IPv6 deployment

Deployment of Internet Protocol Version 6 (IPv6), the next generation of the Internet Protocol, has been in progress since the mid-2000s.

IPv6 was designed as a replacement for IPv4 which has been in use since 1982, and is in the final stages of exhausting its unallocated address space, but still carries most Internet traffic.[1] Google's statistics show IPv6 availability of its users at around 30.35–34.15% depending on the day of the week (greater on weekends), as of January 2021.[2][3] Adoption is uneven across countries and Internet service providers. In November 2016, 1,491 (98.2%) of the 1,519 top-level domains (TLDs) in the Internet supported IPv6 to access their domain name servers, and 1,485 (97.8%) zones contained IPv6 glue records, and approximately 9.0 million domains (4.6%) had IPv6 address records in their zones. Of all networks in the global BGP routing table, 29.2% had IPv6 protocol support.[4][5]

By 2011, all major operating systems in use on personal computers and server systems had production-quality IPv6 implementations. Cellular telephone systems present a large deployment field for Internet Protocol devices as mobile telephone service continues to make the transition from 3G to 4G technologies, in which voice is provisioned as a voice over IP (VoIP) service. This mandates the use of IPv6 for such networks. In 2009, the US cellular operator Verizon released technical specifications for devices to operate on its 4G networks.[6] The specification mandates IPv6 operation according to the 3GPP Release 8 Specifications (March 2009), and deprecates IPv4 as an optional capability.[6]

Deployment evaluation tools
Number of IPv6 prefixes and AS on the Internet since 2003
Monthly IPv6 allocations per RIR

Google publishes statistics on IPv6 adoption among Google users. A graph of IPv6 adoption since 2008 and a map of IPv6 deployment by country are available.[7][8]

Akamai publishes by-country and by-network statistics on IPv6 adoption for traffic it sees on its global Content Distribution Network (CDN). This set of data also shows graphs for each country and network over time.[9]

A global view into the history of the growing IPv6 routing tables can be obtained with the SixXS Ghost Route Hunter.[10] This tool provided a list of all allocated IPv6 prefixes until 2014 and marks with colors the ones that were actually being announced into the Internet BGP tables. When a prefix was announced, it means that the ISP at least can receive IPv6 packets for their prefix.

The integration of IPv6 on existing network infrastructure may be monitored from other sources, for example:

IPv6 testing, evaluation, and certification

A few organizations are involved with international IPv6 test and evaluation, ranging from the United States Department of Defense to the University of New Hampshire.

Major milestones
YearMajor development and availability milestones
1996 Alpha quality IPv6 support in Linux kernel development version 2.1.8.[15]
6bone (an IPv6 virtual network for testing) is started.
1997 By the end of 1997 IBM's AIX 4.3 is the first commercial platform supporting IPv6.[16][17]
Also in 1997, Early Adopter Kits for DEC's operating systems, Tru64 and OpenVMS, are made available.[18]
1998 Microsoft Research[19] releases its first experimental IPv6 stack. This support is not intended for use in a production environment.
1999 In February, the IPv6 Forum[20] is founded by the IETF Deployment WG to drive deployment worldwide. This results in the creation of regional and local IPv6 Task Forces.
1999 Implementation of the first IPv6 tunnel broker, by Ivano Guardini that also contributed the RFC:3053, at CSELT.
2000 Production-quality BSD support for IPv6 becomes generally available in early to mid-2000 in FreeBSD, OpenBSD, and NetBSD via the KAME project.[21]
Microsoft releases an IPv6 technology preview version for Windows 2000 in March 2000.[19]
Sun Solaris supports IPv6 in Solaris 8 in February.[22]
Compaq ships IPv6 with Tru64.[18]
2001 In January, Compaq ships IPv6 with OpenVMS.[18]
Cisco Systems introduces IPv6 support on Cisco IOS routers and L3 switches.[23]
HP introduces IPv6 with HP-UX 11i v1.[24]
On April 23, 2001, the European Commission launches the European IPv6 Task Force[25]
2002 Microsoft Windows NT 4.0 and Windows 2000 SP1 have limited IPv6 support for research and testing since at least 2002.
Microsoft Windows XP (2001) supports IPv6 for developmental purposes. In Windows XP SP1 (2002) and Windows Server 2003, IPv6 is included as a core networking technology, suitable for commercial deployment.[26]
IBM z/OS supports IPv6 since version 1.4 (general availability in September 2002).[27]
2003 Apple Mac OS X v10.3 "Panther" (2003) supports IPv6 which is enabled by default.[28]
2004 In July, ICANN announces that IPv6 address records for the Japan (jp) and Korea (kr) country code top-level domain nameservers are visible in the DNS root server zone files with serial number 2004072000. The IPv6 records for France (fr) are added later. This makes IPv6 DNS publicly operational.
2005 Linux 2.6.12 removes experimental status from its IPv6 implementation.[29]
2007 Microsoft Windows Vista (2007) supports IPv6 which is enabled by default.[26]
Apple's AirPort Extreme 802.11n base station includes an IPv6 gateway in its default configuration. It uses 6to4 tunneling and manually configured static tunnels.[30] (Note: 6to4 was disabled by default in later firmware revisions.)
2008 On February 4, 2008, IANA adds AAAA records for the IPv6 addresses of six root name servers.[31][32] With this transition, it is now possible to resolve domain names using only IPv6.
On March 12, 2008, IETF does an hour long IPv4 blackout at its meeting as an opportunity to capture informal experience data to inform protocol design work going forward;[33] this led to many fixes in operating systems and applications.
On May 27, 2008, the European Commission publish their Action Plan for the deployment of Internet Protocol version 6 (IPv6) in Europe,[34] with the aim of making IPv6 available to 25% of European users by 2010.[35]
2011 On June 8, 2011, the Internet Society, in conjunction with several large companies and organizations, held World IPv6 Day, a global 24 hour test of IPv6.[36][37]
2012 On June 6, 2012, the Internet Society, in conjunction with many large companies and organizations, held World IPv6 Launch Day, a global permanent deployment of IPv6.[38][39]

Operating system support
See also: Comparison of IPv6 support in operating systems

By 2011, all major operating systems in use on personal computers and server systems had production-quality IPv6 implementations.[40] Microsoft Windows has supported IPv6 since Windows 2000, and in production-ready state beginning with Windows XP. Windows Vista and later have improved IPv6 support.[41] macOS since Panther (10.3), Linux 2.6, FreeBSD, and Solaris also have mature production implementations. Some implementations of the BitTorrent peer-to-peer file transfer protocol make use of IPv6 to avoid NAT issues common for IPv4 private networks.[42]

Government encouragement

In the early 2000s, governments increasingly required support for IPv6 in new equipment. The US government, for example, specified in 2005 that the network backbones of all federal agencies had to be upgraded to IPv6 by June 30, 2008; this was completed before the deadline.[43][44][45][46] In addition, the US government in 2010 required federal agencies to provide native dual-stacked IPv4/IPv6 access to external/public services by 2012, and internal clients were to utilize IPv6 by 2014.[47] Progress on the US government's external facing IPv6 services is tracked by NIST. The government of the People's Republic of China implemented a five-year plan for deployment of IPv6 called the China Next Generation Internet (see below).

Coexistence with IPv4

On 7 March 2013, the Internet Engineering Task Force created a working group for IPv4 sunset in preparation for protocol changes that could be used to support sunset / shutdown of remanent IPv4 networks.[48][49] However, in May 2018 this working group was closed as no immediate work could be identified due to the slow transition to IPv6.[50]

The Internet Engineering Task Force expects IPv6 to coexist with IPv4 as it is considered impractical to transition to IPv6 in the short term.[51][52] The coexistence is expected to be based on dual-stack, tunneling or translation mechanisms.[53] Dual-stack implementations required two parallel logical networks, increasing cost and complexity of the network.[54] IPv4 networks are expected to slowly transition into segmented subnetworks using IPv4 Residual Deployment.[55]

The slow transition to IPv6 has caused significant resentment in the Internet community.[56][57]

As a result, many larger enterprises, such as Microsoft, are now taking steps to turn IPv4 off, running IPv6-only within the company. In a recent blog, the company describes their heavily translated IPv4 network as "potentially fragile", "operationally challenging", and with regard to dual stack operations (i.e. those running IPv4 and IPv6 simultaneously) "complex".[58]

Deployment by country and region

Algeria

AnwarNet (www.anwarnet.dz); AfriNIC has allocated range of IPv6 address space to AnwarNet. AnwarNet started IPV6 services in 2011.

Australia
  • AARNet completed network AARNet 3, a high-speed network connecting academic and research customers in the major metropolitan centres, with international links to major ISPs in the US, Asia, and Europe. One of the design goals was to support both IPv4 and IPv6 protocols equally. It also supports multicast routing and jumbo frames.[59]
  • IPv6 Now Pty Ltd[60] introduced the first[61] commercial-grade IPv6 tunnel broker service in Australia on April 30, 2008. Also, in June 2008, IPv6Now introduced the first dual stacked (IPv4 & IPv6) web hosting service.[62]
  • Internode is the first commercial ISP in Australia to have full IPv6 connectivity and make IPv6 available to customers.[63] The availability to customers was officially announced to Whirlpool on July 18, 2008.[64]
  • The Victorian State government granted A$350,000 to establish an IPv6 testbed network (VIC6)[65] freely available to industry to evaluate their IPv6 products and strategies.[66]
  • Telstra announced on 5 September 2011 that their backbone network was fully double-stacked and that they had commenced providing its enterprise, government and wholesale customers with IPv6 connectivity, and helping customers through the transition;[67] they would activate IPv6 addressing for its mobile network on 12 September 2016.[68]
  • Aussie Broadband offers native IPv6 as an opt-in beta feature, as of November 2018 however it had to be withdrawn briefly due to bugs in their Cisco supplied equipment.

Bangladesh
  • Infolink successfully tested and started commercial IPv6 beta deployment to end user for the first time in Bangladesh on May 22, 2017.[69]

Belgium
  • On July 13, 2010, Logica Netherlands (operating within the SPITS project in cooperation with Mobistar Belgium) successfully tested native IPv6 over UMTS/GPRS in Belgium and the Netherlands within a vehicle platform as an Intelligent transportation system solution. The test was performed both in gsm and in tethering mode using a Nokia smart-phone.[70]
  • Since September 2013, research and government ISP Belnet offers native IPV6 to all customers.[71]
  • VOO[72] A large residential ISP (cable) started its transition in April 2013 leading to impressive growth[73] in IPv6 in Belgium
  • Telenet started its transition in February 2014, helping to push the Belgian average of IPv6 usage to almost 30%[74] by September 2014 and putting them in the top 10 of worldwide ISPs[75] of which customers are visiting websites with IPv6.
  • According to APNIC, IPv6 penetration is 52% as of January 2019; penetration briefly peaked around 70% in August 2017.[76]

Brazil

As of January 2019, Brazil has 27% IPv6 adoption.[8] IPv6 adoption in the country was boosted in 2015 when the Brazilian telecommunications agency, Anatel, announced that all Internet operators and service providers would be required to provide IPv6 addresses to consumers. This was one of a number of initiatives to increase the speed of deployment.[77]

Bulgaria

Has constructed a research center to study the possibilities of adopting IPv6 in the country. The center will operate alongside another facility, which is equipped with an IBM Blue Gene/P supercomputer.[78]

Since 2015, the ISP Blizoo enabled IPv6 for many home customers.

At the end of 2016, the ISP ComNet Bulgaria Holding Ltd. has provided complete IPv6 support for all customers and households within company network in Bulgaria.[79]

Canada

IPv6 deployment is slow but ongoing, with major Canadian ISPs (notably Bell Canada) lacking in support for its residential customers, and the majority of their business customers (including server packages). According to Google's statistics, Canada reached an IPv6 adoption rate of 30.25% as of January 2021.[3]

  • Rogers Communications has deployed native IPv6 network wide, including their DOCSIS 3.0/3.1 wireline broadband network and their HSPA/LTE mobile network. In 2018, it appears that all Wireless LTE devices in the network have only IPv6 address and no more IPv4 Gateway, IP address and DNS for service.
  • Shaw Communications has IPv6 including DOCSIS 3.1 for residential customers using the latest XB6 cable modems since 2018.
  • Fibrenoire,[80] a Canadian Metro Ethernet fibre network operating in Quebec and Ontario, has been providing native IPv6 connectivity since 2009.
  • Peer 1[81] has provided IPv6 backbones to Canadian data centres since 2011, as well as in its peering centers.
  • TekSavvy has deployed its own IPv6 network to its customers on DSL in Alberta, British Columbia, Ontario, and Quebec as well as for cable customers serviced by Rogers Communications.[82]
  • Vidéotron[83] has deployed their own IPv6 network to customers as a beta service.[84]
  • SaskTel has deployed IPv6 support for business customers subscribing to their Dedicated Internet or LANSpan IP product.[85]
  • Telus has deployed IPv6 support for business services and residential customers with 44% IPv6 usage in December 2015 according to World IPv6 Launch measurements[86]
  • Origen Telecom[87] is a Canadian internet service provider operating in Montreal and Toronto, and supports IPv6 connectivity for its business clients.
  • Belair Technologies[88] Operating in Montreal, Laval and surrounding area as well as Cornwall and Toronto, and fully supports IPv6 connectivity for all its clients.
  • TelKel, a relatively new ISP which offers FTTH only, in Montreal, Quebec and suburbs, supports native dual-stack IPv4 and IPv6 since the beginning.
  • Cogeco provides IPv6 to customers.[89]
  • Beanfield Metroconnect provides IPv6
  • EBOX provides IPv6 to its customers since 2013 on fiber and DSL/FTTN last-mile technologies.

China

The China Next Generation Internet (CNGI, 中国下一代互联网) project is a five-year plan initiated by the Chinese government with the purpose of gaining a significant position in the development of the Internet through the early adoption of IPv6. China showcased CNGI's IPv6 infrastructure during the 2008 Summer Olympics, being the first time a major world event has had a presence on the IPv6 Internet.[90] At the time of the event, it was believed that the Olympics provided the largest showcase of IPv6 technology since the inception of IPv6.[91] The deployment of IPv6 was widespread in all related applications, from data networking and camera transmissions for sporting events, to civil applications, such as security cameras and taxis. The events were streamed live over the Internet and networked cars were able to monitor traffic conditions readily, all network operations of the Games being conducted using IPv6.[92]

Also, the CERNET (China Education and Research NETwork, 中国教育和科研计算机网, 教育网) set up native IPv6 (CERNET2), and since then many academic institutions in China joined CERNET2 for IPv6 connectivity. CERNET-2 is probably the widest deployment of IPv6 in China. It is managed and operated jointly by 25 universities.[93] Students in Shanghai Jiao Tong University and Beijing University of Posts and Telecommunications, for example, get native IPv6.[94][95]

In November 2017, the Communist party decreed a plan to get all its Internet users on IPv6 by 2025 with a quarter of them by the end of 2018.[96]

Czech Republic

As of September 2019, the country has deployment ratio around 11%, both by Google and APNIC stats.

  • O2 Czech Republic have deployed IPv6 on residential xDSL lines since 2012.[97] It uses dual-stack PPPoE with CGN for IPv4. Only /64 prefix size is available via DHCP-PD.
  • T-Mobile Czech Republic have deployed IPv6 on residential xDSL lines since 2014.[98] It uses dual-stack PPPoE with one public static IPv4 address and /56 IPv6 prefix delegated via DHCP-PD.
  • UPC Czech Republic have deployed IPv6 on residential DOCSIS lines since 2017.[99] IPv6-only network with IPv4 over DS-Lite is used. Customers are forced to terminate the connection in carrier-provided CPE with limited customization options.
  • IPv6 is generally available in datacenters and web hosting companies.
  • As of 2019, no mobile network supports IPv6.

Denmark

As of July 2020, the country has only 4% IPv6 traffic, according to Google stats.[3]

A web page (in Danish) follows national IPv6 deployment.[100]

The ISP Fullrate has begun offering IPv6 to its customers, on the condition that their router (provided by the ISP itself) is compatible.[101] If the router is of a different version, the customer has to request a new router.

Several other small ISP have already began implementing the protocol as well as 3, the smallest mobile provider.

Estonia

Estonian Telekom is providing native IPv6 access on residential and business broadband connections since September 2014. According to Google's statistics, Estonia has reached an IPv6 adoption rate of 28% by July 2020.[3]

Finland

FICORA (Finnish Communications Regulatory Authority), the NIC for the .fi top level domain, has added IPv6 address to DNS servers, and allows entering IPv6 address when registering domains.[102] The registration service domain.fi for new domains is also available over IPv6.

A small Finnish ISP Nebula has offered IPv6 access since 2007.[103]

FICORA held national IPv6 day on June 9, 2015.[104] At that time Elisa and DNA Oyj started providing IPv6 on mobile subscriptions, and Telia Company (via 6rd) and DNA Oyj (native) started providing IPv6 on fixed-line connections.

According to Google's statistics, Finland has reached an IPv6 adoption rate of 31% by July 2020.[3]

France
  • AFNIC, the NIC for (among others) the .fr Top Level Domain, has implemented IPv6 operations.[105]
  • Renater, the French national academical network, is offering IPv6 connectivity including multicast support to their members.
  • Free, a major French ISP, rolled-out IPv6 as an opt-in at end of year 2007.[106] In 2020, it removed the possibility to out-out, effectively reaching 99% coverage.[107] Free also activated IPv6 on its mobile network just after Christmas 2020.[108]
  • Nerim, a small ISP, provides native IPv6 for all its clients since March 2003.[109]
  • Orange (formerly France Telecom), a major ISP, is currently rolling out IPv6 on its wired network. ETA Q2 2016 for FTTH and VDSL, 2017 for ADSL.[110]
  • OVH has implemented IPv6.[111]
  • FDN, a small associative ISP, has been providing native IPv6 since November 2008.[112]
  • SFR, a major ISP, rolled out IPv6 as an opt-in on its wired network.[113][114]
  • Bouygues Telecom plans deployment for 2017.[115]

As of January 2021, France has 42.91% IPv6 traffic according to Google, and 40% according to APNIC.[116]

Germany

According to Google's statistics, Germany has reached an IPv6 adoption rate of 52.80% by 52.80%.[117][3]

  • DFN backbone network offers full native IPv6 support for their participants.[118] Many scientific networks in Germany, like the Munich Scientific Network (MWN) operated by Leibniz-Rechenzentrum, are connected to this network.[119]
  • Deutsche Telekom started rolling out IPv6 for new All-IP DSL customers in September 2012.[120] Telekom started to roll out IPv6 (dual stack) in their mobile network in August 2015.[121] In January 2020 Deutsche Telekom announced a new APN for IPv6-only.[122] The overall deployment rate for both mobile and fixed network was 62% as of 31 December 2018.[123]
  • Vodafone Kabel Deutschland and Unitymedia offer native IPv6 to their new customers. The adoption rate was 63% for both Vodafone Kabel and Unitymedia as of 31 December 2018.[124][125]
  • M-net, a regional carrier and ISP, offers native IPv6 for their customers. Adoption rate was 58% as of 31 December 2018.[126]
  • Regional carrier and ISP NetCologne has begun offering native IPv6 to its customers. Deployment rate was 68% as of 31 December 2018.[127]
  • Primacom offers IPv6 for their customers.[128]
  • Tele Columbus offers IPv6 connectivity since End of 2014.[129]
  • Deutsche Glasfaser offers ipv6 via DHCPv6 or 6rd. IPv4 connectivity is provided via CGN to its customers.[130]
  • O2 has introduced IPv6 for new DSL customers in 2018.[131]
  • Vodafone started with IPv6 in its mobile network end of 2019 [132]

O2 is the only one mobile carrier in Germany without IPv6 for data connections (mid of 2020).

Hong Kong
DateEntityDescription
2004Hong Kong Internet ExchangeHong Kong Internet Exchange (HKIX), the local Internet exchange point, started to operate its IPv6 exchange (HK6IX).
2006Hong Kong Internet Registration CorporationThe Hong Kong Internet Registration Corporation, the administrator of the .hk domain, started offering IPv6 domain name services.
2008Hong Kong governmentHong Kong government enhanced the Government Backbone Network to inter-connect the systems of bureaux and departments using IPv6.
2009Hong Kong governmentHong Kong government enhanced the Government Internet Gateway systems so that the public can access over 200 government websites, including GovHK using IPv6 and use Internet mails to communicate with over 60 government bureaux and departments using IPv6. Also, government users can access IPv6 resources through the Internet.
2012Hong Kong ObservatoryThe Hong Kong Observatory launched the IPv6 network time service.[133][134]
2012Hong Kong governmentHong Kong government initiated the Next Generation GovWiFi Programme[135] to provide better and faster free Wi-Fi service, which supported IPv6, for the general public.[136]
2013goIPv6 Consortium[137]The goIPv6 Consortium introduced free IPv6 tunneling service for Hong Kong users to connect to the IPv6 Internet through their existing IPv4 network connection.[138]

Hungary

In Hungary Externet was the first ISP starting deploying IPv6 on its network in 2008 August.[139] The service was commercially available since 2009 May.[140][141]

Magyar Telekom was running tests on its production environments since the beginning of 2009. Free customer trials started on November 2, 2009, for those on ADSL or Fiber Optic.[142][143] Customers are given a /128 via DHCP-ND unless they register their DUID in which case they receive a /56 – using a static configuration results in a single /64.

According to information on telecompaper.com,[144] UPC Hungary will start deploying IPv6 in mid-2013, finishing it in 2013. The plan has not materialized until the end of 2015.[145]

In 2015, December RCS&RDS (Digi) has enabled native dual stack IPv6(customers receive dynamic /64 prefixes) for its FTTB/H customers.[146][147][148][149] In November the same year UPC Hungary introduced DS Lite(with private IPv4 addresses)[150] which can be enabled on a customer-to-customer basis if the customer asks for it.

Magyar Telekom deployed dual stack IPv6 (using dynamic /56 prefixes on DSL and GPON and static /56 prefixes on DOCSIS) for all of its wired (and for all of its compatible mobile) customers in October 2016.[151][152][153][154][155]

According to the statistics of APNIC, IPv6 use in Hungary as of 2018 December has reached around 20%.[156]

According to Google's IPv6 statistics the adoption rate in Hungary as of July 2020 is 26%.[3]

India

According to Google's statistics, India has reached an IPv6 adoption rate of around 54.74% in January 2021.[3]

APNIC places India at more than 70% preferring IPv6.[157]

  • Department of Telecommunications, of the government of India has run workshops on IPv6 on 13 February 2015 at Silvassa & on 11 February 2015, at DoT headquarters, New Delhi. They have also released roadmaps on IPv6 deployment.[158]
  • Sify Technologies Limited,[159] a private Internet service provider, rolled out IPv6 in 2005.[160] Sify has a dual-stack network that supports commercial services on IPv6 transport for its enterprise customers.[160] Sify is a sponsored member of 6Choice, a project by India-Europe cooperation to promote IPv6 adoption. Sify.com is the first to launch a dual-stack commercial portal.
  • ERNET – The Indian Education and Research Network, Department of Electronics & IT of the government of India is providing dual stack networks from 2006 onwards and has been part of many EU funded initiative such as 6Choice, 6lowpan, Myfire, GEANT etc. ERNET's[161] own websites and those hosted of other organisations are all running on dual stack. ERNET provides Consultancy and Turnkey project Implementation to organisations migrating to IPv6 along with fulfilling their Training needs. ERNET has an IPv6 central facility aimed at system and network administrators to provide hands-on training in the use and configuration of web, mail, proxy, DNS and other such servers on IPv6 spearheaded by Praveen Misra, an IPv6 evangelist.
  • Reliance JIO has deployed and is offering IPv6 services in India since September 2016,[162] and has migrated 200M of their Internet users on their IPv6 only mobile network by the end of 2017.[163]

Ireland

Growth of IPv6 in Ireland as seen by Google.

Japan
  • Telecommunications company NTT announces itself as the world's first ISP to offer public availability of IPv6 services in March 2000.[164]

According to Google's statistics, Japan had an IPv6 adoption rate of 35% by July 2020.[3]

Lebanon
  • Telecommunications company Ogero enabled IPv6 support for DSL users and for private operators since July 2018[165]

Lithuania

The LITNET academic & research network has supported IPv6 since 2001. Most commercial ISPs have not publicly deployed IPv6 yet.

Luxembourg
  • RESTENA, the national research and education network, has been running IPv6 for a number of years. It is connected to the European GEANT2 network. In addition, it runs one of the country Internet exchanges, which supports IPv6 peering.[166] RESTENA also runs the .lu top level domain, which also supports IPv6.[167]
  • P&T Luxembourg, main telecom and Internet service providers, has announced they have production quality IPv6 connectivity since January 2009, with the first professional customers being connected as of September 2009.[168] Deployment of IPv6 to residential customers is expected to take place in 2010.[169]

According to Google's statistics, Luxembourg reached an IPv6 adoption rate of 36% by July 2020.[3]

Netherlands
  • SURFnet, maintainer of the Dutch academical network SURFnet, introduced IPv6 to its network 1997, in the beginning using IPv6-to-IPv4 tunnels. Its backbone is entirely running dual-stack, supporting both native IPv4 and IPv6 to most of its users.[170]
  • XS4All is a major Dutch ISP. In 2002 XS4All was the first Dutch broadband provider to introduce IPv6 to its network,[171] but it has only been experimental. In May 2009 the provider provided the first native IPv6 DSL connections.[172] As of August 2010 native IPv6 DSL connections became available to almost all their customers.[173] Since June 2012 native IPv6 is enabled by default for all new customers.[174]
  • Business-orientated Internet provider BIT BV[175] has been providing IPv6 to all their customers (DSL, FTTH, colocated) since 2004.[176]
  • SixXS[177] had two private Dutch founders and has been partnering with IPv6 Internet service providers in many countries to provide IPv6 connectivity via IP tunnels to users worldwide since 2000. It started out as IPng.nl with a predominantly Dutch user base and reorganized as SixXS to be able to reach users internationally and be diversified in ISP support.[178] SixXS also provided various other related services and software which contributed significantly to IPv6 adoption and operation globally. They ceased their operation on 6-6-2017.[179]
  • Business ISP Introweb provides an IPv6-only 8 Mbit/s ADSL connection for 6 euro per month to 100 customers as a pilot, both for companies to learn how to adapt to IPv6 as for themselves in working on a fully IPv6 enabled network.[180][181]
  • Signet is the first ISP in the country which provides IPv6 connectivity together with IPv4 on multiple national fiber networks (Eurofiber, Glasvezel Eindhoven, BRE, Glasnet Veghel, Ziggo, and Fiber Port).[182]
  • Most Dutch hosting companies, including the biggest one, Leaseweb,[183] support IPv6, but customers by default get only IPv4 address.
  • Several government sites (such as Rijksoverheid.nl) are available via IPv6.[184]
  • On July 13, 2010, native IPv6 over UMTS/GPRS was successfully tested in Belgium and The Netherlands within a vehicle platform as an Intelligent transportation system solution. The test was performed both in gsm and in tethering mode using a Nokia smart-phone. This test was performed by Logica Netherlands within the SPITS project,[185] in cooperation with Mobistar Belgium.[70]
  • In 2018 KPN started issuing /48 address blocks to their business clients for a one-time fee.
  • T-Mobile doesn't have plans to deploy IPv6 yet.[186]

New Zealand

As of 2012, surveys conducted by the New Zealand IPv6 Task Force indicated that awareness of IPv6 had reached a near-universal level among New Zealand's large public- and private-sector organisations, with adoption mostly occurring as part of normal network refresh cycles. Most of New Zealand's ISP and carrier community have a test environment for IPv6 and many have started bringing IPv6 products and services on-stream.[187] An increasing number of New Zealand government websites are available over IPv6, including those of the Ministry of Defence (New Zealand), Ministry for Primary Industries (New Zealand) and the Department of Internal Affairs.

  • Massey University has enabled IPv6 on its border and core campus routers. Its central network services, including DNS, external email and NTP are also enabled. Massey's main website is IPv6-enabled and remote login to some servers and network equipment also support IPv6 for systems administration and networking staff.
  • IPv6 has been enabled on 15 websites hosted at Tauranga City Council (TCC). Changes to equipment on the council's internal LAN have also been made to enable IPV6. Some internal networks across the organisation have been enabled for IPv6, and dual-stack technology is being used to enable both IPv4 and IPv6 use. A number of internal servers and client devices communicate via IPv6, and a teredo relay and 6to4 relay ensure users using these two transition technologies are well served when accessing IPV6 addresses.
  • The University of Auckland IT Services team has partially deployed IPv6, in collaboration with the Science Faculty and the Computer Science Department. It has IPv6 connectivity via KAREN and its commercial ISP. Computer Science is fully dual-stacked; IPv6 has been used in undergraduate laboratory assignments and for post-graduate projects.
  • KAREN, New Zealand's R&E network, is an IPv6 native network and has provided IPv6 as a standard service offering to its members since 2006.
  • Auckland-based ISP WorldxChange Communications has had dual-stack since 2008. It has started providing residential customers with dual (IPv4 and IPv6) service using DHCPv6, on a trial basis.[188]
  • Government Technology Services, a business group of the Department of Internal Affairs (DIA), has an IPv6 website as a proof of concept to demonstrate how New Zealand government websites can be made accessible to the IPv6 Internet.
  • South Island-based Internet Service Provider Snap Internet provides native IPv6 connectivity for all its customers. Its network is fully IPv6-enabled, with the IPv6 service running alongside Snap's normal IPv4 connectivity.
  • Palmerston North-based ISP Inspire Net has had native IPv6 transit since late-2009.
  • Internet Service Provider DTS's transit, managed and hosting services are fully IPv6 capable.
  • Trans-Tasman service provider Vocus Communications offers full dual-stack IP transit services and also supports IPv6 transport on its private IP WAN service in NZ.

Philippines

The government is in process of upgrading its facilities. Globe Telecom has already set in motion the transition of its core IP network to IPv6, noting that it is now fully prepared even as the Internet runs out of IPv4 addresses. Globe claims it is the first local telecommunication company to test IPv6 with Department of Science and Technology (Philippines). In some cases, like test networks or users, IPv6 or both maybe present.[189]

Poland
  • The Polish national research and education network began an IPv6 trial period in 2002.[190] As for now native IPv6 connectivity is available to numerous educational and private clients connected via citywide networks operated by local universities.
  • Polish Internet Exchange, a commercial and carrier-neutral Internet traffic exchange point, has facilitated IPv6 peering between numerous[191] operators since 2008.[192]
  • Orange Polska  – In March 2013, the mobile operator launched mobile access to the Internet via IPv6 protocol for their subscribers. In September 2013, Sony Xperia Z1 became the first IPv6 compliant device commercially available in Orange Poland.

Romania
  • As of June 2012, the ISP named RCS&RDS offers dual stack IPv4/IPv6 PPPoE services to current home users using modern versions of Microsoft Windows, Mac OS X, Linux and other IPv6-ready devices.[193] More than 1 million RCS & RDS residential customers can now use native IPv6 on a dual stack PPPoE connection and 16%[194] already do.

Russian Federation
  • ER-Telecom offers native IPv6 to customers since 10.10.2013 using PPPoE Dual-Stack and DHCPv6 Prefix Delegation
  • MTS provides native IPv6 for mobile customers since April 2017

Sri Lanka

Sudan

The Sudanese IPv6 task Force SDv6TF was formed in 2010 to fellow the implementation of IPv6 migration plan (2011–2015).[199]

By November 2012, all telecom operators are becoming IPv6 enabled, this was tested for the first time at the AFRINIC-17 meeting held in Khartoum.[200]

SudREN[201] (Sudanese Research and Education Network) is the first ISP to provide native IPv6 connectivity of the member institution. By August 2014, SudREN.edu.sd is fully IPv6 Enabled. Two certification received from IPv6 Forum,[202] for WWW and ISP Enabled Logos.

Sweden
  • Bahnhof offers IPv6 to businesses.[203]
  • Tele2 have begun IPv6 rollout to mobile customers (both consumers and businesses).[204]
  • Tre rolled out IPv6 in 2018.[205]
  • Com Hem offers IPv6 to businesses[206] and to consumers in some locations.[207]

Operators offering native IPv6 access for business clients and collocation customers include Tele2 and Phonera.

Switzerland
  • The Data Center Light is the first commercial IPv6 only data center in Switzerland
  • Swisscom offers IPv6 over 6rd to private customers.
  • Init7 offers native IPv6 on all their offerings.
  • iway offers native IPv6 on customer lines.
  • Sunrise provides IPv6 for some of the products, private customers can enable 6rd.
  • UPC Switzerland offers native IPv6 with DS-lite to new customers.

Tunisia

Started deploying IPv6 in 2010. In 2011, ATI (Tunisian Internet Agency) obtained a new IPv6 block from AFRINIC (2c0f:fab0::/28). In 2013–2015, Gnet (Global Net), and CIMSP (Computing Departement of Health Ministry) received IPv6 prefixes from AFRINIC. Deployment of an IPv6 tunnel between ATI and HE (Hurricane Electric). In 2016, CCK (Centre de Calcul El Khawarizmi) obtains its own IPv6 (/32) block from AFRINIC. In 2016, ISET Charguia (Higher Institute of Technologies in Tunisia) deployed its IPv6 network as end user.

Ukraine

Some IPv6 implementation has taken place.

United Kingdom
  • JANET, the UK's education and research network, introduced IPv6 unicast support into its service level agreement in 2008.[208] Several major UK universities and colleges (e.g., Cambridge and Esher College) upgraded their campus routing infrastructure to provide IPv6 unicast support to their users.
  • Andrews & Arnold launched a native (non-tunneled) IPv6 service in October 2005 and offer IPv6 by default.[209]
  • The UK government started to replace much of its Government Secure Intranet (a wide-area network) with a new Public Services Network (PSN) in late 2009. The aspiration was to deploy using IPv6 and support IPv4.[210] The implementation is based on IPv4 but suppliers must be capable of supporting IPv6.[211]
  • BT Group announced in August 2016 that most of its customers can expect IPv6 connectivity in early 2017.[212]
  • Zen Internet enabled IPv6 for all customers in December 2015, after a successful trial earlier that year.[213]
  • Spitfire Network Services offer native dual-stack IPv6 on broadband and Ethernet services.[214]
  • Sky Broadband enabled IPv6 for a majority of their customers in the first half of 2016.[215]

According to Google's statistics, United Kingdom has reached an IPv6 adoption rate of 34.5% as of January 2021.[3]

United States

In the United States the majority of smartphones use IPv6, but only a small percent of computers and tablets use IPv6. As of January 2021, 44.44% of Google users in the US use IPv6.[3]

DateEntityDescription
2000Stealth CommunicationsStealth Communications (AS8002) has been providing production IPv6 since 2000 when it received its pTLA status on 6bone.[216] The company later received its sTLA allocation from ARIN in 2001, making it the 12th organization at that time to receive production IPv6 addressing in North America.[217][218]
2005Sonic.netSonic.net offers partial support for IPv6. They assign a /60 to any customer requesting address space and deliver the IPv6 packets over a 6in4 tunnel.[219]
2008Department of DefenseAs with IPv4, the Department of Defense holds a larger IPv6 allocation than any other entity, a /13 block, enough to create almost 2.3 quadrillion (2.3×1015) local area networks, 64 times as many as the next largest entity.[220]
2008Hurricane ElectricHurricane Electric (AS6939),[221] an early IPv6 adopter and maintains a native IPv6 backbone and as of 2008 was one of the largest IPv6 connectivity and hosting providers in the United States. It was the first IPv6 backbone operator in the world to reach 200 IPv6 BGP adjacencies. Through its IPv6 tunnel broker service,[222] Hurricane also provides free IPv6 connectivity to users in the United States and in several other countries.
2011ComcastComcast started IPv6 pilot market deployment in 2011.[223][224]
2011Time Warner CableTime Warner Cable was conducting IPv6 trials for their customers from September 2011.[225]
2011AT&TAT&T started testing their networks with IPv6 in 2006.[226] and started rolling out IPv6 to customers with compatible CPEs in Q4 2011.[227]
2012US Department of EducationUS Department of Education (ED) became the first cabinet-level agency to deploy IPv6 on its DNS services across its 17 .gov domains on August 5, 2012.[228]
2012Google FiberGoogle Fiber launched with IPv6 support in 2012.
2012Charter CommunicationsCharter Communications offers IPv6 access to all of its customers via a freely accessible IPv6 rapid deployment server since at least March 2012.[229]
2012CenturyLinkCenturyLink offered IPv6 access to all of its customers since at least 2012.[230]
2013T-MobileT-Mobile has made IPv6 its default phone configuration for all new Android 4.3+ devices.[231] using 464XLAT.[232] As of December 2013, phones configured by default for IPv6 / 464XLAT include the Samsung Galaxy Note 3, Galaxy Light, MetroPCS Samsung Mega, and the Google Nexus 5.[233]
2013Verizon WirelessAs of June 2013, over 31%[234] of all users on Verizon Wireless had IPv6.
2016Verizon WirelessAs of June 2016, over 72%[235] of all users on Verizon Wireless had IPv6.
2017Hurricane ElectricHurricane Electric (AS6939) becomes the first Internet backbone in the world to reach 4000 IPv6 BGP adjacencies.[236]

Further countries

As of January 2021[3]

Events

World IPv6 Day
Main article: World IPv6 Day

The Internet Society promoted June 8, 2011, as "World IPv6 Day".[237] The event was described as a "test drive" for full IPv6 rollouts.[238]

World IPv6 Launch

The Internet Society declared June 6, 2012, to be the date for "World IPv6 Launch", with participating major websites enabling IPv6 permanently, participating ISPs offering IPv6 connectivity,[239] and participating router manufacturers offering devices enabled for IPv6 by default.[239][240]

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