United Kingdom IPv6 in United Kingdom

These graphs show the evolution of default protocol, v6 address types, and average bandwidth in United Kingdom over time.

They are generated using the data collected by the ipv6-test.com connection test page, and are updated on a monthly basis.

Overall IPv6 and v4 protocol support in United Kingdom

This graph shows the evolution of IPv6 support vs IPv4 for all our connection test.

The numbers are percentages, so we can expect almost 100% of hosts supporting IPv4 with a slow growth for IPv6.

Top 25 internet service providers for IPv6 in United Kingdom (Jan 2019)

  ISP IPv6 tests count
1.Bt Uk1,874
2.Sky Broadband944
3.Hurricane Electric LLC722
4.Zen Internet Limited456
5.Aaisp357
6.Hyperoptic Ltd333
7.Iomart Hosting Ltd205
8.IDnet175
9.Andrews & Arnold Ltd136
10.EE Limited116
11.M247 Ltd115
12.Linode89
13.Obenetwork AB86
14.T-Mobile (UK) Limited74
15.Cfs57
16.1&1 Internet SE52
17.Melbourne Server Hosting Ltd48
18.4D Address47
19.ENTANET International Limited44
20.Redstation Limited38
21.BT Public Internet Service36
22.Uk-global34
23.Interdsl33
24.Digital Ocean32
25.Jump Networks27

IPv6 and v4 protocol support in United Kingdom (unique addresses)

This graph shows the evolution of IPv6 support vs IPv4 for unique users of our connection test.

The numbers are percentages, so we can expect a slow growth towards 50% v4 / 50% v6.

Top 25 internet service providers for IPv6 in United Kingdom (unique addresses, Jan 2019)

  ISP Unique IPv6 addresses
1.Bt Uk963
2.Sky Broadband504
3.Hurricane Electric LLC291
4.Zen Internet Limited266
5.Hyperoptic Ltd211
6.Aaisp210
7.EE Limited88
8.IDnet82
9.T-Mobile (UK) Limited63
10.Cfs37
11.Linode28
12.Andrews & Arnold Ltd22
13.BT Public Internet Service22
14.M247 Ltd21
15.ENTANET International Limited20
16.Janet16
17.Obenetwork AB14
18.Digital Ocean14
19.Virgin Media12
20.Uk-global12
21.Ifb11
22.Jump Networks11
23.4D Address11
24.Interdsl11
25.Iomart Hosting Ltd9

Default browser protocol in United Kingdom

This graph shows the percentage of browsers that default to IPv6 vs. IPv4 when visiting the ipv6-test connection test.

Hopefully, in the not so distant future, the v6 part will grow taller than the v4 one.

Default browser protocol in United Kingdom (dual-stack users)

This graph shows the percentage of browsers that default to IPv6 vs. IPv4 for users that have both v4 and v6 connectivity.

Usually a system will default to v6 when it's available, but in some cases with tunneled connections, v4 stays the default.

Top 25 internet service providers for IPv6 default in United Kingdom (Jan 2019)

  ISP Test count IPv4 IPv4 % IPv6 IPv6 %
1.Interdsl3300.0%33100.0%
2.Digitalfyre1000.0%10100.0%
3.CHINA UNICOM China169 Backbone1300.0%13100.0%
4.Luke William Batchelor600.0%6100.0%
5.BBC Hosting1000.0%10100.0%
6.Mythic Beasts1400.0%14100.0%
7.Structured Comminications Global700.0%7100.0%
8.Jump Networks2700.0%27100.0%
9.Janet1900.0%19100.0%
10.1&1 Internet SE5200.0%52100.0%
11.Redstation Limited3800.0%38100.0%
12.Melbourne Server Hosting Ltd4800.0%48100.0%
13.Obenetwork AB8611.2%8598.8%
14.EE Limited11643.4%11296.6%
15.Cfs5735.3%5494.7%
16.Hyperoptic Ltd333226.6%31193.4%
17.T-Mobile (UK) Limited7456.8%6993.2%
18.Zen Internet Limited456327.0%42493.0%
19.Andrews & Arnold Ltd136118.1%12591.9%
20.Bt Uk1,8741548.2%1,72091.8%
21.Aaisp357308.4%32791.6%
22.Cablecom10110.0%990.0%
23.Sky Broadband9449810.4%84689.6%
24.Iomart Hosting Ltd2052311.2%18288.8%
25.IDnet1753017.1%14582.9%

IPv6 address types in United Kingdom

Here you can see the evolution of address types over time, and measure usage of 6to4 and Teredo tunneled connectivity.

It should be noted that because 6rd works with native addresses, it cannot be detected here as tunneled. This is also the case with VPN based tunnels.

Downstream bandwidth in United Kingdom

This graph illustrates the connection speed gap between IPv4 and IPv6, numbers represent v6 speed as percentage of v4 speed.

The lower IPv6 speeds are often caused by tunneling overhead or insufficient v6 connectivity or peering capacity at ISPs.

Top 25 internet service providers for IPv6 speed in United Kingdom (Jan 2019)

  ISP Test count IPv6 average
1.M247 Ltd115180.6 Mbps
2.Janet19158.5 Mbps
3.1&1 Internet SE52133.8 Mbps
4.Hyperoptic Ltd33381.5 Mbps
5.Clouvider Limited1564.2 Mbps
6.Interdsl3362.0 Mbps
7.ENTANET International Limited4459.8 Mbps
8.Structured Comminications Global752.3 Mbps
9.Bt Uk1,87441.1 Mbps
10.Zen Internet Limited45641.0 Mbps
11.IDnet17538.0 Mbps
12.Aaisp35735.8 Mbps
13.Andrews & Arnold Ltd13635.6 Mbps
14.Iomart Hosting Ltd20534.5 Mbps
15.Obenetwork AB8631.2 Mbps
16.Hurricane Electric LLC72231.0 Mbps
17.UK Dedicated Servers Limited2030.6 Mbps
18.EE Limited11628.5 Mbps
19.T-Mobile (UK) Limited7425.2 Mbps
20.TalkTalk924.0 Mbps
21.IP6net Ltd923.7 Mbps
22.Uk-global3422.3 Mbps
23.Virgin Media1818.0 Mbps
24.Sky Broadband94417.8 Mbps
25.PlusNet plc.1117.8 Mbps