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 (Nov 2019)

  ISP IPv6 tests count
1.Bt Uk2,163
2.Sky Broadband1,136
3.Hurricane Electric LLC529
4.Hyperoptic Ltd498
5.Zen Internet Limited493
6.Aaisp346
7.Uk-tm202
8.Iomart Hosting Ltd145
9.EE Limited119
10.IDnet117
11.Structured Comminications Global76
12.Andrews & Arnold Ltd71
13.Sky Italia68
14.Cloudflarewarp62
15.Web Wiz Ltd54
16.Melbourne Server Hosting Ltd47
17.Linode46
18.H3g Uk45
19.Entire Cerberus Networks41
20.ENTANET International Limited41
21.Janet40
22.1&1 Internet SE33
23.iomart Cloud Services Limited.32
24.Choopa31
25.31173 Services AB30

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, Nov 2019)

  ISP Unique IPv6 addresses
1.Bt Uk1,001
2.Sky Broadband533
3.Hurricane Electric LLC249
4.Hyperoptic Ltd243
5.Zen Internet Limited211
6.Aaisp182
7.Uk-tm141
8.EE Limited85
9.Sky Italia64
10.IDnet61
11.Cloudflarewarp47
12.Structured Comminications Global44
13.Andrews & Arnold Ltd30
14.Web Wiz Ltd26
15.Entire Cerberus Networks25
16.H3g Uk22
17.Janet20
18.ENTANET International Limited17
19.M247 Ltd16
20.Linode16
21.Call Flow Solutions Ltd14
22.DigitalOcean, LLC14
23.TxRx Communications Ltd11
24.Virgin Media Limited10
25.31173 Services AB9

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 (Nov 2019)

  ISP Test count IPv4 IPv4 % IPv6 IPv6 %
1.Melbourne Server Hosting Ltd4700.0%47100.0%
2.Spilsby Internet Solutions600.0%6100.0%
3.iomart Cloud Services Limited.3200.0%32100.0%
4.Cablecom1100.0%11100.0%
5.Internet Engineering Ltd2400.0%24100.0%
6.VMHaus600.0%6100.0%
7.Itnord700.0%7100.0%
8.Iomart Hosting Ltd14510.7%14499.3%
9.1&1 Internet SE3313.0%3297.0%
10.Uk-tm202105.0%19295.0%
11.EE Limited11965.0%11395.0%
12.Structured Comminications Global7645.3%7294.7%
13.Bt Uk2,1631265.8%2,03794.2%
14.4D Address1616.3%1593.8%
15.Internet Central Limited1417.1%1392.9%
16.Sky Italia6857.4%6392.6%
17.TxRx Communications Ltd1317.7%1292.3%
18.Mythic Beasts1317.7%1292.3%
19.IDnet11797.7%10892.3%
20.Sky Broadband1,136938.2%1,04391.8%
21.Aaisp3463610.4%31089.6%
22.Hurricane Electric LLC5295811.0%47189.0%
23.Entire Cerberus Networks41512.2%3687.8%
24.Ifb8112.5%787.5%
25.Uk-global8112.5%787.5%

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 (Nov 2019)

  ISP Test count IPv6 average
1.Hyperoptic Ltd498277.2 Mbps
2.Web Wiz Ltd54247.1 Mbps
3.Entire Cerberus Networks41134.2 Mbps
4.31173 Services AB3067.2 Mbps
5.Linode4661.3 Mbps
6.IDnet11755.9 Mbps
7.Call Flow Solutions Ltd2555.8 Mbps
8.Hydra Communications Ltd553.1 Mbps
9.ENTANET International Limited4151.2 Mbps
10.Bt Uk2,16348.5 Mbps
11.Hurricane Electric LLC52948.4 Mbps
12.Ifb847.2 Mbps
13.Andrews & Arnold Ltd7145.5 Mbps
14.Zen Internet Limited49343.6 Mbps
15.Internet Central Limited1443.1 Mbps
16.Sky Broadband1,13642.6 Mbps
17.Aaisp34640.7 Mbps
18.EE Limited11940.2 Mbps
19.Uk-tm20237.5 Mbps
20.Janet4033.5 Mbps
21.Uk-global832.4 Mbps
22.Cablecom1123.1 Mbps
23.Virgin Media Limited1512.9 Mbps
24.Virgin Media612.5 Mbps
25.Choopa3110.6 Mbps