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 (Sep 2023)

  ISP IPv6 tests count
1.Bt Uk381
2.Sky Broadband276
3.Community Fibre Limited199
4.British Telecommunications PLC181
5.Hurricane Electric LLC139
6.Zen Internet Ltd133
7.Andrews & Arnold Ltd113
8.Hyperoptic Ltd100
9.YouFibre Limited72
10.Cloudflare, Inc.72
11.Zen Internet Limited68
12.M12 Solutions53
13.SpaceX Starlink53
14.Cityfibre Limited52
15.Infinity Developments Limited52
16.Google, LLC40
17.Atomic Networks LLC40
18.Toob Limited36
19.Akamai Technologies, Inc.23
20.Aaisp22
21.Hutchison 3G UK Ltd21
22.BRSK Limited18
23.Midlands18
24.Zzoomm plc16
25.Gigaclear Limited16

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, Sep 2023)

  ISP Unique IPv6 addresses
1.Bt Uk257
2.Sky Broadband169
3.British Telecommunications PLC125
4.Community Fibre Limited89
5.Zen Internet Ltd83
6.Hurricane Electric LLC71
7.Andrews & Arnold Ltd65
8.Cloudflare, Inc.61
9.Hyperoptic Ltd51
10.YouFibre Limited43
11.SpaceX Starlink40
12.Zen Internet Limited39
13.Cityfibre Limited36
14.M12 Solutions33
15.Google, LLC32
16.Infinity Developments Limited29
17.Toob Limited27
18.Akamai Technologies, Inc.18
19.Hutchison 3G UK Ltd15
20.Fastly, Inc.14
21.BRSK Limited14
22.Sky UK Limited10
23.Aaisp9
24.FibreNest Subscribers8
25.Zzoomm plc8

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.

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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 (Sep 2023)

  ISP Test count IPv4 IPv4 % IPv6 IPv6 %
1.Sky UK Limited1317.7%1292.3%
2.Lee Wireless12216.7%1083.3%
3.Zzoomm plc16318.8%1381.3%
4.TxRx Communications Ltd5120.0%480.0%
5.Trooli Ltd5120.0%480.0%
6.Mega Cable5120.0%480.0%
7.YouFibre Limited721622.2%5677.8%
8.Hyperoptic Ltd1002727.0%7373.0%
9.M12 Solutions531630.2%3769.8%
10.Gigaclear Limited16531.3%1168.8%
11.Andrews & Arnold Ltd1133732.7%7667.3%
12.Cloudflare, Inc.722433.3%4866.7%
13.TechVow Ltd - DevTest Labs6233.3%466.7%
14.Atomic Networks LLC401435.0%2665.0%
15.Zen Internet Limited682435.3%4464.7%
16.Fastly, Inc.14535.7%964.3%
17.British Telecommunications PLC1816636.5%11563.5%
18.Hutchison 3G UK Ltd21838.1%1361.9%
19.Cityfibre Limited522038.5%3261.5%
20.Sky Broadband27610738.8%16961.2%
21.Toob Limited361438.9%2261.1%
22.Akamai Technologies, Inc.23939.1%1460.9%
23.Hutchison 3G UK Limited5240.0%360.0%
24.Squirrel Internet Ltd5240.0%360.0%
25.Bt Uk38115540.7%22659.3%

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 (Sep 2023)

  ISP Test count IPv6 average
1.YouFibre Limited72595.7 Mbps
2.M12 Solutions53418.3 Mbps
3.Community Fibre Limited199382.7 Mbps
4.Hyperoptic Ltd100332.9 Mbps
5.Cityfibre Limited52324.9 Mbps
6.British Telecommunications PLC181242.8 Mbps
7.Cloudflare, Inc.72152.7 Mbps
8.Zen Internet Ltd133107.5 Mbps
9.Hurricane Electric LLC139106.3 Mbps
10.Toob Limited3698.9 Mbps
11.Zen Internet Limited6895.6 Mbps
12.Andrews & Arnold Ltd11376.7 Mbps
13.Ovh Sas1467.0 Mbps
14.Bt Uk38166.5 Mbps
15.SpaceX Starlink5360.8 Mbps
16.Hutchison 3G UK Ltd2158.9 Mbps
17.Sky Broadband27648.4 Mbps
18.Infinity Developments Limited5224.8 Mbps
19.Atomic Networks LLC4024.6 Mbps
20.Mega Cable521.9 Mbps
21.Linode813.0 Mbps
22.Gigaclear Limited1610.9 Mbps
23.Oracle Corporation128.9 Mbps
24.Squirrel Internet Ltd50.0 Mbps
25.FibreNest Subscribers90.0 Mbps
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