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 2023)

  ISP IPv6 tests count
1.Bt Uk828
2.Sky Broadband610
3.British Telecommunications PLC380
4.Cloudflare, Inc.255
5.Zen Internet Limited230
6.Community Fibre Limited202
7.Andrews & Arnold Ltd195
8.Hurricane Electric LLC177
9.SpaceX Starlink124
10.Hyperoptic Ltd118
11.Blix Solutions116
12.YouFibre Limited108
13.Zen Internet Ltd93
14.Cityfibre Limited87
15.M12 Solutions84
16.Toob Limited83
17.Hutchison 3G UK Ltd73
18.BRSK Limited73
19.FiberState65
20.Infinity Developments Limited60
21.Google, LLC51
22.Ovh Sas47
23.Akamai Technologies, Inc.35
24.Stark Industries Solutions LTD31
25.Linode29

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 2023)

  ISP Unique IPv6 addresses
1.Bt Uk388
2.Sky Broadband322
3.British Telecommunications PLC240
4.Cloudflare, Inc.193
5.Hurricane Electric LLC114
6.Community Fibre Limited106
7.Zen Internet Limited105
8.Andrews & Arnold Ltd103
9.Hyperoptic Ltd86
10.SpaceX Starlink84
11.Zen Internet Ltd62
12.YouFibre Limited55
13.Toob Limited48
14.Cityfibre Limited47
15.BRSK Limited43
16.M12 Solutions42
17.Hutchison 3G UK Ltd40
18.Infinity Developments Limited38
19.Google, LLC38
20.Akamai Technologies, Inc.30
21.Zzoomm plc16
22.M247 Europe SRL16
23.FiberState16
24.Zscaler Switzerland GmbH14
25.Vodafone UK14

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 (Nov 2023)

  ISP Test count IPv4 IPv4 % IPv6 IPv6 %
1.Wavenet Limited500.0%5100.0%
2.Vodafone UK2300.0%23100.0%
3.East1900.0%19100.0%
4.Automatum Limited800.0%8100.0%
5.Ryan Hewson1000.0%10100.0%
6.Ah Cloud Ltd600.0%6100.0%
7.North800.0%8100.0%
8.Integrated Digital Services Ltd700.0%7100.0%
9.Stark Industries Solutions LTD3100.0%31100.0%
10.Structured Comminications Global700.0%7100.0%
11.Dangelo600.0%6100.0%
12.Scaleblade1000.0%10100.0%
13.Unchained1500.0%15100.0%
14.Zzoomm plc2600.0%26100.0%
15.Midlands800.0%8100.0%
16.Jisc Services Limited600.0%6100.0%
17.combahton GmbH2800.0%28100.0%
18.Leaseweb UK Limited600.0%6100.0%
19.Servicios Innovadores de Comunicación y Entretenimiento900.0%9100.0%
20.Hutchison 3G UK Limited1200.0%12100.0%
21.Terence Froy trading as "Spilsby Internet Solutions"700.0%7100.0%
22.Squirrel Internet Ltd900.0%9100.0%
23.Portfast Ltd600.0%6100.0%
24.Google, LLC5100.0%51100.0%
25.Merula Limited700.0%7100.0%

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 2023)

  ISP Test count IPv6 average
1.ICUK Computing Services Limited19609.6 Mbps
2.YouFibre Limited108415.2 Mbps
3.Lightspeed Networks Ltd5396.9 Mbps
4.East19389.1 Mbps
5.Infinity Developments Limited60378.4 Mbps
6.Citynet Datacom Ltd15374.8 Mbps
7.M12 Solutions84372.8 Mbps
8.Hyperoptic Ltd118362.4 Mbps
9.Toob Limited83322.3 Mbps
10.Zen Internet Limited230307.1 Mbps
11.BRSK Limited73283.0 Mbps
12.Cityfibre Limited87278.4 Mbps
13.Community Fibre Limited202254.0 Mbps
14.Zen Internet Ltd93250.2 Mbps
15.Keycom PLC16223.0 Mbps
16.Zzoomm plc26165.5 Mbps
17.British Telecommunications PLC380150.3 Mbps
18.Andrews & Arnold Ltd195149.5 Mbps
19.Bt Uk828138.9 Mbps
20.FiberState65125.4 Mbps
21.DigitalOcean, LLC6104.3 Mbps
22.Portfast Ltd695.1 Mbps
23.Box Broadband Limited1788.5 Mbps
24.Trooli Ltd1985.4 Mbps
25.31173 Services AB1683.4 Mbps
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