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 (Mar 2019)

  ISP IPv6 tests count
1.Bt Uk1,886
2.Sky Broadband917
3.Hurricane Electric LLC556
4.Aaisp524
5.Zen Internet Limited401
6.Hyperoptic Ltd262
7.EE Limited202
8.T-Mobile (UK) Limited152
9.IDnet119
10.Linode108
11.Portfast Ltd87
12.M247 Ltd85
13.Obenetwork AB63
14.Assigned60
15.Andrews & Arnold Ltd52
16.Iomart Hosting Ltd50
17.Structured Comminications Global43
18.Cfs34
19.ENTANET International Limited31
20.Digital Ocean29
21.Uk-global28
22.H3g Uk28
23.4D Address28
24.Virgin Media27
25.Entire Cerberus Networks22

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, Mar 2019)

  ISP Unique IPv6 addresses
1.Bt Uk910
2.Sky Broadband544
3.Hurricane Electric LLC280
4.Aaisp251
5.Zen Internet Limited191
6.Hyperoptic Ltd155
7.EE Limited133
8.T-Mobile (UK) Limited117
9.IDnet66
10.Assigned46
11.Linode23
12.Cfs22
13.H3g Uk20
14.ENTANET International Limited18
15.Andrews & Arnold Ltd16
16.4D Address16
17.Structured Comminications Global16
18.Obenetwork AB14
19.Uk-global14
20.Janet12
21.Cablecom12
22.M247 Ltd12
23.Virgin Media11
24.Jisc Services Limited10
25.ENTANET International Ltd10

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 (Mar 2019)

  ISP Test count IPv4 IPv4 % IPv6 IPv6 %
1.1&1 Internet SE1200.0%12100.0%
2.Schlund800.0%8100.0%
3.H3g Uk2800.0%28100.0%
4.Janet1500.0%15100.0%
5.CreeperHost LTD500.0%5100.0%
6.Melbourne Server Hosting Ltd800.0%8100.0%
7.Cablecom1600.0%16100.0%
8.MCKAYCOM Ltd700.0%7100.0%
9.Andrews & Arnold Ltd5200.0%52100.0%
10.Uk-global2800.0%28100.0%
11.Hydra Communications Ltd800.0%8100.0%
12.T-Mobile (UK) Limited15210.7%15199.3%
13.Assigned6011.7%5998.3%
14.Iomart Hosting Ltd5012.0%4998.0%
15.ENTANET International Limited3113.2%3096.8%
16.Entire Cerberus Networks2214.5%2195.5%
17.Cfs3425.9%3294.1%
18.Hyperoptic Ltd262176.5%24593.5%
19.EE Limited202146.9%18893.1%
20.Obenetwork AB6357.9%5892.1%
21.Bt Uk1,8861578.3%1,72991.7%
22.Jisc Services Limited1119.1%1090.9%
23.Sky Broadband917899.7%82890.3%
24.IP- Accelerated IT Services GmbH10110.0%990.0%
25.Aaisp5246211.8%46288.2%

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 (Mar 2019)

  ISP Test count IPv6 average
1.Cfs34327.2 Mbps
2.Hyperoptic Ltd262125.8 Mbps
3.Kalnet4U Ltd1469.2 Mbps
4.ENTANET International Limited3152.7 Mbps
5.Zen Internet Limited40149.3 Mbps
6.Bt Uk1,88647.8 Mbps
7.Entire Cerberus Networks2243.6 Mbps
8.Structured Comminications Global4342.1 Mbps
9.Aaisp52442.1 Mbps
10.Hurricane Electric LLC55638.5 Mbps
11.Janet1537.1 Mbps
12.IDnet11933.4 Mbps
13.EE Limited20230.2 Mbps
14.T-Mobile (UK) Limited15229.6 Mbps
15.Uk-global2826.9 Mbps
16.Sky Broadband91724.1 Mbps
17.Portfast Ltd8719.0 Mbps
18.Obenetwork AB6317.5 Mbps
19.Choopa1214.1 Mbps
20.PlusNet plc.1613.5 Mbps
21.ENTANET International Ltd1813.0 Mbps
22.Linode10810.2 Mbps
23.Bandwidth Technologies Ltd188.7 Mbps
24.Google67.9 Mbps
25.Virgin Media276.4 Mbps