IPv6 in United KingdomThese 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.
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.
| ISP | IPv6 tests count | |
|---|---|---|
| 1. | Bt Uk | 772 |
| 2. | Sky Broadband | 633 |
| 3. | Andrews & Arnold Ltd | 442 |
| 4. | British Telecommunications PLC | 398 |
| 5. | Hyperoptic Ltd | 320 |
| 6. | Cityfibre Limited | 265 |
| 7. | Zen Internet Ltd | 252 |
| 8. | Hurricane Electric LLC | 244 |
| 9. | The Constant Company | 129 |
| 10. | Akamai Technologies, Inc. | 116 |
| 11. | Community Fibre Limited | 116 |
| 12. | Cloudflare, Inc. | 95 |
| 13. | EE Limited | 93 |
| 14. | SpaceX Starlink | 90 |
| 15. | Zen Internet Limited | 84 |
| 16. | Blix Solutions | 83 |
| 17. | Route48 | 82 |
| 18. | M12 Solutions | 72 |
| 19. | Infinity Developments Limited | 71 |
| 20. | Oracle Corporation | 58 |
| 21. | Toob Limited | 57 |
| 22. | xTom GmbH | 49 |
| 23. | Cloudflarewarp | 43 |
| 24. | Ovh Sas | 42 |
| 25. | Path Global UK Limited | 42 |
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.
| ISP | Unique IPv6 addresses | |
|---|---|---|
| 1. | Bt Uk | 475 |
| 2. | Sky Broadband | 342 |
| 3. | British Telecommunications PLC | 232 |
| 4. | Andrews & Arnold Ltd | 220 |
| 5. | Hyperoptic Ltd | 171 |
| 6. | Zen Internet Ltd | 149 |
| 7. | Hurricane Electric LLC | 146 |
| 8. | The Constant Company | 92 |
| 9. | Akamai Technologies, Inc. | 90 |
| 10. | Community Fibre Limited | 79 |
| 11. | Cloudflare, Inc. | 74 |
| 12. | EE Limited | 62 |
| 13. | SpaceX Starlink | 53 |
| 14. | Zen Internet Limited | 52 |
| 15. | Cityfibre Limited | 51 |
| 16. | M12 Solutions | 46 |
| 17. | Infinity Developments Limited | 45 |
| 18. | Route48 | 40 |
| 19. | Toob Limited | 33 |
| 20. | Cloudflarewarp | 30 |
| 21. | Ovh Sas | 23 |
| 22. | Fastly, Inc. | 22 |
| 23. | Hutchison 3G UK Limited | 20 |
| 24. | M247 Ltd | 20 |
| 25. | Linode, LLC | 17 |
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.
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.
| ISP | Test count | IPv4 | IPv4 % | IPv6 | IPv6 % | |
|---|---|---|---|---|---|---|
| 1. | Unchained ISP Limited | 5 | 0 | 0.0% | 5 | 100.0% |
| 2. | Internetty Ltd | 6 | 0 | 0.0% | 6 | 100.0% |
| 3. | Contabo Asia Private Limited | 5 | 0 | 0.0% | 5 | 100.0% |
| 4. | Divergent Networks LTD | 5 | 0 | 0.0% | 5 | 100.0% |
| 5. | Securebit AG | 6 | 0 | 0.0% | 6 | 100.0% |
| 6. | Structured Comminications Global | 5 | 0 | 0.0% | 5 | 100.0% |
| 7. | The Constant Company | 129 | 2 | 1.6% | 127 | 98.4% |
| 8. | Hutchison 3G UK Limited | 27 | 2 | 7.4% | 25 | 92.6% |
| 9. | Bridge Fibre Limited | 13 | 1 | 7.7% | 12 | 92.3% |
| 10. | VMHaus - London | 12 | 1 | 8.3% | 11 | 91.7% |
| 11. | Mythic Beasts | 10 | 1 | 10.0% | 9 | 90.0% |
| 12. | Ionos Se | 16 | 2 | 12.5% | 14 | 87.5% |
| 13. | Leaseweb UK Limited | 8 | 1 | 12.5% | 7 | 87.5% |
| 14. | Grayshott Gigabit Limited | 30 | 4 | 13.3% | 26 | 86.7% |
| 15. | British Telecommunications PLC | 398 | 54 | 13.6% | 344 | 86.4% |
| 16. | Toob Limited | 57 | 8 | 14.0% | 49 | 86.0% |
| 17. | Google, LLC | 6 | 1 | 16.7% | 5 | 83.3% |
| 18. | Lit Fibre Group Ltd. | 12 | 2 | 16.7% | 10 | 83.3% |
| 19. | Aaisp | 18 | 3 | 16.7% | 15 | 83.3% |
| 20. | Infinity Developments Limited | 71 | 12 | 16.9% | 59 | 83.1% |
| 21. | Blix Solutions | 83 | 15 | 18.1% | 68 | 81.9% |
| 22. | Binary Racks Limited | 11 | 2 | 18.2% | 9 | 81.8% |
| 23. | Sky Broadband | 633 | 119 | 18.8% | 514 | 81.2% |
| 24. | FibreNest Subscribers | 10 | 2 | 20.0% | 8 | 80.0% |
| 25. | WightFibre Limited | 5 | 1 | 20.0% | 4 | 80.0% |
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.
| ISP | Test count | IPv6 average | |
|---|---|---|---|
| 1. | M12 Solutions | 72 | 531.3 Mbps |
| 2. | Toob Limited | 57 | 462.1 Mbps |
| 3. | Community Fibre Limited | 116 | 433.1 Mbps |
| 4. | 31173 Services AB | 34 | 339.4 Mbps |
| 5. | Grain Communications Limited | 9 | 253.3 Mbps |
| 6. | Trooli Ltd | 35 | 240.2 Mbps |
| 7. | Hyperoptic Ltd | 320 | 217.8 Mbps |
| 8. | Cloudflare, Inc. | 95 | 199.1 Mbps |
| 9. | Zen Internet Limited | 84 | 198.0 Mbps |
| 10. | British Telecommunications PLC | 398 | 177.3 Mbps |
| 11. | Jisc Services Limited | 13 | 169.3 Mbps |
| 12. | Lit Fibre Group Ltd. | 12 | 165.0 Mbps |
| 13. | Grayshott Gigabit Limited | 30 | 143.5 Mbps |
| 14. | Leaseweb UK Limited | 8 | 137.8 Mbps |
| 15. | Zen Internet Ltd | 252 | 124.2 Mbps |
| 16. | Bt Uk | 772 | 123.7 Mbps |
| 17. | Hurricane Electric LLC | 244 | 90.3 Mbps |
| 18. | SpaceX Starlink | 90 | 82.0 Mbps |
| 19. | Andrews & Arnold Ltd | 442 | 69.6 Mbps |
| 20. | Sky Broadband | 633 | 56.5 Mbps |
| 21. | Route48 | 82 | 43.5 Mbps |
| 22. | Virgin Media | 33 | 42.9 Mbps |
| 23. | Akamai Technologies, Inc. | 116 | 33.7 Mbps |
| 24. | Oracle Corporation | 58 | 31.4 Mbps |
| 25. | Fastly, Inc. | 35 | 31.3 Mbps |