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 | 381 |
| 2. | Sky Broadband | 276 |
| 3. | Community Fibre Limited | 199 |
| 4. | British Telecommunications PLC | 181 |
| 5. | Hurricane Electric LLC | 139 |
| 6. | Zen Internet Ltd | 133 |
| 7. | Andrews & Arnold Ltd | 113 |
| 8. | Hyperoptic Ltd | 100 |
| 9. | YouFibre Limited | 72 |
| 10. | Cloudflare, Inc. | 72 |
| 11. | Zen Internet Limited | 68 |
| 12. | M12 Solutions | 53 |
| 13. | SpaceX Starlink | 53 |
| 14. | Cityfibre Limited | 52 |
| 15. | Infinity Developments Limited | 52 |
| 16. | Google, LLC | 40 |
| 17. | Atomic Networks LLC | 40 |
| 18. | Toob Limited | 36 |
| 19. | Akamai Technologies, Inc. | 23 |
| 20. | Aaisp | 22 |
| 21. | Hutchison 3G UK Ltd | 21 |
| 22. | BRSK Limited | 18 |
| 23. | Midlands | 18 |
| 24. | Zzoomm plc | 16 |
| 25. | Gigaclear Limited | 16 |
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 | 257 |
| 2. | Sky Broadband | 169 |
| 3. | British Telecommunications PLC | 125 |
| 4. | Community Fibre Limited | 89 |
| 5. | Zen Internet Ltd | 83 |
| 6. | Hurricane Electric LLC | 71 |
| 7. | Andrews & Arnold Ltd | 65 |
| 8. | Cloudflare, Inc. | 61 |
| 9. | Hyperoptic Ltd | 51 |
| 10. | YouFibre Limited | 43 |
| 11. | SpaceX Starlink | 40 |
| 12. | Zen Internet Limited | 39 |
| 13. | Cityfibre Limited | 36 |
| 14. | M12 Solutions | 33 |
| 15. | Google, LLC | 32 |
| 16. | Infinity Developments Limited | 29 |
| 17. | Toob Limited | 27 |
| 18. | Akamai Technologies, Inc. | 18 |
| 19. | Hutchison 3G UK Ltd | 15 |
| 20. | Fastly, Inc. | 14 |
| 21. | BRSK Limited | 14 |
| 22. | Sky UK Limited | 10 |
| 23. | Aaisp | 9 |
| 24. | FibreNest Subscribers | 8 |
| 25. | Zzoomm plc | 8 |
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. | Sky UK Limited | 13 | 1 | 7.7% | 12 | 92.3% |
| 2. | Lee Wireless | 12 | 2 | 16.7% | 10 | 83.3% |
| 3. | Zzoomm plc | 16 | 3 | 18.8% | 13 | 81.3% |
| 4. | TxRx Communications Ltd | 5 | 1 | 20.0% | 4 | 80.0% |
| 5. | Trooli Ltd | 5 | 1 | 20.0% | 4 | 80.0% |
| 6. | Mega Cable | 5 | 1 | 20.0% | 4 | 80.0% |
| 7. | YouFibre Limited | 72 | 16 | 22.2% | 56 | 77.8% |
| 8. | Hyperoptic Ltd | 100 | 27 | 27.0% | 73 | 73.0% |
| 9. | M12 Solutions | 53 | 16 | 30.2% | 37 | 69.8% |
| 10. | Gigaclear Limited | 16 | 5 | 31.3% | 11 | 68.8% |
| 11. | Andrews & Arnold Ltd | 113 | 37 | 32.7% | 76 | 67.3% |
| 12. | Cloudflare, Inc. | 72 | 24 | 33.3% | 48 | 66.7% |
| 13. | TechVow Ltd - DevTest Labs | 6 | 2 | 33.3% | 4 | 66.7% |
| 14. | Atomic Networks LLC | 40 | 14 | 35.0% | 26 | 65.0% |
| 15. | Zen Internet Limited | 68 | 24 | 35.3% | 44 | 64.7% |
| 16. | Fastly, Inc. | 14 | 5 | 35.7% | 9 | 64.3% |
| 17. | British Telecommunications PLC | 181 | 66 | 36.5% | 115 | 63.5% |
| 18. | Hutchison 3G UK Ltd | 21 | 8 | 38.1% | 13 | 61.9% |
| 19. | Cityfibre Limited | 52 | 20 | 38.5% | 32 | 61.5% |
| 20. | Sky Broadband | 276 | 107 | 38.8% | 169 | 61.2% |
| 21. | Toob Limited | 36 | 14 | 38.9% | 22 | 61.1% |
| 22. | Akamai Technologies, Inc. | 23 | 9 | 39.1% | 14 | 60.9% |
| 23. | Hutchison 3G UK Limited | 5 | 2 | 40.0% | 3 | 60.0% |
| 24. | Squirrel Internet Ltd | 5 | 2 | 40.0% | 3 | 60.0% |
| 25. | Bt Uk | 381 | 155 | 40.7% | 226 | 59.3% |
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. | YouFibre Limited | 72 | 595.7 Mbps |
| 2. | M12 Solutions | 53 | 418.3 Mbps |
| 3. | Community Fibre Limited | 199 | 382.7 Mbps |
| 4. | Hyperoptic Ltd | 100 | 332.9 Mbps |
| 5. | Cityfibre Limited | 52 | 324.9 Mbps |
| 6. | British Telecommunications PLC | 181 | 242.8 Mbps |
| 7. | Cloudflare, Inc. | 72 | 152.7 Mbps |
| 8. | Zen Internet Ltd | 133 | 107.5 Mbps |
| 9. | Hurricane Electric LLC | 139 | 106.3 Mbps |
| 10. | Toob Limited | 36 | 98.9 Mbps |
| 11. | Zen Internet Limited | 68 | 95.6 Mbps |
| 12. | Andrews & Arnold Ltd | 113 | 76.7 Mbps |
| 13. | Ovh Sas | 14 | 67.0 Mbps |
| 14. | Bt Uk | 381 | 66.5 Mbps |
| 15. | SpaceX Starlink | 53 | 60.8 Mbps |
| 16. | Hutchison 3G UK Ltd | 21 | 58.9 Mbps |
| 17. | Sky Broadband | 276 | 48.4 Mbps |
| 18. | Infinity Developments Limited | 52 | 24.8 Mbps |
| 19. | Atomic Networks LLC | 40 | 24.6 Mbps |
| 20. | Mega Cable | 5 | 21.9 Mbps |
| 21. | Linode | 8 | 13.0 Mbps |
| 22. | Gigaclear Limited | 16 | 10.9 Mbps |
| 23. | Oracle Corporation | 12 | 8.9 Mbps |
| 24. | Squirrel Internet Ltd | 5 | 0.0 Mbps |
| 25. | FibreNest Subscribers | 9 | 0.0 Mbps |