IPv6 in United StatesThese graphs show the evolution of default protocol, v6 address types, and average bandwidth in United States 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. | Spectrum | 4,846 |
| 2. | Google LLC | 4,563 |
| 3. | Comcast Cable Communications | 3,816 |
| 4. | Cellco Partnership DBA Verizon Wireless | 2,507 |
| 5. | Hurricane Electric LLC | 1,969 |
| 6. | Comcast Cable Communications, LLC | 1,851 |
| 7. | AT&T Internet Services | 1,439 |
| 8. | Cox Communications Inc. | 1,076 |
| 9. | AT&T Services, Inc. | 702 |
| 10. | CenturyLink | 453 |
| 11. | Hurricane Electric | 394 |
| 12. | Sprint | 376 |
| 13. | T-Mobile USA | 330 |
| 14. | AT&T Mobility LLC | 328 |
| 15. | Choopa | 305 |
| 16. | CenturyLink Communications, LLC | 261 |
| 17. | Mediacom Communications Corp | 201 |
| 18. | T-Mobile USA, Inc. | 196 |
| 19. | Midcontinent Communications | 154 |
| 20. | Google Fiber Inc. | 152 |
| 21. | Linode | 106 |
| 22. | Digital Ocean | 94 |
| 23. | DigitalOcean, LLC | 85 |
| 24. | State University of New York at Buffalo | 68 |
| 25. | 64 |
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. | Spectrum | 2,317 |
| 2. | Comcast Cable Communications | 2,206 |
| 3. | Cellco Partnership DBA Verizon Wireless | 1,992 |
| 4. | Comcast Cable Communications, LLC | 1,000 |
| 5. | Hurricane Electric LLC | 700 |
| 6. | AT&T Internet Services | 674 |
| 7. | Cox Communications Inc. | 570 |
| 8. | AT&T Services, Inc. | 300 |
| 9. | T-Mobile USA | 269 |
| 10. | Sprint | 253 |
| 11. | CenturyLink | 241 |
| 12. | AT&T Mobility LLC | 223 |
| 13. | Hurricane Electric | 207 |
| 14. | T-Mobile USA, Inc. | 163 |
| 15. | CenturyLink Communications, LLC | 149 |
| 16. | Choopa | 146 |
| 17. | Google LLC | 125 |
| 18. | Mediacom Communications Corp | 123 |
| 19. | Google Fiber Inc. | 95 |
| 20. | Midcontinent Communications | 73 |
| 21. | Digital Ocean | 56 |
| 22. | State University of New York at Buffalo | 38 |
| 23. | 37 | |
| 24. | M247 Ltd | 36 |
| 25. | CT Networks | 35 |
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. | Ovh Sas | 8 | 0 | 0.0% | 8 | 100.0% |
| 2. | So-net Entertainment Corporation | 16 | 0 | 0.0% | 16 | 100.0% |
| 3. | The Optimal Link Corporation | 30 | 0 | 0.0% | 30 | 100.0% |
| 4. | AxcelX Technologies LLC | 16 | 0 | 0.0% | 16 | 100.0% |
| 5. | US Dedicated | 20 | 0 | 0.0% | 20 | 100.0% |
| 6. | Zcorum | 24 | 0 | 0.0% | 24 | 100.0% |
| 7. | Internet2 | 7 | 0 | 0.0% | 7 | 100.0% |
| 8. | Everythink Innovations Limited | 6 | 0 | 0.0% | 6 | 100.0% |
| 9. | University of Minnesota | 8 | 0 | 0.0% | 8 | 100.0% |
| 10. | Contabo GmbH | 6 | 0 | 0.0% | 6 | 100.0% |
| 11. | LogicWeb Inc. | 5 | 0 | 0.0% | 5 | 100.0% |
| 12. | Facebook Inc | 11 | 0 | 0.0% | 11 | 100.0% |
| 13. | AT&T Services | 23 | 0 | 0.0% | 23 | 100.0% |
| 14. | Nato Research Ltd. | 5 | 0 | 0.0% | 5 | 100.0% |
| 15. | Hinet Twnic | 6 | 0 | 0.0% | 6 | 100.0% |
| 16. | Starry | 29 | 0 | 0.0% | 29 | 100.0% |
| 17. | H4Y Technologies LLC | 36 | 0 | 0.0% | 36 | 100.0% |
| 18. | Hughes Network Systems | 10 | 0 | 0.0% | 10 | 100.0% |
| 19. | WestHost | 7 | 0 | 0.0% | 7 | 100.0% |
| 20. | Psychz Networks | 6 | 0 | 0.0% | 6 | 100.0% |
| 21. | Portage Public Schools | 6 | 0 | 0.0% | 6 | 100.0% |
| 22. | Database by Design, LLC | 7 | 0 | 0.0% | 7 | 100.0% |
| 23. | Eonix Corporation | 15 | 0 | 0.0% | 15 | 100.0% |
| 24. | WholeSale Internet, Inc. | 5 | 0 | 0.0% | 5 | 100.0% |
| 25. | QuadraNet Enterprises LLC | 26 | 0 | 0.0% | 26 | 100.0% |
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. | State University of New York at Buffalo | 68 | 496.4 Mbps |
| 2. | Google LLC | 4,563 | 373.0 Mbps |
| 3. | 64 | 102.5 Mbps | |
| 4. | Spectrum | 4,846 | 102.2 Mbps |
| 5. | Comcast Cable Communications | 3,816 | 97.8 Mbps |
| 6. | Cox Communications Inc. | 1,076 | 94.0 Mbps |
| 7. | Apple Inc. | 8 | 90.2 Mbps |
| 8. | Amazon.com | 47 | 89.4 Mbps |
| 9. | WiscNet | 11 | 89.0 Mbps |
| 10. | Verizon Communications | 57 | 88.7 Mbps |
| 11. | Webpass Inc. | 34 | 87.6 Mbps |
| 12. | Mediacom Communications Corp | 201 | 83.2 Mbps |
| 13. | Comcast Cable Communications, LLC | 1,851 | 82.9 Mbps |
| 14. | Linode | 106 | 81.7 Mbps |
| 15. | AT&T Internet Services | 1,439 | 79.8 Mbps |
| 16. | University of Minnesota | 8 | 74.3 Mbps |
| 17. | Google Fiber Inc. | 152 | 73.8 Mbps |
| 18. | DigitalOcean, LLC | 85 | 70.1 Mbps |
| 19. | University of Pennsylvania | 15 | 69.6 Mbps |
| 20. | Upc Pl | 9 | 68.2 Mbps |
| 21. | CenturyLink Communications, LLC | 261 | 67.3 Mbps |
| 22. | Midcontinent Communications | 154 | 66.9 Mbps |
| 23. | AT&T Services, Inc. | 702 | 66.5 Mbps |
| 24. | CenturyLink | 453 | 63.7 Mbps |
| 25. | Amazon Technologies Inc | 21 | 63.0 Mbps |