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. | Cellco Partnership DBA Verizon Wireless | 4,823 |
| 2. | Spectrum | 4,712 |
| 3. | Comcast Cable Communications, LLC | 4,550 |
| 4. | Hurricane Electric LLC | 1,955 |
| 5. | AT&T Services, Inc. | 1,737 |
| 6. | Sprint | 1,286 |
| 7. | Cox Communications Inc. | 946 |
| 8. | Google LLC | 839 |
| 9. | CenturyLink Communications, LLC | 712 |
| 10. | T-Mobile USA, Inc. | 483 |
| 11. | AT&T Mobility LLC | 353 |
| 12. | Choopa | 243 |
| 13. | Condointernet.net | 205 |
| 14. | Mediacom Communications Corp | 192 |
| 15. | RamNode LLC | 169 |
| 16. | Leaseweb USA, Inc. | 156 |
| 17. | QuadraNet Enterprises LLC | 149 |
| 18. | Google Fiber Inc. | 115 |
| 19. | Cloudflarewarp | 112 |
| 20. | tzulo, inc. | 101 |
| 21. | Linode, LLC | 87 |
| 22. | DigitalOcean, LLC | 83 |
| 23. | Quintex Alliance Consulting | 78 |
| 24. | Eonix Corporation | 76 |
| 25. | Wowrack.com | 71 |
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. | Cellco Partnership DBA Verizon Wireless | 3,908 |
| 2. | Comcast Cable Communications, LLC | 2,746 |
| 3. | Spectrum | 2,291 |
| 4. | AT&T Services, Inc. | 981 |
| 5. | Hurricane Electric LLC | 718 |
| 6. | Cox Communications Inc. | 487 |
| 7. | CenturyLink Communications, LLC | 380 |
| 8. | Sprint | 365 |
| 9. | T-Mobile USA, Inc. | 343 |
| 10. | AT&T Mobility LLC | 266 |
| 11. | Google LLC | 166 |
| 12. | Mediacom Communications Corp | 131 |
| 13. | Choopa | 127 |
| 14. | Google Fiber Inc. | 77 |
| 15. | Cogent Communications | 42 |
| 16. | Condointernet.net | 41 |
| 17. | Quintex Alliance Consulting | 40 |
| 18. | DigitalOcean, LLC | 36 |
| 19. | Frontier Communications Solutions | 34 |
| 20. | Emerald Onion | 31 |
| 21. | 31 | |
| 22. | Midcontinent Communications | 30 |
| 23. | Chinanet | 30 |
| 24. | IP6 SOLUTIONS d.o.o | 28 |
| 25. | Greenlight Networks | 25 |
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. | Arachnitec | 5 | 0 | 0.0% | 5 | 100.0% |
| 2. | 70 | 0 | 0.0% | 70 | 100.0% | |
| 3. | Facebook, Inc. | 5 | 0 | 0.0% | 5 | 100.0% |
| 4. | Netrouting Inc. | 53 | 0 | 0.0% | 53 | 100.0% |
| 5. | Facebook Inc | 9 | 0 | 0.0% | 9 | 100.0% |
| 6. | Kvchosting.com Llc | 46 | 0 | 0.0% | 46 | 100.0% |
| 7. | The Linux Fix | 45 | 0 | 0.0% | 45 | 100.0% |
| 8. | WestHost, Inc. | 54 | 0 | 0.0% | 54 | 100.0% |
| 9. | NetSpeed LLC | 9 | 0 | 0.0% | 9 | 100.0% |
| 10. | AxcelX Technologies LLC | 50 | 0 | 0.0% | 50 | 100.0% |
| 11. | Handy Networks | 38 | 0 | 0.0% | 38 | 100.0% |
| 12. | Micfo, LLC. | 5 | 0 | 0.0% | 5 | 100.0% |
| 13. | WholeSale Internet, Inc. | 14 | 0 | 0.0% | 14 | 100.0% |
| 14. | Yahoo! | 5 | 0 | 0.0% | 5 | 100.0% |
| 15. | State University of New York at Buffalo | 27 | 0 | 0.0% | 27 | 100.0% |
| 16. | CenturyLink Communications | 5 | 0 | 0.0% | 5 | 100.0% |
| 17. | Perfect International, Inc | 26 | 0 | 0.0% | 26 | 100.0% |
| 18. | The Optimal Link Corporation | 39 | 0 | 0.0% | 39 | 100.0% |
| 19. | Database by Design, LLC | 48 | 0 | 0.0% | 48 | 100.0% |
| 20. | University of Pennsylvania | 7 | 0 | 0.0% | 7 | 100.0% |
| 21. | FirstDigital Communications | 7 | 0 | 0.0% | 7 | 100.0% |
| 22. | HostUS | 5 | 0 | 0.0% | 5 | 100.0% |
| 23. | eNET Inc. | 33 | 0 | 0.0% | 33 | 100.0% |
| 24. | Hivelocity | 25 | 0 | 0.0% | 25 | 100.0% |
| 25. | H4Y Technologies LLC | 69 | 0 | 0.0% | 69 | 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. | Google LLC | 839 | 602.9 Mbps |
| 2. | Greenlight Networks | 63 | 227.2 Mbps |
| 3. | WestHost, Inc. | 54 | 211.0 Mbps |
| 4. | Microsoft Corp | 9 | 193.8 Mbps |
| 5. | CenturyLink Communications | 5 | 173.6 Mbps |
| 6. | Amazon Technologies Inc | 16 | 124.6 Mbps |
| 7. | Verizon Communications | 24 | 123.8 Mbps |
| 8. | Comcast Cable Communications, LLC | 4,550 | 103.2 Mbps |
| 9. | Netrouting Inc. | 53 | 93.6 Mbps |
| 10. | Sonoma Interconnect | 43 | 90.3 Mbps |
| 11. | Spectrum | 4,712 | 89.5 Mbps |
| 12. | Google Fiber Inc. | 115 | 84.7 Mbps |
| 13. | Webpass Inc. | 29 | 83.7 Mbps |
| 14. | LUMOS Networks, Inc. | 8 | 81.6 Mbps |
| 15. | Hancock Rural Telephone Corp. | 21 | 73.2 Mbps |
| 16. | 70 | 72.3 Mbps | |
| 17. | Cox Communications Inc. | 946 | 67.1 Mbps |
| 18. | Cogent Communications | 69 | 61.0 Mbps |
| 19. | AT&T Services, Inc. | 1,737 | 59.2 Mbps |
| 20. | Condointernet.net | 205 | 57.1 Mbps |
| 21. | Hurricane Electric LLC | 1,955 | 50.5 Mbps |
| 22. | CenturyLink Communications, LLC | 712 | 48.7 Mbps |
| 23. | Mediacom Communications Corp | 192 | 48.6 Mbps |
| 24. | Midcontinent Communications | 45 | 46.7 Mbps |
| 25. | Interserver | 9 | 46.5 Mbps |