| Property | Value |
| Name | Comcast Domains |
| Organization | Comcast Corporation |
| hostmaster@comcast.com | |
| Address | 1701 JFK Blvd. |
| Zip Code | 19103 |
| City | Philadelphia |
| State | PA |
| Country | US |
| Phone | +1.2152861700 |
| Fax | +1.2152861700 |
| NameServer | dns101.comcast.net |
| Created | 1997-09-25 04:00:00 |
| Changed | 2016-12-03 21:02:42 |
| Registrar | CSC CORPORATE DOMAIN |
| Date | IP Address |
| 2019-12-19 | 99.84.167.123 (ClassC) |
| 2019-12-19 | 99.84.167.126 (ClassC) |
| 2019-12-19 | 99.84.167.3 (ClassC) |
| 2019-12-19 | 99.84.167.85 (ClassC) |
| 2020-06-02 | 99.84.245.113 (ClassC) |
| 2020-06-02 | 99.84.245.115 (ClassC) |
| 2020-06-02 | 99.84.245.117 (ClassC) |
| 2020-06-02 | 99.84.245.67 (ClassC) |
| 2021-06-28 | 13.226.13.103 (ClassC) |
| 2022-09-03 | 13.33.165.85 (ClassC) |
| 2022-09-18 | 13.226.22.95 (ClassC) |
| 2024-05-22 | 108.138.94.80 (ClassC) |
| 2024-08-27 | 99.84.66.60 (ClassC) |
| 2024-12-11 | 13.224.14.63 (ClassC) |
| 2024-12-16 | 204.246.191.9 (ClassC) |
| 2025-02-17 | 13.224.14.84 (ClassC) |
| 2025-05-15 | 204.246.191.7 (ClassC) |
| 2025-07-13 | 204.246.191.61 (ClassC) |
| 2025-07-19 | 204.246.191.36 (ClassC) |
| Date | Domain | IP |
| api.prod01.xfinityspeedtest.comcast.net | 2019-10-24 | 13.224.2.102 |
| api.staging01.xfinityspeedtest.comcast.net | 2024-05-22 | 108.138.94.80 |
| api.int01.xfinityspeedtest.comcast.net | 2024-05-21 | 3.163.24.10 |
| api.dev01.xfinityspeedtest.comcast.net | 2022-07-08 | 108.156.91.2 |