| 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 |
| 2019-01-24 | 99.84.254.37 (ClassC) |
| 2019-01-24 | 99.84.254.95 (ClassC) |
| 2020-06-02 | 52.84.23.22 (ClassC) |
| 2020-06-02 | 52.84.23.55 (ClassC) |
| 2020-06-02 | 52.84.23.76 (ClassC) |
| 2020-06-02 | 52.84.23.16 (ClassC) |
| 2021-12-06 | 54.230.15.77 (ClassC) |
| 2021-12-06 | 54.230.15.115 (ClassC) |
| 2021-12-06 | 54.230.15.124 (ClassC) |
| 2023-04-22 | 52.84.18.112 (ClassC) |
| 2023-08-20 | 18.172.122.55 (ClassC) |
| 2024-05-21 | 3.163.24.10 (ClassC) |
| 2024-08-08 | 3.163.24.118 (ClassC) |
| 2024-08-23 | 18.238.217.95 (ClassC) |
| 2024-09-27 | 3.163.24.78 (ClassC) |
| 2024-12-11 | 3.165.160.107 (ClassC) |
| 2024-12-25 | 3.163.24.19 (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 |