Spoofing Information for AS 209 (CENTURYLINK-US-LEGACY-QWEST)
Spoofing status per IP block for last year of data
(Results for all dates also available.)| Spoof status key | ||||
|---|---|---|---|---|
| received | Spoofed packet was received. | ✔ | Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. | |
| rewritten | Spoofed packet was received, but the source address was changed en route. | |||
| blocked | Spoofed packet was not received, but unspoofed packet was. | |||
| unknown | Neither spoofed nor unspoofed packet was received. | |||
| IP block | Latest test | Spoof Private | Spoof Routable | ||
|---|---|---|---|---|---|
| 65.128.96.x/24 | 2026-05-28 10:38:50 GMT | blocked | blocked | ||
| 71.212.14.x/24 | 2025-12-27 04:46:31 GMT | rewritten | blocked | ||
| 71.212.215.x/24 | 2025-12-29 01:53:25 GMT | blocked | blocked | ||
| 71.212.218.x/24 | 2026-04-23 21:56:29 GMT | blocked | blocked | ||
| 75.168.228.x/24 | 2026-04-11 23:44:04 GMT | blocked | blocked | ||
| 97.113.13.x/24 | 2025-10-10 03:45:19 GMT | rewritten | blocked | ||
| 97.113.24.x/24 | 2026-04-04 18:44:15 GMT | rewritten | blocked | ||
| 97.113.29.x/24 | 2026-04-12 07:58:08 GMT | rewritten | blocked | ||
| 97.113.160.x/24 | 2025-07-01 11:22:05 GMT | rewritten | blocked | ||
| 97.113.164.x/24 | 2025-11-21 04:39:47 GMT | rewritten | blocked | ||
| 97.113.173.x/24 | 2025-07-18 13:20:20 GMT | rewritten | blocked | ||
| 97.113.181.x/24 | 2025-08-01 16:47:48 GMT | rewritten | blocked | ||
| 97.113.186.x/24 | 2025-09-24 20:56:48 GMT | rewritten | blocked | ||
| 97.113.189.x/24 | 2025-06-23 20:17:00 GMT | rewritten | blocked | ||
| 97.116.188.x/24 | 2026-06-19 05:19:29 GMT | blocked | blocked | ||
| 97.119.176.x/24 | 2025-06-27 14:12:18 GMT | rewritten | rewritten | ||
| 97.125.35.x/24 | 2026-06-14 08:21:01 GMT | rewritten | rewritten | ||
| 97.126.163.x/24 | 2026-06-02 03:24:29 GMT | blocked | blocked | ||
| 97.126.186.x/24 | 2026-04-04 16:41:57 GMT | blocked | blocked | ||
| 97.126.187.x/24 | 2026-06-14 03:29:47 GMT | blocked | blocked | ||
| 174.20.242.x/24 | 2026-05-21 08:32:01 GMT | blocked | blocked | ||
| 174.20.250.x/24 | 2026-03-14 20:15:03 GMT | blocked | blocked | ||
| 174.21.9.x/24 | 2026-01-12 02:11:42 GMT | blocked | blocked | ||
| 204.98.75.x/24 | 2025-10-02 19:11:02 GMT | blocked | blocked | ||
| 2602:61:77xx::/40 | 2025-06-27 14:12:18 GMT | blocked | blocked | ||
Address Space Announcement History
The customer cone for 209 is too large for a prefix list to be useful.