Spoofing Information for AS 21575
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 | ||
|---|---|---|---|---|---|
| 132.191.0.x/24 | 2026-02-23 12:29:47 GMT | rewritten | rewritten | ||
| 132.191.1.x/24 | 2026-04-07 13:44:52 GMT | rewritten | rewritten | ||
| 132.191.2.x/24 | 2026-03-17 13:38:22 GMT | rewritten | rewritten | ||
| 132.251.0.x/24 | 2026-03-09 22:05:30 GMT | rewritten | rewritten | ||
| 132.251.1.x/24 | 2026-02-03 13:58:54 GMT | rewritten | rewritten | ||
| 132.251.2.x/24 | 2026-02-17 13:50:54 GMT | rewritten | rewritten | ||
| 132.251.90.x/24 | 2026-02-18 17:07:31 GMT | rewritten | rewritten | ||
| 186.160.39.x/24 | 2026-02-05 22:04:51 GMT | ✔ | blocked | ✔ | blocked |
Address Space Announcement History
The customer cone for 21575 is too large for a prefix list to be useful.