Spoofing Information for AS 7922 (COMCAST-7922)
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 | ||
|---|---|---|---|---|---|
| 23.25.41.x/24 | 2025-11-17 17:04:46 GMT | blocked | blocked | ||
| 24.0.89.x/24 | 2025-07-03 16:42:17 GMT | rewritten | rewritten | ||
| 24.5.164.x/24 | 2025-06-10 20:15:38 GMT | rewritten | rewritten | ||
| 24.6.89.x/24 | 2025-01-31 09:05:00 GMT | blocked | blocked | ||
| 24.6.93.x/24 | 2025-09-10 03:30:58 GMT | blocked | blocked | ||
| 24.8.176.x/24 | 2025-01-15 23:18:28 GMT | rewritten | rewritten | ||
| 24.9.177.x/24 | 2025-01-28 18:50:32 GMT | rewritten | rewritten | ||
| 24.14.133.x/24 | 2025-12-06 00:33:04 GMT | rewritten | rewritten | ||
| 24.15.69.x/24 | 2025-04-15 16:13:05 GMT | blocked | blocked | ||
| 24.17.113.x/24 | 2025-10-29 04:04:50 GMT | blocked | blocked | ||
| 24.21.145.x/24 | 2025-12-03 10:52:01 GMT | blocked | blocked | ||
| 24.61.92.x/24 | 2025-05-31 00:02:22 GMT | rewritten | rewritten | ||
| 24.62.106.x/24 | 2025-07-10 23:01:42 GMT | blocked | blocked | ||
| 24.91.203.x/24 | 2025-10-08 01:16:53 GMT | rewritten | rewritten | ||
| 24.98.255.x/24 | 2025-02-28 22:13:55 GMT | blocked | blocked | ||
| 24.118.160.x/24 | 2025-12-07 23:37:32 GMT | rewritten | rewritten | ||
| 24.125.188.x/24 | 2025-01-07 17:07:00 GMT | blocked | blocked | ||
| 24.130.209.x/24 | 2025-01-11 22:46:56 GMT | rewritten | rewritten | ||
| 50.77.179.x/24 | 2025-02-04 16:01:13 GMT | blocked | blocked | ||
| 50.171.20.x/24 | 2025-05-07 03:18:42 GMT | blocked | blocked | ||
| 50.201.83.x/24 | 2025-05-19 00:25:11 GMT | blocked | blocked | ||
| 50.203.181.x/24 | 2025-06-18 12:51:44 GMT | blocked | blocked | ||
| 50.210.159.x/24 | 2025-06-05 13:41:57 GMT | blocked | blocked | ||
| 50.211.142.x/24 | 2025-07-17 14:58:53 GMT | blocked | rewritten | ||
| 50.218.203.x/24 | 2025-07-20 04:32:50 GMT | blocked | blocked | ||
| 50.219.234.x/24 | 2025-06-17 21:10:08 GMT | blocked | received | ||
| 50.222.175.x/24 | 2025-12-07 22:27:09 GMT | rewritten | rewritten | ||
| 50.232.224.x/24 | 2025-06-18 03:03:37 GMT | blocked | blocked | ||
| 50.235.108.x/24 | 2025-04-09 12:52:19 GMT | rewritten | ✔ | blocked | |
| 50.235.166.x/24 | 2025-05-15 13:15:11 GMT | blocked | blocked | ||
| 66.31.77.x/24 | 2025-05-07 19:46:20 GMT | blocked | blocked | ||
| 67.164.135.x/24 | 2025-09-25 19:35:45 GMT | rewritten | rewritten | ||
| 67.164.242.x/24 | 2025-10-30 16:11:14 GMT | blocked | blocked | ||
| 67.166.46.x/24 | 2025-08-23 06:30:56 GMT | rewritten | rewritten | ||
| 67.167.24.x/24 | 2024-12-23 03:16:46 GMT | blocked | blocked | ||
| 67.168.228.x/24 | 2024-12-21 15:41:52 GMT | blocked | blocked | ||
| 67.169.78.x/24 | 2025-03-08 16:58:51 GMT | blocked | blocked | ||
| 67.177.23.x/24 | 2025-10-06 20:08:03 GMT | rewritten | rewritten | ||
| 68.33.76.x/24 | 2025-05-17 20:59:47 GMT | rewritten | rewritten | ||
| 68.33.167.x/24 | 2025-10-19 04:00:56 GMT | rewritten | rewritten | ||
| 68.40.1.x/24 | 2025-09-26 05:18:58 GMT | rewritten | rewritten | ||
| 68.56.158.x/24 | 2025-10-10 19:59:15 GMT | rewritten | rewritten | ||
| 68.58.248.x/24 | 2025-03-10 23:22:56 GMT | rewritten | rewritten | ||
| 68.82.197.x/24 | 2025-02-15 00:09:01 GMT | blocked | blocked | ||
| 68.84.32.x/24 | 2025-01-31 17:16:30 GMT | blocked | blocked | ||
| 68.84.174.x/24 | 2025-02-22 20:03:59 GMT | rewritten | rewritten | ||
| 69.141.175.x/24 | 2025-12-09 21:49:01 GMT | blocked | blocked | ||
| 69.143.180.x/24 | 2025-08-29 22:35:14 GMT | rewritten | rewritten | ||
| 69.248.57.x/24 | 2025-04-11 16:13:08 GMT | rewritten | rewritten | ||
| 69.250.22.x/24 | 2025-12-06 16:31:54 GMT | rewritten | rewritten | ||
| 69.255.9.x/24 | 2025-12-05 15:13:06 GMT | rewritten | rewritten | ||
| 71.56.78.x/24 | 2025-07-11 18:45:47 GMT | blocked | blocked | ||
| 71.60.60.x/24 | 2024-12-26 04:26:09 GMT | rewritten | rewritten | ||
| 71.62.153.x/24 | 2025-03-11 22:01:50 GMT | rewritten | rewritten | ||
| 71.63.157.x/24 | 2025-04-20 05:47:56 GMT | rewritten | rewritten | ||
| 71.63.189.x/24 | 2025-02-21 01:05:32 GMT | rewritten | rewritten | ||
| 71.198.128.x/24 | 2025-12-07 21:04:58 GMT | blocked | blocked | ||
| 71.202.56.x/24 | 2025-10-25 04:56:59 GMT | blocked | blocked | ||
| 71.224.11.x/24 | 2025-03-18 14:41:05 GMT | rewritten | rewritten | ||
| 71.228.103.x/24 | 2025-03-14 23:58:10 GMT | rewritten | rewritten | ||
| 71.231.174.x/24 | 2024-12-13 21:43:16 GMT | rewritten | rewritten | ||
| 71.236.239.x/24 | 2025-06-05 23:21:49 GMT | blocked | blocked | ||
| 73.12.77.x/24 | 2025-12-07 21:49:53 GMT | rewritten | rewritten | ||
| 73.24.175.x/24 | 2025-05-30 21:00:51 GMT | rewritten | rewritten | ||
| 73.37.98.x/24 | 2025-09-16 14:00:33 GMT | blocked | blocked | ||
| 73.43.55.x/24 | 2025-06-24 18:51:44 GMT | blocked | blocked | ||
| 73.45.236.x/24 | 2025-10-29 14:11:07 GMT | rewritten | rewritten | ||
| 73.55.133.x/24 | 2025-09-11 17:25:07 GMT | blocked | blocked | ||
| 73.69.16.x/24 | 2025-12-08 06:01:14 GMT | rewritten | rewritten | ||
| 73.78.176.x/24 | 2025-03-28 02:53:50 GMT | rewritten | rewritten | ||
| 73.84.125.x/24 | 2025-12-09 21:52:29 GMT | rewritten | rewritten | ||
| 73.85.166.x/24 | 2025-02-27 08:13:31 GMT | rewritten | rewritten | ||
| 73.116.192.x/24 | 2024-12-25 17:40:24 GMT | rewritten | rewritten | ||
| 73.116.227.x/24 | 2025-01-19 02:13:33 GMT | rewritten | rewritten | ||
| 73.128.83.x/24 | 2025-11-29 03:03:07 GMT | rewritten | rewritten | ||
| 73.129.104.x/24 | 2025-12-08 13:21:27 GMT | blocked | blocked | ||
| 73.140.158.x/24 | 2025-10-17 16:45:38 GMT | blocked | blocked | ||
| 73.159.155.x/24 | 2025-11-14 20:20:33 GMT | blocked | blocked | ||
| 73.162.245.x/24 | 2025-10-22 01:19:59 GMT | blocked | blocked | ||
| 73.164.128.x/24 | 2025-03-08 10:02:02 GMT | rewritten | rewritten | ||
| 73.170.210.x/24 | 2025-01-15 21:18:06 GMT | rewritten | rewritten | ||
| 73.177.157.x/24 | 2025-12-07 17:09:16 GMT | rewritten | rewritten | ||
| 73.182.238.x/24 | 2025-04-19 03:33:41 GMT | rewritten | rewritten | ||
| 73.188.7.x/24 | 2025-04-20 20:55:30 GMT | rewritten | rewritten | ||
| 73.191.253.x/24 | 2025-12-07 03:03:42 GMT | rewritten | rewritten | ||
| 73.192.58.x/24 | 2025-12-04 21:42:03 GMT | rewritten | rewritten | ||
| 73.204.96.x/24 | 2025-08-15 23:49:13 GMT | rewritten | rewritten | ||
| 73.207.35.x/24 | 2025-10-17 19:17:20 GMT | blocked | blocked | ||
| 73.212.53.x/24 | 2025-05-26 04:14:21 GMT | rewritten | rewritten | ||
| 73.212.97.x/24 | 2025-07-14 23:51:24 GMT | rewritten | rewritten | ||
| 73.215.77.x/24 | 2025-05-11 15:34:43 GMT | rewritten | rewritten | ||
| 73.217.245.x/24 | 2025-05-22 02:40:25 GMT | rewritten | rewritten | ||
| 73.225.31.x/24 | 2025-07-19 08:41:44 GMT | rewritten | rewritten | ||
| 73.229.56.x/24 | 2025-05-12 21:02:32 GMT | rewritten | rewritten | ||
| 73.231.180.x/24 | 2025-12-06 16:20:14 GMT | rewritten | rewritten | ||
| 73.234.151.x/24 | 2025-05-24 10:59:57 GMT | blocked | blocked | ||
| 73.238.184.x/24 | 2024-12-26 23:38:23 GMT | rewritten | rewritten | ||
| 73.239.23.x/24 | 2025-06-23 16:04:45 GMT | rewritten | rewritten | ||
| 73.244.197.x/24 | 2025-10-31 19:58:57 GMT | rewritten | rewritten | ||
| 73.249.1.x/24 | 2025-08-14 13:54:30 GMT | rewritten | rewritten | ||
| 75.73.19.x/24 | 2025-12-03 22:09:18 GMT | blocked | blocked | ||
| 76.16.216.x/24 | 2025-06-05 22:43:53 GMT | rewritten | rewritten | ||
| 76.17.120.x/24 | 2025-01-07 17:38:24 GMT | blocked | blocked | ||
| 76.17.121.x/24 | 2025-01-07 20:39:46 GMT | blocked | blocked | ||
| 76.98.202.x/24 | 2024-12-18 13:52:32 GMT | blocked | blocked | ||
| 76.106.50.x/24 | 2025-10-12 22:03:57 GMT | rewritten | rewritten | ||
| 76.111.247.x/24 | 2025-06-15 23:37:32 GMT | rewritten | rewritten | ||
| 76.117.227.x/24 | 2025-09-26 16:40:52 GMT | rewritten | rewritten | ||
| 76.119.71.x/24 | 2025-11-29 09:11:54 GMT | blocked | blocked | ||
| 76.119.92.x/24 | 2025-03-22 14:38:46 GMT | blocked | blocked | ||
| 76.130.224.x/24 | 2025-01-15 17:07:41 GMT | rewritten | rewritten | ||
| 76.137.1.x/24 | 2025-03-13 16:04:24 GMT | rewritten | rewritten | ||
| 76.149.243.x/24 | 2025-04-15 00:24:00 GMT | rewritten | rewritten | ||
| 76.150.239.x/24 | 2024-12-14 05:55:34 GMT | blocked | blocked | ||
| 76.151.206.x/24 | 2025-11-02 00:47:40 GMT | rewritten | rewritten | ||
| 76.154.7.x/24 | 2025-12-03 14:59:12 GMT | rewritten | rewritten | ||
| 76.157.52.x/24 | 2025-12-02 15:51:57 GMT | blocked | blocked | ||
| 98.38.237.x/24 | 2025-04-06 08:02:47 GMT | rewritten | rewritten | ||
| 98.45.49.x/24 | 2025-09-21 14:16:04 GMT | rewritten | rewritten | ||
| 98.46.101.x/24 | 2025-06-04 22:48:21 GMT | blocked | blocked | ||
| 98.46.104.x/24 | 2025-12-09 16:59:38 GMT | blocked | blocked | ||
| 98.46.105.x/24 | 2025-11-30 15:52:50 GMT | blocked | blocked | ||
| 98.49.44.x/24 | 2024-12-23 19:34:59 GMT | rewritten | rewritten | ||
| 98.50.89.x/24 | 2025-12-07 22:35:06 GMT | rewritten | rewritten | ||
| 98.50.104.x/24 | 2024-12-14 08:59:34 GMT | blocked | blocked | ||
| 98.50.106.x/24 | 2024-12-17 20:18:25 GMT | blocked | blocked | ||
| 98.50.109.x/24 | 2025-01-19 00:07:56 GMT | blocked | blocked | ||
| 98.50.110.x/24 | 2025-01-26 04:35:20 GMT | blocked | blocked | ||
| 98.50.111.x/24 | 2025-01-22 16:40:08 GMT | blocked | blocked | ||
| 98.50.112.x/24 | 2025-03-26 06:06:23 GMT | blocked | blocked | ||
| 98.50.238.x/24 | 2025-02-26 00:49:43 GMT | rewritten | rewritten | ||
| 98.52.189.x/24 | 2025-05-13 19:38:55 GMT | rewritten | rewritten | ||
| 98.61.104.x/24 | 2025-07-18 02:13:51 GMT | blocked | blocked | ||
| 98.61.179.x/24 | 2025-07-06 14:07:23 GMT | rewritten | rewritten | ||
| 98.202.180.x/24 | 2025-04-25 02:57:48 GMT | rewritten | rewritten | ||
| 98.214.114.x/24 | 2025-08-31 05:16:19 GMT | rewritten | rewritten | ||
| 98.243.237.x/24 | 2025-04-14 23:05:42 GMT | rewritten | rewritten | ||
| 98.255.6.x/24 | 2024-12-31 22:53:00 GMT | rewritten | rewritten | ||
| 107.4.14.x/24 | 2025-09-05 01:16:45 GMT | rewritten | rewritten | ||
| 173.13.230.x/24 | 2025-03-20 21:32:03 GMT | blocked | blocked | ||
| 174.49.136.x/24 | 2025-03-18 20:19:36 GMT | rewritten | rewritten | ||
| 174.59.251.x/24 | 2025-01-26 22:01:07 GMT | rewritten | rewritten | ||
| 174.161.146.x/24 | 2025-10-30 00:23:38 GMT | rewritten | rewritten | ||
| 174.168.250.x/24 | 2025-05-27 13:59:09 GMT | rewritten | rewritten | ||
| 174.173.38.x/24 | 2025-08-09 04:40:35 GMT | rewritten | rewritten | ||
| 174.176.109.x/24 | 2025-02-03 20:49:17 GMT | rewritten | rewritten | ||
| 174.179.45.x/24 | 2025-09-04 13:31:25 GMT | rewritten | rewritten | ||
| 174.180.116.x/24 | 2025-08-10 15:55:14 GMT | blocked | blocked | ||
| 2601:41:c7xx::/40 | 2025-08-09 04:40:35 GMT | blocked | blocked | ||
| 2601:47:40xx::/40 | 2025-04-20 20:55:30 GMT | blocked | blocked | ||
| 2601:47:49xx::/40 | 2025-03-18 14:41:05 GMT | blocked | blocked | ||
| 2601:84:caxx::/40 | 2025-09-26 16:40:52 GMT | blocked | blocked | ||
| 2601:c2:xx::/40 | 2025-01-08 10:37:35 GMT | blocked | blocked | ||
| 2601:140:8fxx::/40 | 2025-11-29 03:03:07 GMT | blocked | blocked | ||
| 2601:14b:42xx::/40 | 2025-05-17 20:59:47 GMT | blocked | blocked | ||
| 2601:14b:45xx::/40 | 2025-05-26 04:14:21 GMT | blocked | blocked | ||
| 2601:14b:49xx::/40 | 2025-12-05 15:13:06 GMT | blocked | blocked | ||
| 2601:14d:4fxx::/40 | 2025-06-20 15:15:33 GMT | blocked | blocked | ||
| 2601:155:1xx::/40 | 2025-07-14 23:51:24 GMT | blocked | blocked | ||
| 2601:184:3xx::/40 | 2025-03-22 14:38:46 GMT | blocked | blocked | ||
| 2601:188:ccxx::/40 | 2025-10-08 01:16:53 GMT | blocked | blocked | ||
| 2601:18a:80xx::/40 | 2025-07-10 23:01:42 GMT | blocked | blocked | ||
| 2601:18c:82xx::/40 | 2025-04-19 03:33:41 GMT | blocked | blocked | ||
| 2601:18c:88xx::/40 | 2025-11-29 21:06:56 GMT | blocked | blocked | ||
| 2601:18c:8axx::/40 | 2025-11-25 06:15:54 GMT | blocked | blocked | ||
| 2601:19e:82xx::/40 | 2025-05-27 13:59:09 GMT | blocked | blocked | ||
| 2601:1c0:42xx::/40 | 2025-04-20 05:47:56 GMT | blocked | blocked | ||
| 2601:1c0:44xx::/40 | 2025-06-05 23:21:49 GMT | blocked | blocked | ||
| 2601:1c0:45xx::/40 | 2025-12-03 10:52:01 GMT | blocked | blocked | ||
| 2601:1c2:c1xx::/40 | 2025-02-21 01:05:32 GMT | blocked | blocked | ||
| 2601:204:c5xx::/40 | 2024-12-31 22:53:00 GMT | blocked | blocked | ||
| 2601:240:c4xx::/40 | 2025-05-07 13:23:05 GMT | blocked | blocked | ||
| 2601:240:c9xx::/40 | 2025-11-07 09:47:08 GMT | blocked | blocked | ||
| 2601:240:cdxx::/40 | 2025-12-02 15:51:57 GMT | blocked | blocked | ||
| 2601:243:2xx::/40 | 2025-06-05 22:43:53 GMT | blocked | blocked | ||
| 2601:246:c9xx::/40 | 2025-04-29 18:26:51 GMT | blocked | blocked | ||
| 2601:247:41xx::/40 | 2025-05-03 21:41:44 GMT | blocked | blocked | ||
| 2601:280:cbxx::/40 | 2025-01-26 04:35:20 GMT | blocked | blocked | ||
| 2601:281:daxx::/40 | 2025-04-06 08:02:47 GMT | blocked | blocked | ||
| 2601:282:7xx::/40 | 2025-01-28 18:50:32 GMT | blocked | blocked | ||
| 2601:282:cxx::/40 | 2025-03-28 02:53:50 GMT | blocked | blocked | ||
| 2601:282:1fxx::/40 | 2025-02-23 20:19:43 GMT | blocked | blocked | ||
| 2601:283:4fxx::/40 | 2025-12-05 16:23:22 GMT | blocked | blocked | ||
| 2601:300:40xx::/40 | 2025-04-29 00:04:45 GMT | blocked | blocked | ||
| 2601:3cb:bxx::/40 | 2025-10-30 00:23:38 GMT | blocked | blocked | ||
| 2601:406:46xx::/40 | 2025-02-22 20:03:59 GMT | blocked | blocked | ||
| 2601:40d:43xx::/40 | 2025-04-14 23:05:42 GMT | blocked | blocked | ||
| 2601:441:42xx::/40 | 2025-05-04 02:51:52 GMT | blocked | blocked | ||
| 2601:500:87xx::/40 | 2025-05-30 21:00:51 GMT | blocked | blocked | ||
| 2601:584:c3xx::/40 | 2025-02-25 02:08:57 GMT | blocked | blocked | ||
| 2601:586:c5xx::/40 | 2025-06-15 23:37:32 GMT | blocked | blocked | ||
| 2601:586:cfxx::/40 | 2025-10-31 19:58:57 GMT | blocked | blocked | ||
| 2601:58a:80xx::/40 | 2025-12-09 21:52:29 GMT | blocked | blocked | ||
| 2601:58b:48xx::/40 | 2025-05-04 23:34:16 GMT | blocked | blocked | ||
| 2601:5cf:41xx::/40 | 2025-11-07 03:19:36 GMT | blocked | blocked | ||
| 2601:602:92xx::/40 | 2025-07-19 08:41:44 GMT | blocked | blocked | ||
| 2601:603:7xx::/40 | 2024-12-13 21:43:16 GMT | blocked | blocked | ||
| 2601:640:8cxx::/40 | 2025-06-13 07:54:11 GMT | blocked | blocked | ||
| 2601:643:80xx::/40 | 2025-12-06 16:20:14 GMT | blocked | blocked | ||
| 2601:643:85xx::/40 | 2025-10-22 01:19:59 GMT | blocked | blocked | ||
| 2601:643:8exx::/40 | 2025-09-21 14:16:04 GMT | blocked | blocked | ||
| 2601:644:41xx::/40 | 2025-02-15 01:26:23 GMT | blocked | blocked | ||
| 2601:647:4dxx::/40 | 2024-12-28 03:57:17 GMT | blocked | blocked | ||
| 2601:680:c5xx::/40 | 2025-01-13 03:04:46 GMT | blocked | blocked | ||
| 2601:681:83xx::/40 | 2025-04-15 00:24:00 GMT | blocked | blocked | ||
| 2601:8c0:xx::/40 | 2025-03-14 23:58:10 GMT | blocked | blocked | ||
| 2601:8c0:2xx::/40 | 2025-09-25 19:35:45 GMT | blocked | blocked | ||
| 2601:988:c2xx::/40 | 2025-01-26 22:01:07 GMT | blocked | blocked | ||
| 2603:3007:axx::/40 | 2024-12-23 19:34:59 GMT | blocked | blocked | ||
Customers of AS 7922 we have spoofer tests from
This is the list of directly connected customers of AS 7922 from which we have received a spoofer test, ordered by the customer's ability to send spoofed packets and the number of prefixes of an inferred ingress ACL derived from prefix announcements for the customer recorded in the latest month of public BGP data. BCP-84 describes ingress ACLs as "the most bulletproof solution when done properly" and the "best fit ... when the configuration is not too dynamic, ... if the number of used prefixes is low." Further detail about the size and dynamism of an inferred ACL is available by following the History link for each AS.
| ASN | Country | Number of Prefixes in Customer Cone | Number of ASes in Customer Cone | Recent tests | Spoof Routable | 16276 (OVH) | usa (United States) | 1569 | 210 | AS 16276 tests | blocked | 60068 (CDN77) | usa (United States) | 85990 | 6906 | AS 60068 tests | blocked |
|---|
Address Space Announcement History
The customer cone for 7922 is too large for a prefix list to be useful.