Spoofing Information for AS 4230
Spoofing status per IP block (all dates)
| 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 | ||
|---|---|---|---|---|---|
| 179.68.194.x/24 | 2024-07-25 16:09:43 GMT | rewritten | rewritten | ||
| 179.68.195.x/24 | 2024-07-06 17:41:13 GMT | blocked | blocked | ||
| 179.68.211.x/24 | 2024-07-01 12:57:39 GMT | blocked | blocked | ||
| 179.68.212.x/24 | 2024-06-24 21:58:25 GMT | blocked | blocked | ||
| 187.28.50.x/24 | 2018-12-04 18:18:13 GMT | blocked | blocked | ||
| 187.28.167.x/24 | 2019-02-23 13:39:29 GMT | rewritten | rewritten | ||
| 187.29.160.x/24 | 2021-09-02 12:52:02 GMT | blocked | blocked | ||
| 187.43.129.x/24 | 2024-04-28 17:16:15 GMT | blocked | blocked | ||
| 187.43.131.x/24 | 2024-03-18 13:03:10 GMT | rewritten | rewritten | ||
| 187.43.140.x/24 | 2024-04-10 18:09:51 GMT | blocked | blocked | ||
| 187.43.141.x/24 | 2024-03-28 20:45:41 GMT | blocked | blocked | ||
| 187.43.143.x/24 | 2024-04-02 20:51:35 GMT | rewritten | rewritten | ||
| 187.43.147.x/24 | 2024-02-29 14:52:31 GMT | rewritten | rewritten | ||
| 187.43.154.x/24 | 2024-05-15 02:49:34 GMT | blocked | blocked | ||
| 187.43.161.x/24 | 2024-07-08 11:53:56 GMT | rewritten | rewritten | ||
| 187.43.172.x/24 | 2024-01-05 19:47:30 GMT | blocked | blocked | ||
| 187.43.173.x/24 | 2024-07-17 12:55:46 GMT | rewritten | rewritten | ||
| 187.43.178.x/24 | 2024-07-09 14:28:23 GMT | rewritten | rewritten | ||
| 187.43.191.x/24 | 2024-07-12 14:11:28 GMT | rewritten | rewritten | ||
| 187.43.192.x/24 | 2024-06-27 12:20:17 GMT | rewritten | rewritten | ||
| 187.43.200.x/24 | 2024-07-07 17:15:14 GMT | rewritten | rewritten | ||
| 187.43.222.x/24 | 2024-05-28 12:41:00 GMT | rewritten | rewritten | ||
| 189.2.193.x/24 | 2024-07-24 18:02:12 GMT | blocked | blocked | ||
| 189.2.200.x/24 | 2019-05-02 11:07:52 GMT | blocked | blocked | ||
| 189.3.177.x/24 | 2023-02-28 20:24:26 GMT | blocked | blocked | ||
| 189.3.205.x/24 | 2020-06-16 13:31:19 GMT | blocked | blocked | ||
| 189.3.216.x/24 | 2017-09-19 00:30:08 GMT | rewritten | rewritten | ||
| 189.3.255.x/24 | 2020-06-10 11:22:15 GMT | blocked | blocked | ||
| 189.16.117.x/24 | 2020-03-02 14:31:20 GMT | blocked | blocked | ||
| 189.16.122.x/24 | 2023-10-03 15:54:04 GMT | blocked | received | ||
| 189.16.195.x/24 | 2021-08-31 19:26:10 GMT | blocked | blocked | ||
| 189.22.75.x/24 | 2022-01-05 19:39:32 GMT | blocked | blocked | ||
| 189.42.140.x/24 | 2019-10-02 12:35:30 GMT | blocked | blocked | ||
| 189.42.147.x/24 | 2023-06-02 03:33:51 GMT | rewritten | rewritten | ||
| 189.52.136.x/24 | 2023-04-25 16:56:25 GMT | blocked | received | ||
| 191.39.72.x/24 | 2024-04-23 16:09:49 GMT | rewritten | rewritten | ||
| 191.39.141.x/24 | 2024-06-13 15:40:58 GMT | blocked | blocked | ||
| 191.39.142.x/24 | 2024-04-02 14:19:10 GMT | rewritten | rewritten | ||
| 191.39.149.x/24 | 2024-07-18 21:39:25 GMT | blocked | blocked | ||
| 191.39.159.x/24 | 2024-04-23 20:35:31 GMT | rewritten | rewritten | ||
| 191.56.144.x/24 | 2024-01-14 18:26:00 GMT | rewritten | rewritten | ||
| 191.56.145.x/24 | 2023-12-20 15:19:15 GMT | rewritten | rewritten | ||
| 191.56.146.x/24 | 2024-04-30 12:59:36 GMT | rewritten | rewritten | ||
| 191.56.147.x/24 | 2024-03-20 18:54:27 GMT | rewritten | rewritten | ||
| 191.56.148.x/24 | 2024-07-26 19:23:00 GMT | rewritten | rewritten | ||
| 191.56.149.x/24 | 2023-12-22 19:15:12 GMT | rewritten | rewritten | ||
| 191.56.240.x/24 | 2024-07-11 14:50:59 GMT | rewritten | rewritten | ||
| 191.56.242.x/24 | 2024-07-11 20:13:20 GMT | rewritten | rewritten | ||
| 191.56.246.x/24 | 2023-12-01 00:06:31 GMT | rewritten | rewritten | ||
| 191.56.247.x/24 | 2024-04-27 19:00:03 GMT | rewritten | rewritten | ||
| 191.57.1.x/24 | 2024-04-06 10:12:55 GMT | blocked | blocked | ||
| 191.57.13.x/24 | 2024-04-06 09:46:31 GMT | blocked | blocked | ||
| 191.57.23.x/24 | 2023-06-15 21:05:58 GMT | rewritten | rewritten | ||
| 191.57.24.x/24 | 2024-06-17 20:51:03 GMT | blocked | blocked | ||
| 191.57.27.x/24 | 2023-04-26 14:57:57 GMT | rewritten | rewritten | ||
| 191.57.28.x/24 | 2023-08-11 16:03:53 GMT | blocked | blocked | ||
| 191.57.161.x/24 | 2023-12-07 17:24:05 GMT | rewritten | rewritten | ||
| 191.57.165.x/24 | 2023-11-04 19:19:58 GMT | rewritten | rewritten | ||
| 191.57.168.x/24 | 2024-06-18 17:54:21 GMT | rewritten | rewritten | ||
| 191.57.169.x/24 | 2023-09-16 17:40:13 GMT | rewritten | rewritten | ||
| 191.57.176.x/24 | 2024-06-10 12:59:30 GMT | rewritten | rewritten | ||
| 191.57.177.x/24 | 2023-05-30 21:28:07 GMT | rewritten | rewritten | ||
| 191.57.179.x/24 | 2024-07-02 23:01:18 GMT | rewritten | rewritten | ||
| 191.57.183.x/24 | 2023-12-15 12:27:03 GMT | rewritten | rewritten | ||
| 191.57.187.x/24 | 2024-06-07 21:45:41 GMT | rewritten | rewritten | ||
| 191.57.188.x/24 | 2023-08-27 15:18:43 GMT | rewritten | rewritten | ||
| 191.57.216.x/24 | 2023-06-19 18:40:43 GMT | rewritten | rewritten | ||
| 191.57.219.x/24 | 2023-07-20 19:45:06 GMT | rewritten | rewritten | ||
| 191.58.64.x/24 | 2023-12-20 14:41:12 GMT | rewritten | rewritten | ||
| 191.58.66.x/24 | 2023-12-14 20:32:35 GMT | rewritten | rewritten | ||
| 191.58.68.x/24 | 2024-05-27 23:44:54 GMT | rewritten | rewritten | ||
| 191.58.70.x/24 | 2024-02-14 21:52:55 GMT | rewritten | rewritten | ||
| 191.58.77.x/24 | 2023-11-01 23:21:09 GMT | rewritten | rewritten | ||
| 191.58.108.x/24 | 2023-12-27 16:20:33 GMT | rewritten | rewritten | ||
| 191.58.142.x/24 | 2024-06-26 18:07:11 GMT | rewritten | rewritten | ||
| 191.58.151.x/24 | 2024-07-19 12:59:37 GMT | blocked | blocked | ||
| 191.59.104.x/24 | 2024-06-05 13:19:57 GMT | rewritten | rewritten | ||
| 191.59.108.x/24 | 2024-05-22 12:22:44 GMT | rewritten | rewritten | ||
| 200.166.138.x/24 | 2019-11-13 21:47:53 GMT | blocked | blocked | ||
| 200.166.195.x/24 | 2023-12-03 20:06:01 GMT | blocked | blocked | ||
| 200.166.197.x/24 | 2017-03-23 15:58:28 GMT | rewritten | ✔ | blocked | |
| 200.167.67.x/24 | 2021-06-28 15:14:51 GMT | rewritten | rewritten | ||
| 200.173.48.x/24 | 2024-06-05 20:28:41 GMT | rewritten | rewritten | ||
| 200.173.49.x/24 | 2024-03-21 14:13:10 GMT | rewritten | rewritten | ||
| 200.173.52.x/24 | 2021-08-19 12:58:28 GMT | rewritten | rewritten | ||
| 200.173.53.x/24 | 2022-05-09 11:49:11 GMT | rewritten | rewritten | ||
| 200.173.54.x/24 | 2021-12-10 02:27:19 GMT | rewritten | rewritten | ||
| 200.173.56.x/24 | 2021-12-09 00:38:37 GMT | rewritten | rewritten | ||
| 200.173.84.x/24 | 2023-12-04 12:14:01 GMT | rewritten | rewritten | ||
| 200.173.85.x/24 | 2024-06-13 20:20:57 GMT | rewritten | rewritten | ||
| 200.173.86.x/24 | 2022-07-12 23:00:01 GMT | rewritten | rewritten | ||
| 200.173.87.x/24 | 2023-04-24 13:16:28 GMT | rewritten | rewritten | ||
| 200.173.160.x/24 | 2022-09-15 17:48:36 GMT | rewritten | rewritten | ||
| 200.173.162.x/24 | 2022-05-25 22:41:19 GMT | rewritten | rewritten | ||
| 200.173.163.x/24 | 2023-08-07 20:55:02 GMT | rewritten | rewritten | ||
| 200.173.165.x/24 | 2023-08-04 00:56:18 GMT | rewritten | rewritten | ||
| 200.173.170.x/24 | 2022-03-10 12:11:50 GMT | rewritten | rewritten | ||
| 200.173.173.x/24 | 2021-08-19 16:47:56 GMT | rewritten | rewritten | ||
| 200.173.176.x/24 | 2022-06-29 11:13:09 GMT | rewritten | rewritten | ||
| 200.173.180.x/24 | 2024-06-13 19:07:23 GMT | rewritten | rewritten | ||
| 200.173.183.x/24 | 2023-10-02 17:25:57 GMT | rewritten | rewritten | ||
| 200.173.184.x/24 | 2022-03-08 12:14:33 GMT | rewritten | rewritten | ||
| 200.173.185.x/24 | 2022-01-18 17:24:45 GMT | rewritten | rewritten | ||
| 200.173.196.x/24 | 2023-09-08 13:08:42 GMT | rewritten | rewritten | ||
| 200.173.208.x/24 | 2023-03-16 20:08:22 GMT | rewritten | rewritten | ||
| 200.173.212.x/24 | 2024-04-02 02:47:39 GMT | rewritten | rewritten | ||
| 200.173.213.x/24 | 2023-02-26 19:48:23 GMT | rewritten | rewritten | ||
| 200.173.215.x/24 | 2023-12-04 16:51:14 GMT | rewritten | rewritten | ||
| 200.173.216.x/24 | 2022-02-24 22:26:23 GMT | rewritten | rewritten | ||
| 200.173.217.x/24 | 2022-06-01 23:02:14 GMT | rewritten | rewritten | ||
| 200.173.218.x/24 | 2021-11-12 14:31:12 GMT | rewritten | rewritten | ||
| 200.173.220.x/24 | 2023-06-30 00:08:01 GMT | rewritten | rewritten | ||
| 200.173.222.x/24 | 2022-01-25 00:48:48 GMT | rewritten | rewritten | ||
| 200.173.224.x/24 | 2023-12-14 13:06:02 GMT | rewritten | rewritten | ||
| 200.173.227.x/24 | 2023-02-08 15:05:34 GMT | rewritten | rewritten | ||
| 200.173.228.x/24 | 2022-02-01 13:11:50 GMT | rewritten | rewritten | ||
| 200.173.229.x/24 | 2021-10-27 15:55:15 GMT | rewritten | rewritten | ||
| 200.173.230.x/24 | 2022-02-16 16:55:25 GMT | rewritten | rewritten | ||
| 200.173.233.x/24 | 2024-01-17 11:10:23 GMT | rewritten | rewritten | ||
| 200.173.236.x/24 | 2022-03-09 04:24:52 GMT | rewritten | rewritten | ||
| 200.173.237.x/24 | 2022-10-03 23:53:00 GMT | rewritten | rewritten | ||
| 200.173.241.x/24 | 2024-02-14 12:50:38 GMT | rewritten | rewritten | ||
| 200.173.243.x/24 | 2023-05-19 14:08:52 GMT | rewritten | rewritten | ||
| 200.173.244.x/24 | 2023-04-24 19:03:39 GMT | rewritten | rewritten | ||
| 200.173.245.x/24 | 2024-02-09 14:58:49 GMT | rewritten | rewritten | ||
| 200.173.246.x/24 | 2022-03-16 20:57:11 GMT | rewritten | rewritten | ||
| 200.173.248.x/24 | 2022-04-20 01:46:41 GMT | rewritten | rewritten | ||
| 200.173.249.x/24 | 2024-03-18 20:18:03 GMT | rewritten | rewritten | ||
| 200.173.250.x/24 | 2022-04-10 02:17:48 GMT | rewritten | rewritten | ||
| 200.173.251.x/24 | 2023-07-01 15:19:28 GMT | rewritten | rewritten | ||
| 200.174.69.x/24 | 2019-09-22 17:43:53 GMT | blocked | blocked | ||
| 200.174.197.x/24 | 2021-12-16 13:58:16 GMT | blocked | blocked | ||
| 200.178.84.x/24 | 2024-04-15 16:24:49 GMT | blocked | blocked | ||
| 200.178.86.x/24 | 2023-06-02 16:49:59 GMT | blocked | blocked | ||
| 200.208.81.x/24 | 2020-01-29 23:35:21 GMT | rewritten | rewritten | ||
| 200.213.107.x/24 | 2024-03-05 14:17:33 GMT | blocked | blocked | ||
| 200.228.217.x/24 | 2018-11-16 13:23:07 GMT | blocked | blocked | ||
| 200.241.72.x/24 | 2022-02-25 21:08:42 GMT | blocked | blocked | ||
| 200.242.165.x/24 | 2024-01-15 14:22:14 GMT | blocked | blocked | ||
| 200.247.255.x/24 | 2021-02-24 23:36:21 GMT | rewritten | received | ||
| 200.250.59.x/24 | 2024-03-13 12:55:30 GMT | blocked | blocked | ||
| 200.255.53.x/24 | 2019-10-25 19:18:24 GMT | rewritten | rewritten | ||
| 201.56.232.x/24 | 2021-11-24 13:40:10 GMT | unknown | blocked | ||
| 201.72.251.x/24 | 2024-01-14 21:36:46 GMT | rewritten | rewritten | ||
| 201.73.98.x/24 | 2018-10-24 17:22:05 GMT | blocked | blocked | ||
| 201.73.190.x/24 | 2018-11-06 23:08:57 GMT | blocked | blocked | ||
Customers of AS 4230 we have spoofer tests from
This is the list of directly connected customers of AS 4230 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 | 264116 | bra (Brazil) | 6 | 1 | AS 264116 tests | received | 266168 | bra (Brazil) | 7 | 2 | AS 266168 tests | received | 61588 | bra (Brazil) | 50 | 13 | AS 61588 tests | received | 266356 | bra (Brazil) | 3 | 0 | AS 266356 tests | blocked | 268437 | bra (Brazil) | 3 | 1 | AS 268437 tests | blocked | 262299 | bra (Brazil) | 4 | 0 | AS 262299 tests | blocked | 22085 | bra (Brazil) | 10 | 0 | AS 22085 tests | blocked | 264470 | bra (Brazil) | 12 | 2 | AS 264470 tests | blocked | 266192 | bra (Brazil) | 13 | 5 | AS 266192 tests | blocked | 263661 | bra (Brazil) | 31 | 13 | AS 263661 tests | blocked | 52771 | bra (Brazil) | 74 | 24 | AS 52771 tests | blocked | 28283 | bra (Brazil) | 1006 | 379 | AS 28283 tests | blocked | 28573 | bra (Brazil) | 1629 | 9 | AS 28573 tests | blocked | 23106 | bra (Brazil) | 2178 | 346 | AS 23106 tests | blocked |
|---|
Address Space Announcement History
The customer cone for 4230 is too large for a prefix list to be useful.