Spoofing Information for AS 4134 (CHINANET-BACKBONE)
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 | ||
|---|---|---|---|---|---|
| 14.23.109.x/24 | 2025-03-25 13:09:18 GMT | rewritten | rewritten | ||
| 14.26.235.x/24 | 2024-07-24 06:36:12 GMT | blocked | blocked | ||
| 14.120.123.x/24 | 2024-07-12 10:48:06 GMT | rewritten | rewritten | ||
| 14.145.6.x/24 | 2024-09-24 15:29:29 GMT | rewritten | rewritten | ||
| 14.145.7.x/24 | 2024-11-23 17:21:32 GMT | rewritten | rewritten | ||
| 14.145.8.x/24 | 2024-11-29 18:23:11 GMT | rewritten | rewritten | ||
| 14.145.10.x/24 | 2024-04-13 12:05:15 GMT | blocked | blocked | ||
| 14.145.15.x/24 | 2025-03-26 16:15:53 GMT | rewritten | rewritten | ||
| 14.145.27.x/24 | 2024-05-08 12:21:54 GMT | rewritten | rewritten | ||
| 14.145.30.x/24 | 2025-03-23 07:54:23 GMT | rewritten | rewritten | ||
| 14.145.31.x/24 | 2025-02-28 14:07:32 GMT | rewritten | rewritten | ||
| 14.145.35.x/24 | 2025-03-15 13:50:47 GMT | blocked | blocked | ||
| 14.145.40.x/24 | 2024-07-06 05:32:40 GMT | rewritten | rewritten | ||
| 14.145.42.x/24 | 2024-06-29 04:26:40 GMT | rewritten | rewritten | ||
| 14.145.44.x/24 | 2025-02-01 04:40:14 GMT | rewritten | rewritten | ||
| 14.145.46.x/24 | 2025-03-05 13:59:21 GMT | rewritten | rewritten | ||
| 14.145.51.x/24 | 2024-11-11 14:54:40 GMT | rewritten | rewritten | ||
| 14.145.56.x/24 | 2024-07-27 01:56:34 GMT | rewritten | rewritten | ||
| 14.145.57.x/24 | 2025-03-09 07:40:16 GMT | rewritten | rewritten | ||
| 14.145.58.x/24 | 2024-06-09 05:02:26 GMT | rewritten | rewritten | ||
| 14.145.62.x/24 | 2025-02-19 14:04:44 GMT | blocked | blocked | ||
| 14.145.77.x/24 | 2025-03-20 16:27:11 GMT | blocked | blocked | ||
| 14.145.78.x/24 | 2025-03-16 11:50:06 GMT | blocked | blocked | ||
| 14.145.79.x/24 | 2025-03-13 17:11:28 GMT | blocked | blocked | ||
| 14.145.80.x/24 | 2025-03-22 16:44:40 GMT | blocked | blocked | ||
| 14.145.84.x/24 | 2025-01-24 16:00:47 GMT | blocked | blocked | ||
| 14.153.193.x/24 | 2025-03-13 06:38:06 GMT | blocked | blocked | ||
| 27.226.129.x/24 | 2025-02-15 14:22:21 GMT | rewritten | rewritten | ||
| 27.226.130.x/24 | 2025-02-02 14:31:48 GMT | rewritten | rewritten | ||
| 27.226.131.x/24 | 2024-09-30 09:12:41 GMT | rewritten | rewritten | ||
| 27.226.132.x/24 | 2025-01-01 11:33:06 GMT | rewritten | rewritten | ||
| 27.226.133.x/24 | 2024-11-10 00:05:34 GMT | rewritten | rewritten | ||
| 27.226.134.x/24 | 2025-03-01 07:32:53 GMT | rewritten | rewritten | ||
| 36.1.80.x/24 | 2025-02-10 01:58:43 GMT | blocked | blocked | ||
| 36.6.57.x/24 | 2025-03-13 08:47:13 GMT | blocked | blocked | ||
| 42.88.3.x/24 | 2024-09-21 05:43:50 GMT | rewritten | rewritten | ||
| 42.88.33.x/24 | 2024-12-23 02:52:12 GMT | blocked | blocked | ||
| 42.88.34.x/24 | 2024-05-22 12:38:03 GMT | blocked | blocked | ||
| 42.88.36.x/24 | 2024-11-12 02:08:37 GMT | blocked | blocked | ||
| 42.88.41.x/24 | 2024-11-20 04:21:23 GMT | blocked | blocked | ||
| 42.88.56.x/24 | 2024-09-21 05:55:06 GMT | blocked | blocked | ||
| 42.88.57.x/24 | 2024-08-16 11:48:26 GMT | blocked | blocked | ||
| 42.88.67.x/24 | 2024-06-08 06:11:06 GMT | blocked | blocked | ||
| 42.88.92.x/24 | 2024-07-16 02:19:21 GMT | blocked | blocked | ||
| 42.88.103.x/24 | 2024-07-16 02:36:03 GMT | blocked | blocked | ||
| 42.88.106.x/24 | 2024-11-13 08:24:51 GMT | blocked | blocked | ||
| 42.88.108.x/24 | 2024-05-20 03:00:03 GMT | blocked | blocked | ||
| 42.88.115.x/24 | 2024-05-23 05:25:05 GMT | blocked | blocked | ||
| 42.88.124.x/24 | 2024-10-12 03:22:34 GMT | blocked | blocked | ||
| 42.88.129.x/24 | 2024-12-23 00:57:35 GMT | blocked | blocked | ||
| 42.88.144.x/24 | 2024-07-11 06:43:44 GMT | blocked | blocked | ||
| 42.88.147.x/24 | 2024-10-08 07:16:52 GMT | blocked | blocked | ||
| 42.88.152.x/24 | 2024-06-08 23:07:59 GMT | blocked | blocked | ||
| 42.88.166.x/24 | 2024-05-21 04:14:09 GMT | blocked | blocked | ||
| 42.88.176.x/24 | 2024-09-12 08:24:49 GMT | blocked | blocked | ||
| 42.88.202.x/24 | 2024-06-25 00:34:46 GMT | blocked | blocked | ||
| 42.88.222.x/24 | 2024-07-04 05:28:20 GMT | blocked | blocked | ||
| 42.88.248.x/24 | 2024-06-19 09:51:00 GMT | blocked | blocked | ||
| 42.88.249.x/24 | 2024-06-20 08:04:14 GMT | blocked | blocked | ||
| 42.88.254.x/24 | 2024-12-23 08:58:26 GMT | blocked | blocked | ||
| 42.92.160.x/24 | 2025-03-05 05:37:04 GMT | blocked | blocked | ||
| 42.92.161.x/24 | 2025-03-26 08:16:55 GMT | blocked | blocked | ||
| 42.92.162.x/24 | 2025-03-26 00:52:32 GMT | blocked | blocked | ||
| 42.92.163.x/24 | 2025-03-10 01:04:36 GMT | blocked | blocked | ||
| 42.92.164.x/24 | 2025-03-27 00:53:59 GMT | blocked | blocked | ||
| 42.92.165.x/24 | 2025-03-21 00:54:48 GMT | blocked | blocked | ||
| 42.92.166.x/24 | 2025-03-20 00:58:25 GMT | blocked | blocked | ||
| 42.92.167.x/24 | 2025-03-25 01:02:46 GMT | blocked | blocked | ||
| 49.87.172.x/24 | 2025-03-13 19:27:13 GMT | blocked | blocked | ||
| 49.87.198.x/24 | 2025-03-13 13:08:22 GMT | blocked | blocked | ||
| 58.48.224.x/24 | 2025-03-20 06:20:49 GMT | rewritten | rewritten | ||
| 58.48.225.x/24 | 2024-11-07 11:20:23 GMT | rewritten | rewritten | ||
| 58.48.226.x/24 | 2025-01-17 06:53:51 GMT | rewritten | rewritten | ||
| 58.48.227.x/24 | 2025-01-24 02:57:43 GMT | rewritten | rewritten | ||
| 58.52.80.x/24 | 2025-03-13 14:55:16 GMT | blocked | blocked | ||
| 58.60.63.x/24 | 2025-02-14 11:33:41 GMT | blocked | blocked | ||
| 59.60.120.x/24 | 2025-03-13 05:15:29 GMT | blocked | blocked | ||
| 60.184.246.x/24 | 2025-03-13 15:52:13 GMT | blocked | blocked | ||
| 60.187.172.x/24 | 2024-08-29 13:20:09 GMT | rewritten | rewritten | ||
| 61.178.103.x/24 | 2025-03-21 03:06:08 GMT | blocked | blocked | ||
| 61.178.106.x/24 | 2024-11-12 01:31:33 GMT | blocked | blocked | ||
| 61.178.179.x/24 | 2024-10-10 23:40:04 GMT | blocked | blocked | ||
| 61.188.233.x/24 | 2025-03-12 09:47:20 GMT | blocked | blocked | ||
| 110.82.165.x/24 | 2025-03-13 07:07:42 GMT | blocked | blocked | ||
| 110.82.167.x/24 | 2025-03-13 06:58:40 GMT | blocked | blocked | ||
| 111.172.4.x/24 | 2024-07-10 12:32:24 GMT | rewritten | rewritten | ||
| 111.172.5.x/24 | 2024-11-19 00:19:59 GMT | rewritten | rewritten | ||
| 111.172.6.x/24 | 2024-05-27 14:34:27 GMT | rewritten | rewritten | ||
| 111.172.7.x/24 | 2024-12-27 06:37:46 GMT | rewritten | rewritten | ||
| 111.176.110.x/24 | 2024-04-21 05:38:09 GMT | rewritten | rewritten | ||
| 113.65.13.x/24 | 2024-07-31 08:34:28 GMT | blocked | blocked | ||
| 113.77.81.x/24 | 2024-07-28 09:41:02 GMT | rewritten | rewritten | ||
| 114.104.134.x/24 | 2025-03-13 07:08:51 GMT | blocked | blocked | ||
| 114.104.227.x/24 | 2025-03-13 00:19:46 GMT | blocked | blocked | ||
| 114.223.181.x/24 | 2025-03-13 15:28:28 GMT | blocked | blocked | ||
| 115.193.160.x/24 | 2025-02-20 06:55:54 GMT | rewritten | rewritten | ||
| 115.193.168.x/24 | 2024-11-30 04:20:43 GMT | rewritten | rewritten | ||
| 115.193.169.x/24 | 2024-08-31 02:44:24 GMT | rewritten | rewritten | ||
| 115.193.170.x/24 | 2024-08-13 03:44:49 GMT | rewritten | rewritten | ||
| 115.193.174.x/24 | 2025-02-17 14:15:45 GMT | rewritten | rewritten | ||
| 115.193.186.x/24 | 2025-02-25 05:03:06 GMT | rewritten | rewritten | ||
| 115.193.188.x/24 | 2024-05-21 08:11:52 GMT | rewritten | rewritten | ||
| 115.193.189.x/24 | 2024-12-09 13:29:20 GMT | rewritten | rewritten | ||
| 115.205.68.x/24 | 2025-01-23 09:16:40 GMT | rewritten | rewritten | ||
| 115.221.246.x/24 | 2025-03-13 14:36:15 GMT | blocked | blocked | ||
| 115.224.245.x/24 | 2024-08-21 10:02:22 GMT | rewritten | rewritten | ||
| 115.224.249.x/24 | 2024-08-22 11:27:20 GMT | rewritten | rewritten | ||
| 115.229.220.x/24 | 2025-03-13 10:52:11 GMT | blocked | blocked | ||
| 116.7.245.x/24 | 2024-09-02 04:51:48 GMT | blocked | blocked | ||
| 116.22.75.x/24 | 2025-03-13 14:03:31 GMT | blocked | blocked | ||
| 116.253.194.x/24 | 2024-09-16 14:38:21 GMT | rewritten | rewritten | ||
| 117.60.123.x/24 | 2025-03-13 07:19:10 GMT | blocked | blocked | ||
| 117.65.111.x/24 | 2025-03-13 07:50:57 GMT | blocked | blocked | ||
| 117.69.155.x/24 | 2025-03-13 15:25:26 GMT | blocked | blocked | ||
| 117.69.159.x/24 | 2025-03-13 10:21:16 GMT | blocked | blocked | ||
| 117.69.188.x/24 | 2025-03-13 09:37:09 GMT | blocked | blocked | ||
| 117.69.189.x/24 | 2025-03-12 22:47:30 GMT | blocked | blocked | ||
| 117.69.190.x/24 | 2025-03-13 14:00:32 GMT | blocked | blocked | ||
| 117.90.145.x/24 | 2025-03-13 15:05:52 GMT | blocked | blocked | ||
| 117.92.77.x/24 | 2025-03-13 08:11:56 GMT | blocked | blocked | ||
| 118.112.64.x/24 | 2025-03-13 07:40:21 GMT | blocked | blocked | ||
| 118.120.231.x/24 | 2025-03-12 08:33:20 GMT | blocked | blocked | ||
| 118.182.78.x/24 | 2024-09-13 00:17:55 GMT | blocked | blocked | ||
| 119.41.206.x/24 | 2025-03-13 15:39:48 GMT | blocked | blocked | ||
| 119.103.138.x/24 | 2025-02-25 13:31:46 GMT | rewritten | rewritten | ||
| 119.103.139.x/24 | 2024-10-12 06:41:57 GMT | blocked | blocked | ||
| 119.103.149.x/24 | 2025-02-20 13:22:49 GMT | rewritten | rewritten | ||
| 121.61.160.x/24 | 2025-03-13 14:45:53 GMT | blocked | blocked | ||
| 121.205.230.x/24 | 2025-03-13 06:42:07 GMT | blocked | blocked | ||
| 121.233.159.x/24 | 2025-03-13 07:30:19 GMT | blocked | blocked | ||
| 122.234.59.x/24 | 2024-11-25 13:57:01 GMT | rewritten | rewritten | ||
| 123.52.208.x/24 | 2025-03-11 03:36:53 GMT | rewritten | rewritten | ||
| 123.52.209.x/24 | 2025-01-19 19:02:42 GMT | rewritten | rewritten | ||
| 123.52.216.x/24 | 2025-02-21 07:44:39 GMT | rewritten | rewritten | ||
| 123.52.217.x/24 | 2025-02-27 08:30:55 GMT | rewritten | rewritten | ||
| 123.52.218.x/24 | 2025-03-09 10:09:51 GMT | rewritten | rewritten | ||
| 123.52.219.x/24 | 2025-01-13 01:34:19 GMT | rewritten | rewritten | ||
| 125.75.59.x/24 | 2024-11-27 08:00:34 GMT | blocked | blocked | ||
| 125.92.100.x/24 | 2025-03-13 15:19:24 GMT | blocked | blocked | ||
| 125.106.14.x/24 | 2025-03-13 18:34:44 GMT | blocked | blocked | ||
| 171.14.80.x/24 | 2025-02-19 15:41:26 GMT | rewritten | rewritten | ||
| 171.14.81.x/24 | 2025-03-01 12:14:54 GMT | rewritten | rewritten | ||
| 171.82.58.x/24 | 2024-11-07 08:26:44 GMT | rewritten | rewritten | ||
| 171.82.59.x/24 | 2024-12-13 03:30:52 GMT | blocked | blocked | ||
| 180.102.167.x/24 | 2025-03-12 12:22:48 GMT | blocked | blocked | ||
| 180.136.210.x/24 | 2024-12-03 07:30:12 GMT | blocked | blocked | ||
| 182.132.24.x/24 | 2025-03-12 11:06:45 GMT | blocked | blocked | ||
| 182.132.25.x/24 | 2025-03-12 08:11:48 GMT | blocked | blocked | ||
| 182.204.177.x/24 | 2025-03-13 12:41:13 GMT | blocked | blocked | ||
| 183.128.143.x/24 | 2024-10-20 14:34:28 GMT | rewritten | rewritten | ||
| 183.128.160.x/24 | 2024-11-28 13:33:15 GMT | rewritten | rewritten | ||
| 183.128.166.x/24 | 2025-01-13 13:45:40 GMT | rewritten | rewritten | ||
| 183.166.136.x/24 | 2025-03-12 23:42:21 GMT | blocked | blocked | ||
| 183.166.137.x/24 | 2025-03-13 14:36:29 GMT | blocked | blocked | ||
| 183.166.146.x/24 | 2025-03-13 06:59:24 GMT | blocked | blocked | ||
| 183.166.148.x/24 | 2025-03-12 19:47:20 GMT | blocked | blocked | ||
| 183.166.171.x/24 | 2025-03-13 15:41:39 GMT | blocked | blocked | ||
| 218.19.169.x/24 | 2025-03-13 14:14:24 GMT | blocked | blocked | ||
| 218.20.124.x/24 | 2025-03-13 14:26:33 GMT | blocked | blocked | ||
| 218.75.150.x/24 | 2024-05-19 03:47:00 GMT | rewritten | blocked | ||
| 218.86.73.x/24 | 2025-03-13 12:30:49 GMT | blocked | blocked | ||
| 218.88.4.x/24 | 2025-03-13 11:13:16 GMT | blocked | blocked | ||
| 219.140.40.x/24 | 2024-12-06 08:07:56 GMT | blocked | blocked | ||
| 219.140.41.x/24 | 2024-11-26 14:26:28 GMT | blocked | blocked | ||
| 219.140.42.x/24 | 2024-12-20 10:55:37 GMT | rewritten | rewritten | ||
| 219.140.43.x/24 | 2025-01-09 02:12:42 GMT | rewritten | rewritten | ||
| 220.173.185.x/24 | 2024-09-19 14:27:12 GMT | rewritten | rewritten | ||
| 220.178.132.x/24 | 2025-03-13 08:00:17 GMT | blocked | blocked | ||
| 222.78.60.x/24 | 2024-08-23 10:44:11 GMT | rewritten | rewritten | ||
| 222.240.114.x/24 | 2024-05-22 04:50:15 GMT | blocked | blocked | ||
| 222.244.224.x/24 | 2024-06-05 07:02:09 GMT | blocked | blocked | ||
| 222.244.226.x/24 | 2024-05-29 05:56:11 GMT | blocked | blocked | ||
| 240e:305:18xx::/40 | 2025-02-15 04:38:01 GMT | blocked | blocked | ||
| 240e:335:2xx::/40 | 2025-03-27 00:53:59 GMT | blocked | received | ||
| 240e:335:4cxx::/40 | 2024-08-04 00:53:48 GMT | blocked | blocked | ||
| 240e:33d:54xx::/40 | 2025-03-11 03:36:53 GMT | received | received | ||
| 240e:369:88xx::/40 | 2024-04-21 05:38:09 GMT | blocked | blocked | ||
| 240e:36c:dxx::/40 | 2025-03-20 06:20:49 GMT | rewritten | rewritten | ||
| 240e:390:8xx::/40 | 2025-03-02 08:20:09 GMT | blocked | blocked | ||
| 240e:3bb:6xx::/40 | 2025-03-25 15:36:06 GMT | rewritten | rewritten | ||
| 240e:404:6dxx::/40 | 2024-12-08 05:09:13 GMT | blocked | blocked | ||
| 240e:404:6exx::/40 | 2024-12-21 10:03:10 GMT | blocked | blocked | ||
| 240e:404:79xx::/40 | 2024-12-28 08:55:53 GMT | blocked | blocked | ||
| 240e:404:7axx::/40 | 2024-12-28 07:06:10 GMT | blocked | blocked | ||
| 240e:435:cexx::/40 | 2024-07-16 03:09:40 GMT | blocked | blocked | ||
| 240e:435:dexx::/40 | 2024-06-26 07:41:15 GMT | blocked | blocked | ||
| 240e:436:c6xx::/40 | 2024-10-08 07:16:52 GMT | blocked | blocked | ||
| 240e:436:cexx::/40 | 2025-03-26 08:16:55 GMT | blocked | blocked | ||
| 240e:436:d8xx::/40 | 2024-05-24 07:30:36 GMT | blocked | blocked | ||
| 240e:436:dexx::/40 | 2024-09-21 05:55:06 GMT | blocked | blocked | ||
| 240e:437:c6xx::/40 | 2024-11-13 08:24:51 GMT | blocked | blocked | ||
| 240e:437:cexx::/40 | 2024-08-01 06:00:33 GMT | blocked | blocked | ||
| 240e:437:d0xx::/40 | 2024-11-18 07:13:32 GMT | blocked | blocked | ||
| 240e:437:d6xx::/40 | 2024-11-20 04:21:23 GMT | blocked | blocked | ||
| 240e:437:d8xx::/40 | 2024-05-24 04:44:19 GMT | blocked | blocked | ||
| 240e:437:dbxx::/40 | 2024-07-04 05:28:20 GMT | blocked | blocked | ||
| 240e:437:dexx::/40 | 2024-09-12 08:24:49 GMT | blocked | blocked | ||
| 240e:440:32xx::/40 | 2024-12-18 08:40:44 GMT | blocked | blocked | ||
| 240e:45e:1xx::/40 | 2025-02-15 01:39:42 GMT | rewritten | rewritten | ||
| 240e:45f:1xx::/40 | 2024-06-13 06:26:25 GMT | blocked | blocked | ||
| 240e:47c:6xx::/40 | 2025-02-25 09:21:13 GMT | blocked | blocked | ||
| 240e:47e:2xx::/40 | 2024-07-24 06:36:12 GMT | blocked | blocked | ||
| 240e:47e:6xx::/40 | 2025-01-02 08:25:39 GMT | blocked | blocked | ||
| 240e:649:78xx::/40 | 2025-03-24 05:25:51 GMT | blocked | blocked | ||
Customers of AS 4134 we have spoofer tests from
This is the list of directly connected customers of AS 4134 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 | 4538 (ERX-CERNET-BKB) | chn (China) | 1240 | 28 | AS 4538 tests | received | 36678 (CTUSA) | usa (United States) | 13 | 1 | AS 36678 tests | blocked | 4847 (CNIX-AP) | chn (China) | 2864 | 97 | AS 4847 tests | blocked | 9808 (CMNET-GD) | chn (China) | 4245 | 183 | AS 9808 tests | blocked | 4809 (CHINATELECOM-CORE-WAN-CN2) | chn (China) | 10231 | 428 | AS 4809 tests | blocked | 4837 (CHINA169-Backbone) | chn (China) | 23612 | 982 | AS 4837 tests | blocked |
|---|
Address Space Announcement History
The customer cone for 4134 is too large for a prefix list to be useful.