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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
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.
IP blockLatest testSpoof
Private
Spoof
Routable
14.23.109.x/242025-10-24 03:25:21 GMTrewrittenrewritten
14.145.15.x/242025-07-27 01:51:55 GMTblockedblocked
14.145.30.x/242025-09-11 15:02:31 GMTblockedblocked
14.145.31.x/242025-10-14 13:43:32 GMTblockedblocked
14.145.35.x/242025-10-16 15:31:15 GMTblockedblocked
14.145.44.x/242025-10-20 17:14:44 GMTblockedblocked
14.145.46.x/242025-10-22 15:38:57 GMTblockedblocked
14.145.57.x/242025-10-18 02:41:18 GMTblockedblocked
14.145.62.x/242025-09-21 15:03:31 GMTblockedblocked
14.145.77.x/242025-10-06 14:57:10 GMTblockedblocked
14.145.78.x/242025-10-03 07:41:16 GMTblockedblocked
14.145.79.x/242025-06-27 13:06:17 GMTblockedblocked
14.145.80.x/242025-08-24 13:51:40 GMTblockedblocked
14.145.84.x/242025-06-11 16:17:33 GMTblockedblocked
14.153.193.x/242025-03-13 06:38:06 GMTblockedblocked
27.154.147.x/242025-04-16 08:12:12 GMTblockedblocked
27.154.149.x/242025-04-15 14:41:34 GMTblockedblocked
27.226.128.x/242025-10-24 07:56:40 GMTrewrittenrewritten
27.226.129.x/242025-02-15 14:22:21 GMTrewrittenrewritten
27.226.130.x/242025-02-02 14:31:48 GMTrewrittenrewritten
27.226.131.x/242025-04-19 03:27:55 GMTrewrittenrewritten
27.226.132.x/242025-07-12 08:07:09 GMTrewrittenrewritten
27.226.133.x/242025-08-31 08:58:27 GMTrewrittenrewritten
27.226.134.x/242025-03-01 07:32:53 GMTrewrittenrewritten
27.226.135.x/242025-06-24 13:17:48 GMTrewrittenrewritten
36.1.80.x/242025-02-10 01:58:43 GMTblockedblocked
36.6.57.x/242025-03-13 08:47:13 GMTblockedblocked
36.101.116.x/242025-11-23 17:54:38 GMTblockedblocked
36.101.117.x/242025-11-26 08:16:46 GMTblockedblocked
36.101.118.x/242025-12-02 08:29:05 GMTblockedblocked
36.101.121.x/242025-11-15 19:41:49 GMTblockedblocked
36.101.122.x/242025-11-24 08:29:13 GMTblockedblocked
36.101.126.x/242025-11-23 03:17:59 GMTblockedblocked
42.88.4.x/242025-06-09 01:16:13 GMTblockedblocked
42.88.8.x/242025-12-02 08:09:30 GMTblockedblocked
42.88.20.x/242025-05-27 03:26:01 GMTblockedblocked
42.88.21.x/242025-04-02 10:30:02 GMTblockedblocked
42.88.23.x/242025-07-17 06:37:39 GMTblockedblocked
42.88.30.x/242025-09-01 02:14:29 GMTblockedblocked
42.88.32.x/242025-09-03 02:46:01 GMTblockedblocked
42.88.33.x/242024-12-23 02:52:12 GMTblockedblocked
42.88.37.x/242025-03-31 08:30:04 GMTblockedblocked
42.88.40.x/242025-10-29 01:55:02 GMTblockedblocked
42.88.56.x/242025-07-01 08:08:37 GMTblockedblocked
42.88.57.x/242025-04-16 06:02:37 GMTblockedblocked
42.88.64.x/242025-04-02 04:20:27 GMTblockedblocked
42.88.79.x/242025-10-23 02:48:52 GMTblockedblocked
42.88.86.x/242025-08-31 01:39:01 GMTblockedblocked
42.88.94.x/242025-03-31 08:37:57 GMTblockedblocked
42.88.103.x/242025-11-20 06:14:32 GMTblockedblocked
42.88.129.x/242025-09-03 03:14:26 GMTblockedblocked
42.88.135.x/242025-07-01 08:52:46 GMTblockedblocked
42.88.155.x/242025-11-20 01:40:59 GMTblockedblocked
42.88.162.x/242025-04-21 05:33:47 GMTblockedblocked
42.88.169.x/242025-03-31 09:09:29 GMTblockedblocked
42.88.172.x/242025-06-23 00:51:08 GMTblockedblocked
42.88.180.x/242025-09-17 01:54:05 GMTblockedblocked
42.88.197.x/242025-11-14 08:00:50 GMTblockedblocked
42.88.203.x/242025-04-22 00:54:53 GMTblockedblocked
42.88.209.x/242025-04-16 03:06:36 GMTblockedblocked
42.88.218.x/242025-09-17 01:11:29 GMTblockedblocked
42.88.224.x/242025-11-14 06:37:20 GMTblockedblocked
42.88.232.x/242025-05-26 09:48:48 GMTblockedblocked
42.88.246.x/242025-07-01 08:44:36 GMTblockedblocked
42.88.248.x/242025-10-30 08:17:16 GMTblockedblocked
42.88.254.x/242024-12-23 08:58:26 GMTblockedblocked
42.92.160.x/242025-10-27 00:18:11 GMTblockedblocked
42.92.161.x/242025-12-04 01:16:55 GMTblockedblocked
42.92.162.x/242025-06-05 08:03:19 GMTblockedblocked
42.92.163.x/242025-12-03 08:50:39 GMTblockedblocked
42.92.164.x/242025-07-10 04:44:54 GMTblockedblocked
42.92.165.x/242025-12-05 06:32:37 GMTblockedblocked
42.92.166.x/242025-10-29 01:04:22 GMTblockedblocked
42.92.167.x/242025-08-15 07:59:57 GMTblockedblocked
42.94.22.x/242025-04-17 16:27:43 GMTrewrittenrewritten
49.87.172.x/242025-03-13 19:27:13 GMTblockedblocked
49.87.198.x/242025-03-13 13:08:22 GMTblockedblocked
58.48.104.x/242025-06-28 00:59:24 GMTrewrittenrewritten
58.48.105.x/242025-09-05 06:16:45 GMTrewrittenrewritten
58.48.224.x/242025-05-05 04:04:17 GMTrewrittenrewritten
58.48.225.x/242025-04-23 07:36:22 GMTrewrittenrewritten
58.48.226.x/242025-01-17 06:53:51 GMTrewrittenrewritten
58.48.227.x/242025-01-24 02:57:43 GMTrewrittenrewritten
58.52.80.x/242025-03-13 14:55:16 GMTblockedblocked
58.56.150.x/242025-06-04 06:54:41 GMTrewrittenrewritten
58.60.63.x/242025-04-26 16:34:27 GMTblockedblocked
59.35.91.x/242025-05-09 01:56:27 GMTrewrittenrewritten
59.60.120.x/242025-03-13 05:15:29 GMTblockedblocked
59.173.120.x/242025-07-18 00:54:09 GMTrewrittenrewritten
59.173.121.x/242025-10-15 07:13:04 GMTrewrittenrewritten
59.173.122.x/242025-07-10 08:51:48 GMTrewrittenrewritten
59.173.123.x/242025-06-06 01:17:20 GMTrewrittenrewritten
59.174.160.x/242025-08-09 06:57:14 GMTrewrittenrewritten
59.174.163.x/242025-07-31 01:41:10 GMTrewrittenrewritten
60.164.51.x/242025-09-15 05:17:46 GMTrewrittenblocked
60.164.171.x/242025-10-21 13:59:07 GMTrewrittenrewritten
60.184.246.x/242025-03-13 15:52:13 GMTblockedblocked
60.191.150.x/242025-07-20 09:33:16 GMTrewrittenrewritten
61.178.103.x/242025-05-19 07:33:18 GMTblockedblocked
61.178.106.x/242025-07-03 07:34:54 GMTblockedblocked
61.178.179.x/242025-04-01 00:21:15 GMTrewrittenrewritten
61.178.200.x/242025-10-22 07:37:46 GMTrewrittenblocked
61.178.245.x/242025-10-30 09:10:35 GMTrewrittenrewritten
61.188.233.x/242025-03-12 09:47:20 GMTblockedblocked
110.82.165.x/242025-03-13 07:07:42 GMTblockedblocked
110.82.167.x/242025-03-13 06:58:40 GMTblockedblocked
111.172.5.x/242025-11-21 08:20:23 GMTrewrittenrewritten
111.172.6.x/242025-11-26 07:06:08 GMTrewrittenrewritten
111.172.7.x/242025-11-13 07:15:28 GMTrewrittenrewritten
113.92.156.x/242025-11-24 10:01:52 GMTrewrittenrewritten
113.92.157.x/242025-09-30 08:49:33 GMTrewrittenrewritten
113.116.128.x/242025-10-31 08:10:44 GMTrewrittenrewritten
113.116.129.x/242025-10-24 10:41:07 GMTrewrittenrewritten
113.116.130.x/242025-10-18 04:30:48 GMTrewrittenrewritten
113.116.176.x/242025-11-26 07:46:19 GMTrewrittenrewritten
113.116.177.x/242025-11-25 06:29:22 GMTrewrittenrewritten
113.116.178.x/242025-11-19 03:47:52 GMTrewrittenrewritten
113.116.179.x/242025-12-04 08:18:06 GMTrewrittenrewritten
114.104.134.x/242025-03-13 07:08:51 GMTblockedblocked
114.104.227.x/242025-03-13 00:19:46 GMTblockedblocked
114.222.77.x/242025-09-23 15:22:03 GMTrewrittenrewritten
114.223.181.x/242025-03-13 15:28:28 GMTblockedblocked
115.193.160.x/242025-02-20 06:55:54 GMTrewrittenrewritten
115.193.174.x/242025-02-17 14:15:45 GMTrewrittenrewritten
115.193.186.x/242025-02-25 05:03:06 GMTrewrittenrewritten
115.193.189.x/242024-12-09 13:29:20 GMTrewrittenrewritten
115.205.68.x/242025-01-23 09:16:40 GMTrewrittenrewritten
115.221.246.x/242025-03-13 14:36:15 GMTblockedblocked
115.229.220.x/242025-03-13 10:52:11 GMTblockedblocked
116.22.75.x/242025-03-13 14:03:31 GMTblockedblocked
116.26.140.x/242025-05-07 15:31:53 GMTrewrittenrewritten
117.60.123.x/242025-03-13 07:19:10 GMTblockedblocked
117.65.111.x/242025-03-13 07:50:57 GMTblockedblocked
117.69.155.x/242025-03-13 15:25:26 GMTblockedblocked
117.69.159.x/242025-03-13 10:21:16 GMTblockedblocked
117.69.188.x/242025-03-13 09:37:09 GMTblockedblocked
117.69.189.x/242025-03-12 22:47:30 GMTblockedblocked
117.69.190.x/242025-03-13 14:00:32 GMTblockedblocked
117.90.145.x/242025-03-13 15:05:52 GMTblockedblocked
117.92.77.x/242025-03-13 08:11:56 GMTblockedblocked
118.112.64.x/242025-03-13 07:40:21 GMTblockedblocked
118.120.231.x/242025-03-12 08:33:20 GMTblockedblocked
119.41.206.x/242025-03-13 15:39:48 GMTblockedblocked
119.103.138.x/242025-04-23 07:54:03 GMTrewrittenrewritten
119.103.149.x/242025-02-20 13:22:49 GMTrewrittenrewritten
119.136.88.x/242025-09-08 10:18:48 GMTrewrittenrewritten
119.136.89.x/242025-09-23 07:32:03 GMTrewrittenrewritten
119.136.91.x/242025-10-10 09:21:07 GMTrewrittenrewritten
121.61.160.x/242025-03-13 14:45:53 GMTblockedblocked
121.205.230.x/242025-03-13 06:42:07 GMTblockedblocked
121.233.159.x/242025-03-13 07:30:19 GMTblockedblocked
123.52.208.x/242025-03-11 03:36:53 GMTrewrittenrewritten
123.52.209.x/242025-01-19 19:02:42 GMTrewrittenrewritten
123.52.216.x/242025-02-21 07:44:39 GMTrewrittenrewritten
123.52.217.x/242025-02-27 08:30:55 GMTrewrittenrewritten
123.52.218.x/242025-03-09 10:09:51 GMTrewrittenrewritten
123.52.219.x/242025-01-13 01:34:19 GMTrewrittenrewritten
125.92.100.x/242025-03-13 15:19:24 GMTblockedblocked
125.106.14.x/242025-03-13 18:34:44 GMTblockedblocked
125.113.145.x/242025-04-05 14:45:27 GMTrewrittenrewritten
171.14.80.x/242025-02-19 15:41:26 GMTrewrittenrewritten
171.14.81.x/242025-03-01 12:14:54 GMTrewrittenrewritten
171.82.59.x/242024-12-13 03:30:52 GMTblockedblocked
180.102.167.x/242025-03-12 12:22:48 GMTblockedblocked
182.132.24.x/242025-03-12 11:06:45 GMTblockedblocked
182.132.25.x/242025-03-12 08:11:48 GMTblockedblocked
182.204.177.x/242025-03-13 12:41:13 GMTblockedblocked
183.6.185.x/242025-07-18 01:42:50 GMTblockedblocked
183.128.166.x/242025-01-13 13:45:40 GMTrewrittenrewritten
183.166.136.x/242025-03-12 23:42:21 GMTblockedblocked
183.166.137.x/242025-03-13 14:36:29 GMTblockedblocked
183.166.146.x/242025-03-13 06:59:24 GMTblockedblocked
183.166.148.x/242025-03-12 19:47:20 GMTblockedblocked
183.166.171.x/242025-03-13 15:41:39 GMTblockedblocked
202.96.137.x/242025-05-16 05:23:01 GMTblockedblocked
218.19.169.x/242025-03-13 14:14:24 GMTblockedblocked
218.20.124.x/242025-03-13 14:26:33 GMTblockedblocked
218.86.73.x/242025-03-13 12:30:49 GMTblockedblocked
218.88.4.x/242025-03-13 11:13:16 GMTblockedblocked
219.139.229.x/242025-06-20 08:54:17 GMTrewrittenrewritten
219.139.231.x/242025-06-11 11:02:35 GMTrewrittenrewritten
219.140.40.x/242024-12-06 08:07:56 GMTblockedblocked
219.140.41.x/242025-05-15 13:04:08 GMTrewrittenrewritten
219.140.42.x/242024-12-20 10:55:37 GMTrewrittenrewritten
219.140.43.x/242025-01-09 02:12:42 GMTrewrittenrewritten
219.147.13.x/242025-06-24 00:34:23 GMTrewrittenrewritten
220.178.132.x/242025-03-13 08:00:17 GMTblockedblocked
221.232.101.x/242025-08-19 02:58:58 GMTrewrittenrewritten
221.232.102.x/242025-10-24 08:52:04 GMTrewrittenrewritten
221.232.103.x/242025-08-28 02:13:00 GMTrewrittenrewritten
222.81.167.x/242025-05-02 05:34:52 GMTblockedblocked
240e:305:18xx::/402025-05-17 19:32:32 GMTblockedblocked
240e:314:e2xx::/402025-11-26 08:16:46 GMTblockedblocked
240e:335:2xx::/402025-07-28 01:14:40 GMTblockedreceived
240e:335:4cxx::/402025-04-03 10:03:23 GMTblockedblocked
240e:33d:54xx::/402025-03-11 03:36:53 GMTreceivedreceived
240e:36c:dxx::/402025-11-13 07:15:28 GMTrewrittenrewritten
240e:36d:12xx::/402025-10-24 03:42:44 GMTrewrittenrewritten
240e:36f:9xx::/402025-06-04 09:23:32 GMTrewrittenrewritten
240e:390:8xx::/402025-03-02 08:20:09 GMTblockedblocked
240e:3bb:6xx::/402025-10-22 15:38:57 GMTrewrittenrewritten
240e:404:6dxx::/402024-12-08 05:09:13 GMTblockedblocked
240e:404:6exx::/402024-12-21 10:03:10 GMTblockedblocked
240e:404:79xx::/402024-12-28 08:55:53 GMTblockedblocked
240e:404:7axx::/402024-12-28 07:06:10 GMTblockedblocked
240e:404:b8xx::/402025-04-11 01:35:15 GMTblockedblocked
240e:435:c0xx::/402025-07-17 06:37:39 GMTblockedblocked
240e:435:cbxx::/402025-07-01 08:44:36 GMTblockedblocked
240e:435:dbxx::/402025-04-22 00:54:53 GMTblockedblocked
240e:435:dexx::/402025-07-03 01:39:49 GMTblockedblocked
240e:436:c8xx::/402025-04-21 00:43:51 GMTblockedblocked
240e:436:cexx::/402025-03-26 08:16:55 GMTblockedblocked
240e:436:d8xx::/402025-07-17 07:34:39 GMTblockedblocked
240e:436:dexx::/402025-07-01 08:08:37 GMTblockedblocked
240e:437:c3xx::/402025-03-31 08:37:57 GMTblockedblocked
240e:437:cbxx::/402025-03-31 08:04:26 GMTblockedblocked
240e:437:cexx::/402025-07-01 08:52:46 GMTblockedblocked
240e:437:d3xx::/402025-04-21 04:18:33 GMTblockedblocked
240e:437:dbxx::/402025-04-21 05:33:47 GMTblockedblocked
240e:437:dexx::/402025-05-26 09:48:48 GMTblockedblocked
240e:440:32xx::/402024-12-18 08:40:44 GMTblockedblocked
240e:45e:1xx::/402025-02-15 01:39:42 GMTrewrittenrewritten
240e:47c:6xx::/402025-04-24 09:39:09 GMTblockedblocked
240e:47e:6xx::/402025-04-22 10:13:14 GMTblockedblocked
240e:649:78xx::/402025-04-26 05:04:04 GMTblockedblocked

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.

ASNCountryNumber of Prefixes
in Customer Cone
Number of ASes
in Customer Cone
Recent
tests
Spoof
Routable
4538 (ERX-CERNET-BKB)chn (China)62215AS 4538 testsreceived
132225 (CHINATELECOM-QINGHAI-5G-NETWORK)chn (China)640AS 132225 testsblocked
4809 (CHINATELECOM-CORE-WAN-CN2)chn (China)12237214AS 4809 testsblocked
4837 (CHINA169-Backbone)chn (China)31519956AS 4837 testsblocked

Address Space Announcement History

The customer cone for 4134 is too large for a prefix list to be useful.

Last Modified