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Spoofing Information for AS 7018 (ATT-INTERNET4)

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
12.11.109.x/242024-09-29 11:33:17 GMTblockedblocked
12.14.160.x/242024-09-23 18:31:59 GMTrewrittenrewritten
12.16.110.x/242023-12-15 21:12:44 GMTblockedunknown
12.23.112.x/242024-06-23 22:41:49 GMTblockedblocked
12.74.53.x/242023-12-21 01:25:50 GMTblockedblocked
12.74.55.x/242024-01-28 21:29:44 GMTrewrittenrewritten
12.74.214.x/242024-01-14 10:48:21 GMTrewrittenrewritten
12.75.8.x/242024-04-06 20:22:46 GMTblockedblocked
12.75.46.x/242024-03-03 11:01:33 GMTblockedblocked
12.75.178.x/242024-09-01 12:45:16 GMTblockedblocked
12.75.215.x/242024-11-19 19:44:29 GMTblockedblocked
12.90.237.x/242024-03-09 19:55:09 GMTblockedblocked
12.104.110.x/242024-11-01 21:27:20 GMTblockedblocked
12.119.189.x/242024-06-15 21:37:30 GMTblockedblocked
12.167.241.x/242024-09-23 09:21:31 GMTblockedblocked
12.184.218.x/242024-03-04 15:59:06 GMTblockedblocked
12.191.126.x/242024-01-21 23:36:48 GMTblockedblocked
12.191.181.x/242023-12-05 06:43:30 GMTblockedblocked
12.195.22.x/242024-11-17 23:37:38 GMTblockedblocked
12.206.84.x/242024-01-08 23:35:15 GMTblockedblocked
12.215.250.x/242024-09-23 13:30:19 GMTblockedblocked
12.237.112.x/242024-06-16 19:36:24 GMTblockedblocked
12.248.214.x/242024-11-17 14:42:29 GMTblockedblocked
23.112.172.x/242024-04-16 15:06:09 GMTrewrittenrewritten
23.120.127.x/242024-09-07 02:43:41 GMTblockedblocked
23.122.136.x/242024-11-10 16:47:22 GMTblockedblocked
45.17.213.x/242024-11-19 00:19:13 GMTrewrittenrewritten
45.30.98.x/242024-05-21 04:22:03 GMTblockedblocked
69.215.128.x/242024-05-10 06:54:51 GMTblockedblocked
69.232.37.x/242024-09-07 22:59:50 GMTblockedblocked
70.129.255.x/242024-11-16 21:53:46 GMTblockedblocked
70.142.145.x/242024-11-11 00:06:40 GMTblockedblocked
76.219.215.x/242024-06-21 02:02:37 GMTblockedblocked
76.224.184.x/242024-11-11 01:59:09 GMTblockedblocked
76.230.57.x/242024-07-26 12:49:48 GMTblockedblocked
99.6.96.x/242024-11-17 06:27:01 GMTblockedblocked
99.6.250.x/242024-11-01 20:13:43 GMTblockedblocked
99.7.157.x/242024-03-06 15:44:44 GMTblockedblocked
99.32.186.x/242024-09-20 14:45:49 GMTblockedblocked
99.54.106.x/242024-01-29 15:28:18 GMTblockedblocked
99.69.200.x/242023-12-24 09:04:15 GMTblockedblocked
99.96.126.x/242024-04-02 13:46:04 GMTblockedblocked
99.97.217.x/242024-11-10 21:43:32 GMTblockedblocked
99.98.136.x/242024-04-27 07:24:28 GMTblockedblocked
99.129.200.x/242024-06-22 01:09:30 GMTblockedblocked
99.162.86.x/242024-02-26 02:03:48 GMTrewrittenrewritten
104.0.113.x/242024-11-18 23:26:39 GMTrewrittenrewritten
104.49.4.x/242023-12-27 04:05:28 GMTblockedblocked
104.57.90.x/242024-11-19 19:41:46 GMTrewrittenrewritten
104.177.117.x/242024-02-19 01:26:50 GMTblockedblocked
104.179.111.x/242024-03-23 01:01:51 GMTblockedblocked
104.182.56.x/242024-09-05 22:04:15 GMTrewrittenrewritten
104.186.72.x/242024-01-08 16:55:34 GMTblockedblocked
104.186.148.x/242024-11-20 17:43:17 GMTblockedblocked
107.115.43.x/242024-06-27 04:59:39 GMTblockedblocked
107.115.239.x/242024-04-07 18:34:41 GMTblockedblocked
107.116.89.x/242024-10-10 22:18:56 GMTrewrittenrewritten
107.116.98.x/242024-02-04 03:33:42 GMTrewrittenrewritten
107.116.170.x/242024-11-13 19:03:28 GMTblockedblocked
107.119.41.x/242023-11-22 19:40:17 GMTblockedblocked
107.122.174.x/242024-01-30 16:41:01 GMTrewrittenrewritten
107.122.189.x/242023-12-22 20:06:39 GMTblockedblocked
107.122.241.x/242024-02-07 09:46:07 GMTrewrittenrewritten
107.123.1.x/242024-07-18 16:26:59 GMTrewrittenrewritten
107.123.49.x/242024-02-11 05:41:34 GMTrewrittenrewritten
107.129.164.x/242024-01-09 00:52:11 GMTblockedblocked
107.135.197.x/242024-08-16 12:10:40 GMTblockedblocked
107.138.40.x/242024-08-12 22:28:57 GMTblockedblocked
107.138.145.x/242024-10-10 21:41:35 GMTrewrittenrewritten
107.142.156.x/242024-06-13 23:06:44 GMTrewrittenrewritten
107.196.175.x/242024-04-29 06:59:18 GMTblockedblocked
107.199.64.x/242024-07-09 19:54:06 GMTblockedblocked
107.216.131.x/242024-11-01 20:04:29 GMTblockedblocked
107.221.110.x/242024-02-15 15:13:32 GMTrewrittenrewritten
108.82.168.x/242024-11-16 19:15:54 GMTrewrittenrewritten
108.92.126.x/242024-11-19 00:58:44 GMTblockedblocked
108.95.182.x/242024-11-18 00:36:53 GMTrewrittenrewritten
108.147.33.x/242024-01-14 21:46:45 GMTrewrittenrewritten
108.147.94.x/242024-03-01 00:22:12 GMTrewrittenrewritten
108.147.103.x/242024-02-14 04:51:15 GMTrewrittenrewritten
108.147.197.x/242024-03-01 05:00:25 GMTblockedblocked
108.195.251.x/242024-06-16 20:34:22 GMTblockedblocked
108.197.15.x/242024-06-10 17:41:34 GMTblockedblocked
108.236.124.x/242024-07-15 17:08:44 GMTblockedblocked
108.246.105.x/242024-04-09 15:41:12 GMTblockedblocked
162.195.99.x/242024-04-26 16:46:14 GMTblockedblocked
162.238.46.x/242024-09-17 02:08:56 GMTrewrittenrewritten
166.196.75.x/242024-02-23 05:17:39 GMTblockedblocked
166.198.21.x/242024-07-20 17:00:37 GMTblockedblocked
166.198.28.x/242024-04-08 01:48:54 GMTblockedblocked
166.199.60.x/242024-08-11 03:24:09 GMTblockedblocked
166.199.97.x/242024-02-21 16:26:34 GMTblockedblocked
166.199.115.x/242024-02-28 08:33:29 GMTrewrittenrewritten
166.199.250.x/242024-06-26 18:17:57 GMTblockedblocked
166.205.124.x/242024-02-06 01:41:13 GMTblockedblocked
206.171.115.x/242024-11-15 23:32:06 GMTrewrittenrewritten
207.212.33.x/242024-11-12 17:52:41 GMTblockedblocked
208.191.44.x/242024-09-13 16:19:06 GMTrewrittenrewritten
209.36.129.x/242024-01-25 01:47:55 GMTblockedblocked
2600:387:xx::/402024-11-19 19:44:29 GMTblockedblocked
2600:1700:7xx::/402024-09-07 22:59:50 GMTblockedblocked
2600:1700:8xx::/402023-12-27 04:05:28 GMTblockedblocked
2600:1700:exx::/402024-11-05 18:32:22 GMTblockedblocked
2600:1700:fxx::/402024-06-10 17:41:34 GMTblockedblocked
2600:1700:2exx::/402024-09-02 01:00:43 GMTblockedblocked
2600:1700:31xx::/402024-06-24 10:15:40 GMTblockedblocked
2600:1700:3exx::/402024-10-10 21:41:35 GMTblockedblocked
2600:1700:46xx::/402023-12-24 02:14:00 GMTblockedblocked
2600:1700:47xx::/402024-08-12 15:01:01 GMTblockedblocked
2600:1700:4fxx::/402024-04-09 15:41:12 GMTblockedblocked
2600:1700:52xx::/402024-11-01 20:04:29 GMTblockedblocked
2600:1700:5axx::/402024-11-01 20:13:43 GMTblockedblocked
2600:1700:5exx::/402024-04-17 00:01:51 GMTblockedblocked
2600:1700:6dxx::/402024-07-09 19:54:06 GMTblockedblocked
2600:1700:7bxx::/402024-04-02 13:46:04 GMTblockedblocked
2600:1700:82xx::/402024-11-10 21:43:32 GMTblockedblocked
2600:1700:94xx::/402024-05-21 04:22:03 GMTblockedblocked
2600:1700:95xx::/402024-11-11 00:06:40 GMTblockedblocked
2600:1700:98xx::/402024-11-19 00:58:44 GMTblockedblocked
2600:1700:a6xx::/402024-11-11 01:59:09 GMTblockedblocked
2600:1700:a9xx::/402024-04-29 06:59:18 GMTblockedblocked
2600:1700:adxx::/402024-08-05 06:15:58 GMTblockedblocked
2600:1700:c4xx::/402024-08-12 22:28:57 GMTblockedblocked
2600:1700:d8xx::/402024-06-28 03:38:13 GMTblockedblocked
2600:1700:f8xx::/402023-12-24 09:04:15 GMTblockedblocked
2600:1700:ffxx::/402024-07-09 14:56:10 GMTblockedblocked
2600:1702:32xx::/402024-07-26 12:49:48 GMTblockedblocked
2600:1702:5axx::/402024-11-19 19:41:46 GMTblockedblocked

Customers of AS 7018 we have spoofer tests from

This is the list of directly connected customers of AS 7018 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
393530 (TLU)usa (United States)10AS 393530 testsreceived
62920 (PRAIRIEPOWER)usa (United States)10AS 62920 testsblocked
6192 (UCDAVIS-CORE)usa (United States)60AS 6192 testsblocked
14203 (JUNIPER-NETWORKS)usa (United States)140AS 14203 testsblocked
8151mex (Mexico)6183127AS 8151 testsblocked

Address Space Announcement History

The customer cone for 7018 is too large for a prefix list to be useful.

Last Modified