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Spoofing Information for AS 209 (CENTURYLINK-US-LEGACY-QWEST)

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
63.144.49.x/242024-03-24 22:16:45 GMTblockedblocked
63.145.95.x/242023-11-29 04:29:04 GMTblockedblocked
63.153.128.x/242023-12-17 21:04:35 GMTblockedblocked
63.153.186.x/242023-12-18 01:39:46 GMTblockedblocked
63.224.46.x/242024-03-22 18:36:39 GMTblockedreceived
63.224.47.x/242023-05-04 07:15:15 GMTblockedreceived
63.224.56.x/242023-09-01 03:07:36 GMTblockedreceived
63.224.57.x/242023-12-22 03:18:43 GMTblockedreceived
63.225.174.x/242023-10-08 07:09:23 GMTblockedreceived
63.225.175.x/242023-09-08 04:17:23 GMTblockedreceived
63.225.177.x/242023-10-19 16:40:17 GMTblockedreceived
63.225.178.x/242023-12-08 00:56:50 GMTblockedreceived
63.225.185.x/242023-11-23 22:35:10 GMTblockedreceived
63.228.223.x/242024-03-02 06:02:31 GMTblockedblocked
65.102.116.x/242023-11-09 20:13:40 GMTblockedreceived
65.102.117.x/242023-10-15 08:20:04 GMTblockedreceived
65.114.90.x/242023-11-13 19:12:47 GMTblockedblocked
65.131.18.x/242023-11-29 05:14:41 GMTblockedblocked
65.131.23.x/242023-09-13 16:18:56 GMTblockedblocked
65.131.29.x/242024-02-25 08:22:20 GMTblockedblocked
65.131.30.x/242023-11-02 04:54:54 GMTblockedblocked
65.131.37.x/242023-11-15 10:33:22 GMTblockedblocked
65.131.38.x/242024-02-23 16:17:03 GMTblockedblocked
65.131.40.x/242024-01-14 02:06:31 GMTblockedblocked
65.131.41.x/242024-03-27 03:09:42 GMTblockedblocked
65.131.44.x/242023-09-27 04:00:32 GMTblockedblocked
65.131.45.x/242024-02-24 21:34:01 GMTblockedblocked
65.131.52.x/242024-01-24 05:20:49 GMTrewrittenblocked
65.131.54.x/242024-01-14 22:34:52 GMTrewrittenblocked
65.131.55.x/242024-02-04 05:23:18 GMTblockedblocked
65.131.56.x/242023-12-09 04:33:27 GMTblockedblocked
65.131.60.x/242024-01-21 23:41:11 GMTrewrittenblocked
65.131.62.x/242023-09-14 04:00:41 GMTblockedblocked
65.131.86.x/242024-01-30 14:30:36 GMTblockedblocked
65.157.28.x/242023-06-08 23:54:09 GMTblockedblocked
65.158.198.x/242023-11-17 01:10:59 GMTblockedblocked
67.3.164.x/242023-11-16 17:29:23 GMTrewrittenrewritten
67.3.165.x/242023-06-24 17:52:11 GMTrewrittenrewritten
67.3.167.x/242023-10-02 05:36:31 GMTrewrittenrewritten
67.3.172.x/242024-01-25 23:45:17 GMTrewrittenrewritten
67.3.176.x/242023-07-08 20:15:54 GMTrewrittenrewritten
67.3.191.x/242023-11-11 01:42:25 GMTrewrittenrewritten
67.6.101.x/242023-09-24 02:44:08 GMTblockedblocked
67.40.8.x/242023-05-18 09:35:48 GMTblockedreceived
67.40.10.x/242023-06-22 15:26:11 GMTblockedreceived
67.40.12.x/242023-04-06 02:34:04 GMTblockedreceived
67.40.14.x/242023-11-02 19:02:22 GMTblockedreceived
67.40.15.x/242023-10-01 05:57:37 GMTblockedreceived
67.42.90.x/242023-11-22 21:59:57 GMTblockedreceived
67.132.53.x/242023-09-14 22:50:48 GMTblockedblocked
67.133.97.x/242023-10-01 20:54:02 GMTblockedblocked
67.233.109.x/242023-07-02 21:44:49 GMTblockedreceived
75.163.68.x/242023-04-19 03:25:46 GMTrewrittenrewritten
75.163.74.x/242023-04-04 03:34:34 GMTrewrittenrewritten
75.163.76.x/242023-06-03 11:04:12 GMTrewrittenrewritten
75.163.81.x/242023-04-21 04:51:59 GMTrewrittenrewritten
75.163.88.x/242023-10-27 23:14:52 GMTrewrittenrewritten
75.163.90.x/242023-10-18 15:22:47 GMTrewrittenrewritten
97.113.21.x/242023-11-17 01:54:27 GMTrewrittenblocked
97.113.22.x/242024-03-02 23:38:06 GMTrewrittenblocked
97.113.69.x/242023-08-20 22:11:17 GMTblockedblocked
97.113.174.x/242023-05-29 22:31:33 GMTrewrittenblocked
97.113.178.x/242023-08-14 03:34:44 GMTrewrittenblocked
97.113.180.x/242023-09-09 02:28:48 GMTrewrittenblocked
97.113.191.x/242023-05-11 20:49:09 GMTrewrittenblocked
97.115.125.x/242023-07-02 00:04:39 GMTblockedblocked
97.119.219.x/242023-12-28 18:58:47 GMTrewrittenrewritten
97.126.8.x/242024-01-20 22:12:14 GMTblockedblocked
97.126.11.x/242023-12-27 22:55:39 GMTblockedblocked
97.126.110.x/242023-05-15 16:02:41 GMTrewrittenblocked
97.126.115.x/242023-10-27 01:09:12 GMTrewrittenblocked
97.126.116.x/242023-12-12 20:56:00 GMTrewrittenblocked
97.126.124.x/242024-03-17 01:51:23 GMTrewrittenblocked
168.103.155.x/242023-12-29 04:29:26 GMTblockedreceived
198.59.53.x/242023-11-17 20:32:03 GMTblockedblocked
205.170.72.x/242023-11-13 17:33:40 GMTrewrittenreceived
2602:3f:99xx::/402023-12-18 00:49:12 GMTblockedblocked
2602:41:83xx::/402024-01-14 02:06:31 GMTblockedblocked

Customers of AS 209 we have spoofer tests from

This is the list of directly connected customers of AS 209 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
29802 (HVC-AS)usa (United States)255496AS 29802 testsblocked

Address Space Announcement History

The customer cone for 209 is too large for a prefix list to be useful.

Last Modified