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Spoofing Information for AS 2856 (BT-UK-AS)

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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
31.49.0.x/242023-03-01 07:10:45 GMTrewrittenrewritten
31.50.144.x/242023-12-01 21:29:20 GMTrewrittenrewritten
31.50.180.x/242023-07-15 14:06:58 GMTrewrittenrewritten
31.52.119.x/242023-03-14 14:11:40 GMTrewrittenrewritten
31.94.6.x/242023-07-18 10:39:01 GMTrewrittenrewritten
31.94.16.x/242023-07-17 14:14:27 GMTrewrittenrewritten
31.96.134.x/242023-04-28 20:49:14 GMTblockedblocked
81.135.227.x/242023-11-25 17:29:07 GMTrewrittenrewritten
81.138.4.x/242023-11-29 03:25:52 GMTrewrittenrewritten
81.144.242.x/242023-11-29 12:20:17 GMTblockedblocked
81.153.251.x/242023-06-14 22:41:40 GMTrewrittenrewritten
81.154.126.x/242023-07-24 12:29:35 GMTrewrittenrewritten
81.155.54.x/242023-10-19 22:25:26 GMTrewrittenrewritten
81.157.126.x/242023-11-12 20:01:49 GMTrewrittenrewritten
81.158.40.x/242023-09-17 18:12:49 GMTrewrittenrewritten
81.158.78.x/242023-08-21 20:28:24 GMTrewrittenrewritten
86.129.18.x/242023-10-20 10:09:36 GMTrewrittenrewritten
86.130.52.x/242023-04-28 23:13:54 GMTrewrittenrewritten
86.132.118.x/242023-07-15 07:52:37 GMTrewrittenrewritten
86.133.131.x/242023-09-05 19:26:36 GMTrewrittenrewritten
86.133.151.x/242023-08-05 17:37:09 GMTrewrittenrewritten
86.135.129.x/242023-06-27 13:51:23 GMTrewrittenrewritten
86.137.22.x/242023-05-12 17:55:57 GMTrewrittenrewritten
86.138.113.x/242023-08-10 22:43:44 GMTblockedblocked
86.147.120.x/242023-08-09 22:18:19 GMTrewrittenrewritten
86.148.95.x/242023-05-27 20:33:31 GMTrewrittenrewritten
86.149.95.x/242023-10-21 08:27:47 GMTrewrittenrewritten
86.153.210.x/242023-05-06 00:20:37 GMTrewrittenrewritten
86.154.55.x/242023-11-05 18:55:03 GMTrewrittenrewritten
86.155.50.x/242023-06-22 07:02:46 GMTrewrittenrewritten
86.155.76.x/242023-09-28 12:14:46 GMTrewrittenrewritten
86.156.91.x/242023-08-14 19:21:41 GMTrewrittenrewritten
86.168.222.x/242023-11-12 11:13:57 GMTrewrittenrewritten
86.170.85.x/242023-10-05 13:19:57 GMTrewrittenrewritten
86.171.43.x/242023-09-01 19:55:48 GMTrewrittenrewritten
86.180.121.x/242023-03-06 11:54:03 GMTrewrittenrewritten
86.190.232.x/242023-07-02 18:24:29 GMTrewrittenrewritten
109.145.204.x/242023-10-27 15:50:37 GMTrewrittenrewritten
109.147.123.x/242023-09-21 11:07:56 GMTrewrittenrewritten
109.149.72.x/242023-10-11 10:02:37 GMTrewrittenrewritten
109.149.252.x/242023-11-03 16:57:26 GMTrewrittenrewritten
109.152.12.x/242023-04-06 19:48:18 GMTrewrittenrewritten
109.159.53.x/242023-09-14 05:40:22 GMTrewrittenrewritten
147.148.63.x/242023-09-10 20:27:50 GMTrewrittenrewritten
147.148.64.x/242023-11-03 13:07:17 GMTrewrittenrewritten
159.180.114.x/242023-07-23 10:21:15 GMTrewrittenrewritten
213.1.18.x/242023-09-19 22:50:34 GMTrewrittenrewritten
2a00:23c5:caxx::/402023-10-21 08:27:47 GMTblockedblocked
2a00:23c5:ddxx::/402023-07-15 14:06:58 GMTblockedblocked
2a00:23c6:95xx::/402023-04-06 19:48:18 GMTblockedblocked
2a00:23c8:22xx::/402023-12-01 21:29:20 GMTblockedblocked
2a00:23c8:5dxx::/402023-11-25 17:29:07 GMTblockedblocked

Address Space Announcement History

The customer cone for 2856 is too large for a prefix list to be useful.

Last Modified