Spoofing Information for AS 577 (BACOM)

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
64.228.196.x/242022-11-23 04:01:18 GMTblockedblocked
65.93.24.x/242022-12-31 18:30:12 GMTblockedblocked
65.93.26.x/242022-06-29 15:06:36 GMTrewrittenrewritten
65.93.27.x/242022-10-14 21:31:22 GMTblockedblocked
67.69.69.x/242022-06-28 13:57:35 GMTrewrittenrewritten
69.157.67.x/242023-02-25 19:45:46 GMTrewrittenrewritten
70.31.50.x/242022-12-06 22:35:36 GMTblockedblocked
70.31.68.x/242023-06-06 15:41:51 GMTblockedblocked
70.31.70.x/242023-03-03 14:55:04 GMTrewrittenrewritten
70.31.71.x/242023-01-10 03:56:41 GMTrewrittenrewritten
70.48.112.x/242023-02-15 23:49:22 GMTblockedblocked
70.48.113.x/242023-05-10 15:35:49 GMTblockedblocked
70.48.114.x/242022-07-27 13:25:32 GMTblockedblocked
70.53.76.x/242023-01-15 21:17:28 GMTblockedblocked
70.54.116.x/242023-06-06 10:59:25 GMTrewrittenrewritten
70.54.118.x/242023-05-30 02:15:55 GMTrewrittenrewritten
74.12.152.x/242023-04-11 17:16:10 GMTblockedblocked
74.14.201.x/242023-05-31 02:11:20 GMTblockedblocked
74.15.36.x/242023-05-16 23:58:26 GMTblockedblocked
76.71.217.x/242022-07-08 20:20:34 GMTrewrittenrewritten
142.113.112.x/242023-05-09 22:51:46 GMTblockedblocked
142.113.228.x/242023-04-25 20:38:48 GMTblockedblocked
142.113.238.x/242023-02-14 08:24:29 GMTblockedblocked
142.113.239.x/242022-10-03 07:04:39 GMTblockedblocked
142.114.145.x/242022-09-26 05:58:09 GMTblockedblocked
142.114.152.x/242022-08-16 03:05:03 GMTblockedblocked
142.116.127.x/242022-09-11 21:35:27 GMTrewrittenrewritten
142.117.91.x/242022-06-12 14:02:31 GMTrewrittenrewritten
142.120.212.x/242022-11-28 14:16:51 GMTrewrittenrewritten
142.127.157.x/242022-11-21 13:10:08 GMTrewrittenrewritten
142.127.163.x/242022-09-25 23:48:37 GMTrewrittenrewritten
142.186.155.x/242022-10-31 08:21:58 GMTrewrittenrewritten
142.189.225.x/242022-08-02 00:52:14 GMTblockedblocked
184.148.239.x/242023-04-10 09:51:14 GMTrewrittenrewritten
184.151.37.x/242022-07-22 13:04:15 GMTrewrittenrewritten
206.172.132.x/242023-01-28 18:50:59 GMTblockedblocked
2605:b100:3xx::/402022-06-28 13:42:56 GMTblockedblocked

Customers of AS 577 we have spoofer tests from

This is the list of directly connected customers of AS 577 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
7122 (MTS-ASN)can (Canada)9521AS 7122 testsreceived
5645 (TEKSAVVY)can (Canada)10713AS 5645 testsblocked
803 (SASKTEL)can (Canada)15223AS 803 testsblocked
11260 (EASTLINK-HSI)can (Canada)109270AS 11260 testsblocked

Address Space Announcement History

The customer cone for 577 is too large for a prefix list to be useful.

Last Modified