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Spoofing Information for AS 6461 (ZAYO-6461)

Spoofing status per IP block (all dates)

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
64.124.131.x/242017-03-09 23:55:31 GMTblockedblocked
64.124.174.x/242021-08-25 14:14:05 GMTblockedblocked
64.125.57.x/242021-06-17 16:28:55 GMTrewrittenrewritten
64.125.109.x/242020-02-14 01:18:40 GMTblockedblocked
64.125.170.x/242018-10-22 15:01:33 GMTblockedblocked
94.31.38.x/242017-06-07 14:39:28 GMTrewrittenrewritten
128.177.104.x/242017-11-04 17:12:23 GMTblockedblocked
173.46.64.x/242019-02-20 18:53:41 GMTrewrittenreceived
173.46.67.x/242016-10-24 05:15:23 GMTrewrittenrewritten
207.235.139.x/242024-01-11 18:04:17 GMTrewrittenblocked
208.184.3.x/242019-10-01 22:38:03 GMTblockedblocked
208.184.53.x/242017-10-24 23:47:43 GMTblockedreceived
208.184.100.x/242018-09-13 21:50:20 GMTblockedreceived
208.184.224.x/242019-04-15 13:25:21 GMTblockedreceived
208.185.18.x/242020-03-04 18:28:00 GMTrewrittenreceived
208.185.23.x/242017-09-07 13:09:46 GMTblockedblocked
208.185.155.x/242017-02-23 21:26:47 GMTblockedblocked
209.66.70.x/242019-12-14 18:41:21 GMTblockedblocked
209.66.74.x/242018-05-02 12:46:47 GMTblockedblocked
209.66.79.x/242019-11-07 16:25:19 GMTblockedblocked
209.133.84.x/242017-08-12 21:07:05 GMTblockedblocked
209.183.190.x/242021-02-03 18:31:42 GMTunknownblocked
209.249.11.x/242017-03-04 21:19:37 GMTblockedblocked
209.249.118.x/242017-07-20 23:09:34 GMTblockedblocked

Customers of AS 6461 we have spoofer tests from

This is the list of directly connected customers of AS 6461 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
207176 (OPENFIBER)nld (Netherlands)70AS 207176 testsreceived
27364 (ACS-INTERNET)usa (United States)3812AS 27364 testsreceived
61461usa (United States)7724AS 61461 testsreceived
20119 (ARROW)can (Canada)19127AS 20119 testsreceived
4637 (ASN-TELSTRA-GLOBAL)hkg (Hong Kong)14122412739AS 4637 testsreceived
10745 (ARIN-ASH-CHA)usa (United States)40AS 10745 testsblocked
11039 (GWU)usa (United States)50AS 11039 testsblocked
8587 (Infracom-AS)nld (Netherlands)110AS 8587 testsblocked
12876 (AS12876)fra (France)110AS 12876 testsblocked
1403 (EBOX)can (Canada)190AS 1403 testsblocked
56478 (BCUBE-AS)gbr (United Kingdom)240AS 56478 testsblocked
63182 (RAPIDSCALE)usa (United States)320AS 63182 testsblocked
8399 (SEWAN-FR)fra (France)340AS 8399 testsblocked
19165 (WEBPASS)usa (United States)430AS 19165 testsblocked
21928 (T-MOBILE-AS21928)usa (United States)452AS 21928 testsblocked
22616 (ZSCALER-SJC1)usa (United States)501AS 22616 testsblocked
11915 (US-TELEPACIFIC)usa (United States)613AS 11915 testsblocked
5645 (TEKSAVVY)can (Canada)749AS 5645 testsblocked
13285 (OPALTELECOM-AS)gbr (United Kingdom)11716AS 13285 testsblocked
14593 (SPACEX-STARLINK)chl (Chile)1621AS 14593 testsblocked
9500 (VODAFONE-TRANSIT-AS)nzl (New Zealand)51948AS 9500 testsblocked
13213 (UK2NET-AS)gbr (United Kingdom)5499AS 13213 testsblocked
11232 (MIDCO-NET)usa (United States)150361AS 11232 testsblocked
3737 (AS-PTD)usa (United States)157246AS 3737 testsblocked
13999mex (Mexico)207142AS 13999 testsblocked
18734mex (Mexico)7814211AS 18734 testsblocked
812 (ROGERS-COMMUNICATIONS)can (Canada)183931242AS 812 testsblocked

Address Space Announcement History

The customer cone for 6461 is too large for a prefix list to be useful.

Last Modified