Spoofing Information for AS 4637 (ASN-TELSTRA-GLOBAL)

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
134.159.14.x/242024-07-24 15:37:35 GMTreceivedreceived
134.159.209.x/242019-03-01 02:00:14 GMTblockedblocked

Customers of AS 4637 we have spoofer tests from

This is the list of directly connected customers of AS 4637 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
133398 (TELE-AS)hkg (Hong Kong)322AS 133398 testsreceived
40676 (AS40676)usa (United States)3634227AS 40676 testsreceived
9246 (GTA-AP)gum (Guam [US])247AS 9246 testsblocked
38442 (VODAFONEFIJI-AS-FJ)fji (Fiji)7521AS 38442 testsblocked
2527 (So-net)jpn (Japan)994AS 2527 testsblocked
14593 (SPACEX-STARLINK)deu (Germany)1661AS 14593 testsblocked
14061 (DIGITALOCEAN-ASN)aus (Australia)2042AS 14061 testsblocked
9500 (VODAFONE-TRANSIT-AS)nzl (New Zealand)35147AS 9500 testsblocked
16276 (OVH)deu (Germany)66356AS 16276 testsblocked
9658 (ETPI-IDS-AS-AP)phl (Philippines)2231206AS 9658 testsblocked
3786 (LGDACOM)kor (South Korea)6217471AS 3786 testsblocked
16509 (AMAZON-02)usa (United States)647832AS 16509 testsblocked
4809 (CHINATELECOM-CORE-WAN-CN2)chn (China)11822462AS 4809 testsblocked
4657 (STARHUB-INTERNET)sgp (Singapore)192061302AS 4657 testsblocked
1221 (ASN-TELSTRA)aus (Australia)308981715AS 1221 testsblocked
20473 (AS-CHOOPA)usa (United States)887599840AS 20473 testsblocked
13335 (CLOUDFLARENET)usa (United States)10472511290AS 13335 testsblocked
9498 (BBIL-AP)ind (India)15946319141AS 9498 testsblocked

Address Space Announcement History

The customer cone for 4637 is too large for a prefix list to be useful.

Last Modified