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

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
134.159.14.x/242024-06-12 08:55:04 GMTreceivedreceived

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)354AS 133398 testsreceived
38442 (VODAFONEFIJI-AS-FJ)fji (Fiji)7522AS 38442 testsreceived
55821 (RADIUSTELECOMS-AS-AP)phl (Philippines)154939AS 55821 testsreceived
23352 (SERVERCENTRAL)usa (United States)208374AS 23352 testsreceived
40676 (AS40676)usa (United States)2941212AS 40676 testsreceived
45758 (TTBP-AS-AP)tha (Thailand)8737473AS 45758 testsreceived
14593 (SPACEX-STARLINK)bra (Brazil)1731AS 14593 testsblocked
14061 (DIGITALOCEAN-ASN)ind (India)2032AS 14061 testsblocked
9500 (VODAFONE-TRANSIT-AS)nzl (New Zealand)50347AS 9500 testsblocked
16276 (OVH)fra (France)65757AS 16276 testsblocked
16509 (AMAZON-02)usa (United States)624030AS 16509 testsblocked
9009 (M247)jpn (Japan)7381268AS 9009 testsblocked
3786 (LGDACOM)kor (South Korea)13339490AS 3786 testsblocked
4809 (CHINATELECOM-CORE-WAN-CN2)chn (China)13538509AS 4809 testsblocked
60068 (CDN77)usa (United States)22453960AS 60068 testsblocked
4657 (STARHUB-INTERNET)sgp (Singapore)341572128AS 4657 testsblocked
1221 (ASN-TELSTRA)aus (Australia)377242293AS 1221 testsblocked
20473 (AS-CHOOPA)mex (Mexico)513865304AS 20473 testsblocked

Address Space Announcement History

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

Last Modified