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Center for Applied Internet Data Analysis
Customers of 33891 we have received spoofed packets from

This page lists the directly connected customers of AS 33891 from which we hav received a spoofed packet from, ordered by the number of prefixes of an inferred Ingress ACL derived from prefix announcements for the customer recorded in 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
48800fra (France)10Historyblocked
44002 (SYS-DATACOM)cze (Czech Republic)30Historyblocked
59456 (CLOUDBROKERS-AS)aut (Austria)51Historyblocked
203833 (AT-FIRSTCOLO)aut (Austria)71Historyblocked
63473 (HostHatch-NA-AS)nld (Netherlands)140Historyblocked
198203 (ASN-ROUTELABEL)nld (Netherlands)151Historyblocked
34971 (PDDA-AS)ita (Italy)200Historyblocked
30823 (COMBAHTON)deu (Germany)265Historyblocked
21100 (ITLDC-NL)ukr (Ukraine)361Historyblocked
29182 (ISPSYSTEM-AS)rus (Russian Federation)523Historyblocked
15685 (CASABLANCA-AS)cze (Czech Republic)9326Historyblocked
24961 (MYLOC-AS)deu (Germany)1119Historyblocked
21413 (ENVIA-TEL-AS)deu (Germany)12731Historyblocked
60068 (CDN77)usa (United States)1358Historyblocked
553 (BELWUE)deu (Germany)16413Historyblocked
24940 (HETZNER-AS)deu (Germany)16613Historyblocked
16160 (SWAN)svk (Slovak Republic)37051Historyblocked
13101 (TNG-AS)deu (Germany)59868Historyblocked
43350 (NFORCE)nld (Netherlands)71251Historyblocked
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