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Center for Applied Internet Data Analysis
Customers of 23520 we have received spoofed packets from

This page lists the directly connected customers of AS 23520 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
27653hti (Haiti)21Historyreceived
33182 (DIMENOC)usa (United States)106584Historyreceived
27774hti (Haiti)10Historyblocked
40143 (UTECH-JAMAICA)jam (Jamaica)10Historyblocked
262145cri (Costa Rica)40Historyblocked
52260hti (Haiti)41Historyblocked
10269blz (Belize)124Historyblocked
52423cri (Costa Rica)180Historyblocked
27665tto (Trinidad and Tobago)4811Historyblocked
30689 (FLOW-NET)jam (Jamaica)945Historyblocked
3 (MIT-GATEWAYS)usa (United States)14910Historyblocked
8048ven (Venezuela)15627Historyblocked
27947ecu (Ecuador)19213Historyblocked
61440pan (Panama)1962Historyblocked
27759hti (Haiti)24674Historyblocked
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