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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
20015chl (Chile)30Historyreceived
52228cri (Costa Rica)131Historyreceived
33182 (DIMENOC)usa (United States)64244Historyreceived
27774hti (Haiti)10Historyblocked
52260hti (Haiti)41Historyblocked
10269blz (Belize)71Historyblocked
10292 (CWJAM)jam (Jamaica)342Historyblocked
30689 (FLOW-NET)jam (Jamaica)825Historyblocked
8048ven (Venezuela)15226Historyblocked
61440pan (Panama)1742Historyblocked
11139 (CWDOM)atg (Antigua and Barbuda)1775Historyblocked
27759hti (Haiti)24104Historyblocked
27665tto (Trinidad and Tobago)244913Historyblocked
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