Spoofing Information for AS 53181

Spoofing status per IP block for last year of data

(Results for all dates also available.)

No spoofing data found for ASN 53181

Customers of AS 53181 we have spoofer tests from

This is the list of directly connected customers of AS 53181 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.

ASN	Country	Number of Prefixes in Customer Cone	Number of ASes in Customer Cone	Recent tests	Spoof Routable
270436	bra (Brazil)	2	0	AS 270436 tests	blocked
264075	bra (Brazil)	7	0	AS 264075 tests	blocked
265369	bra (Brazil)	10	1	AS 265369 tests	blocked
262365	bra (Brazil)	25	11	AS 262365 tests	blocked
28171	bra (Brazil)	51	12	AS 28171 tests	blocked

Address Space Announcement History

The customer cone for 53181 is too large for a prefix list to be useful.