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Result filters: AS numbers or (partial) names: Country codes: Only show non-remediated spoofing
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.

SessionTimestamp (UTC)Client IP BlockASNCountryNATOutbound
Private
Status
Outbound
Routable
Status
Adj Spoof
Prefix Len
Results
21138432026-02-15 17:36:562607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
21127462026-02-13 15:54:092607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
21122732026-02-12 19:27:032607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
21120072026-02-12 12:29:272607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
21045482026-01-30 18:05:342607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
21044512026-01-30 14:32:442607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
21027772026-01-27 18:26:322607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20916042026-01-07 19:50:112607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20908772026-01-06 17:55:222607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20833632025-12-22 13:06:052607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20821572025-12-19 17:42:142607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20739572025-12-05 21:21:282607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20739122025-12-05 19:58:102607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20738692025-12-05 18:20:362607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20733652025-12-04 20:20:292607:fb90:cdxx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report

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