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Recent tests

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
21127902026-02-13 17:30:162607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
21115332026-02-11 17:15:082607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
21066872026-02-03 18:49:452607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20948012026-01-13 19:08:012607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20915382026-01-07 17:25:302607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20913862026-01-07 12:58:332607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20872942025-12-30 13:11:232607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20654372025-11-20 16:49:002607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20650242025-11-19 20:04:442607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20648602025-11-19 15:37:412607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20647832025-11-19 12:58:492607:fb90:76xx::/4021928 (T-MOBILE-AS21928)pri (Puerto Rico)noblockedblocked/64Report
20590762025-11-07 17:42:032607:fb90:76xx::/4021928 (T-MOBILE-AS21928)usa (United States)noblockedblocked/64Report
20588432025-11-06 18:46:582607:fb90:76xx::/4021928 (T-MOBILE-AS21928)usa (United States)noblockedblocked/64Report
20588392025-11-06 18:34:252607:fb90:76xx::/4021928 (T-MOBILE-AS21928)usa (United States)noblockedblocked/64Report
20578492025-11-03 17:05:522607:fb90:76xx::/4021928 (T-MOBILE-AS21928)usa (United States)noblockedblocked/64Report

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