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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
19818042025-06-20 15:15:332601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19735492025-06-06 00:19:592601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19610362025-05-14 21:42:372601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19603292025-05-13 21:32:022601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19548222025-05-04 19:33:372601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19543112025-05-03 16:15:172601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19543062025-05-03 15:53:502601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19415002025-04-08 23:03:322601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19363482025-03-30 16:59:132601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19299972025-03-18 20:25:042601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19243332025-03-09 14:14:462601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19239432025-03-09 02:13:292601:14d:4fxx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report

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