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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
20707282025-11-30 06:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20668592025-11-23 06:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20628922025-11-16 06:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20593862025-11-09 06:29:212600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20574672025-11-02 06:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20536352025-10-26 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20494342025-10-19 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20453412025-10-12 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20415162025-10-05 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20377392025-09-28 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20336612025-09-21 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20297962025-09-14 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20256092025-09-07 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20216652025-08-31 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20178842025-08-24 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20141542025-08-17 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20102662025-08-10 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20063522025-08-03 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
20023732025-07-27 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19983312025-07-20 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19944482025-07-13 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19904752025-07-06 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19865812025-06-29 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19826012025-06-22 07:27:032600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19787432025-06-15 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19746752025-06-08 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19673542025-05-25 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19631232025-05-18 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19585582025-05-11 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19546222025-05-04 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19509082025-04-27 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19471952025-04-20 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19437882025-04-13 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19401122025-04-06 07:27:012600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19362012025-03-30 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
19323232025-03-23 07:27:022600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
6152892019-01-30 05:08:302600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
6152882019-01-30 05:01:462600:1700:6bxx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report

All results shown
Last Modified