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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
11279182021-04-22 02:15:032601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11250732021-04-17 03:32:072601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11212452021-04-10 20:07:332601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11203432021-04-09 04:23:422601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11168542021-04-03 15:53:102601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11165412021-04-02 21:57:372601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11127142021-03-27 20:45:322601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11105602021-03-24 06:35:312601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11029572021-03-11 23:20:302601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11021532021-03-10 20:11:262601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11009432021-03-09 04:20:022601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
11009172021-03-09 02:50:382601:4c3:81xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report

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