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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
11907572021-08-03 19:33:462601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
11152192021-03-31 18:01:032601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
9779082020-09-08 20:32:462601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
9669712020-09-01 18:30:062601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
9609332020-08-25 16:05:582601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
9516062020-08-17 16:35:572601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
9458442020-08-10 15:28:592601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
9428402020-08-05 22:01:372601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/96Report
9374982020-07-29 20:54:432601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
9320272020-07-22 18:48:272601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/72Report
9079172020-06-07 19:15:212601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/96Report
8975442020-05-19 17:45:522601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
8974222020-05-19 13:57:562601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
8891742020-05-04 17:47:032601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
8846732020-04-26 16:00:412601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/96Report
8775662020-04-14 00:36:522601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
8728382020-04-05 16:17:392601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
8677192020-03-26 23:37:002601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
8633162020-03-19 00:46:042601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/96Report
8586322020-03-11 01:10:512601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report
8546712020-03-03 23:14:392601:340:c5xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/104Report

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