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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
10358322020-11-26 18:46:162601:500:83xx::/407922 (COMCAST-7922)usa (United States)nounknownunknownnoneReport
4895532018-06-23 18:25:212601:500:83xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3403342017-10-24 00:09:582601:500:83xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
1232852017-01-05 05:23:292601:500:83xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1231562017-01-04 23:25:032601:500:83xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1091072016-12-11 21:01:452601:500:83xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1036482016-12-02 22:55:352601:500:83xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
762772016-10-08 01:23:092601:500:83xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport

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