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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
16214402023-08-12 21:51:2273.21.129.x/247922 (COMCAST-7922)usa (United States)yesrewrittenrewrittennoneReport
16170122023-08-04 10:30:2173.21.129.x/247922 (COMCAST-7922)usa (United States)yesrewrittenrewrittennoneReport
16081142023-07-18 01:40:1773.21.129.x/247922 (COMCAST-7922)usa (United States)yesrewrittenrewrittennoneReport
16040422023-07-10 18:14:0873.21.129.x/247922 (COMCAST-7922)usa (United States)yesrewrittenrewrittennoneReport
16030072023-07-08 16:11:5873.21.129.x/247922 (COMCAST-7922)usa (United States)yesrewrittenrewrittennoneReport
15949422023-06-23 01:23:2373.21.129.x/247922 (COMCAST-7922)usa (United States)yesrewrittenrewrittennoneReport
15886192023-06-10 16:57:5573.21.129.x/247922 (COMCAST-7922)usa (United States)yesrewrittenrewrittennoneReport
15819602023-05-28 22:56:5673.21.129.x/247922 (COMCAST-7922)usa (United States)yesrewrittenrewrittennoneReport
15774092023-05-20 05:17:4973.21.129.x/247922 (COMCAST-7922)usa (United States)yesrewrittenrewrittennoneReport

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