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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
19856292025-06-27 11:20:31131.155.203.x/241161 (AS-TUE)nld (Netherlands)noblockedblockednoneReport
19764962025-06-11 10:47:25131.155.203.x/241161 (AS-TUE)nld (Netherlands)noblockedblockednoneReport
19684702025-05-27 09:57:50131.155.203.x/241161 (AS-TUE)nld (Netherlands)noblockedblockednoneReport
19684622025-05-27 09:44:52131.155.203.x/241161 (AS-TUE)nld (Netherlands)noblockedblockednoneReport
19684482025-05-27 08:49:11131.155.203.x/241161 (AS-TUE)nld (Netherlands)noblockedblockednoneReport
19619592025-05-16 06:59:05131.155.203.x/241161 (AS-TUE)nld (Netherlands)noblockedblockednoneReport

All results shown
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