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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
20602672025-11-11 15:57:182a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
20179302025-08-24 10:54:202a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
20013002025-07-25 06:54:062a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
19855812025-06-27 08:21:492a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
19643492025-05-20 13:16:552a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
19519972025-04-29 12:38:222a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
19501962025-04-25 20:55:482a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
19327572025-03-24 10:43:472a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
19291862025-03-17 14:35:112a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
19244642025-03-09 21:09:222a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
18722822024-12-04 13:08:042a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
18649242024-11-21 13:05:382a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
18638692024-11-19 16:44:112a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
18597522024-11-12 15:20:022a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
18225052024-09-03 05:45:462a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
17892982024-07-01 06:23:462a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report
17874772024-06-27 14:20:542a02:a420:5xx::/401136 (KPN)nld (Netherlands)noblockedblocked/64Report

All results shown
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