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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
19657502025-05-22 15:57:432a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
19657412025-05-22 15:39:082a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
19406592025-04-07 13:07:072a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
19329862025-03-24 16:28:272a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
19329682025-03-24 15:51:262a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
19329632025-03-24 15:41:392a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
19207192025-03-03 16:04:462a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
18991912025-01-24 14:32:352a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
18482932024-10-22 08:11:112a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
18463382024-10-18 13:13:092a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
18463262024-10-18 13:02:392a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
18220692024-09-02 11:54:242a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
18169162024-08-22 15:43:522a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
18169132024-08-22 15:34:172a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
16993572024-01-08 11:17:182a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
16860722023-12-12 10:35:222a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
16830142023-12-06 12:11:532a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
16669142023-11-06 09:05:512a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
16646102023-11-01 17:42:232a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
16646012023-11-01 17:31:332a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
16645932023-11-01 17:13:592a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
16605462023-10-25 10:54:032a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report
16452082023-09-26 07:39:462a04:8400:c5xx::/40207176 (OPENFIBER)nld (Netherlands)noblockedblocked/48Report

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