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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
19372922025-04-01 11:46:532600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19372652025-04-01 11:02:132600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19332292025-03-25 02:09:422600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19332222025-03-25 01:56:472600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19294632025-03-18 00:39:342600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19251482025-03-10 23:31:542600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19251162025-03-10 22:11:572600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19208512025-03-03 20:57:162600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19208322025-03-03 20:14:212600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19208182025-03-03 19:51:232600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19208112025-03-03 19:38:232600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19165542025-02-24 18:30:342600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19124542025-02-17 17:22:482600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19072512025-02-08 00:13:062600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19072412025-02-07 23:30:252600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19072332025-02-07 23:07:442600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19072312025-02-07 22:55:032600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19071212025-02-07 18:53:322600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19070902025-02-07 18:09:542600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19070752025-02-07 17:57:142600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19069832025-02-07 15:21:342600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19069462025-02-07 14:23:542600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19066172025-02-06 21:21:232600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19065962025-02-06 20:38:422600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19065852025-02-06 20:16:032600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19065792025-02-06 20:03:222600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19057232025-02-05 13:07:312600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
19028372025-01-31 10:53:422600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/56Report
15714172023-05-08 16:32:302600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/64Report
15714132023-05-08 16:29:462600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/64Report
15212872023-02-03 18:47:312600:4041:43xx::/40701 (UUNET)usa (United States)noblockedblocked/64Report

All results shown
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