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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
19922482025-07-09 08:43:43153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19883432025-07-02 07:35:53153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19840482025-06-24 22:17:18153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19837012025-06-24 10:45:30153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19836952025-06-24 10:22:13153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19836172025-06-24 06:42:15153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19671732025-05-25 00:51:04153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19629212025-05-17 23:43:18153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19606462025-05-14 11:37:26153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19605482025-05-14 07:31:01153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19559092025-05-06 22:12:58153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19519672025-04-29 11:52:48153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19512862025-04-28 06:11:58153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19481302025-04-22 11:45:55153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19480442025-04-22 09:12:02153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19446532025-04-15 08:03:05153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19410752025-04-08 06:55:10153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19371372025-04-01 05:05:34153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19332632025-03-25 03:57:27153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19294102025-03-17 22:15:33153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
19290802025-03-17 11:59:07153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18738352024-12-07 05:00:44153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18738272024-12-07 04:14:50153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18698252024-11-30 03:08:10153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18659222024-11-23 08:14:27153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18657992024-11-23 01:08:22153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18648842024-11-21 11:49:12153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18647672024-11-21 06:59:22153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18643122024-11-20 11:37:46153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18643102024-11-20 11:35:29153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18643092024-11-20 11:32:24153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18643002024-11-20 11:18:58153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport
18642992024-11-20 11:17:20153.139.203.x/244713 (OCN)jpn (Japan)yesrewrittenrewrittennoneReport

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