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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
7145602019-07-12 08:09:39128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
7099062019-07-05 06:46:54128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
7068852019-06-30 08:08:11128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
7028912019-06-23 06:46:24128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6989592019-06-16 05:03:42128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6945342019-06-08 16:26:12128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6915012019-06-03 15:36:05128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6852572019-05-23 15:39:13128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6845652019-05-22 15:18:48128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6800972019-05-15 11:15:48128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6758822019-05-08 09:35:23128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6742472019-05-05 19:17:47128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6712802019-04-30 17:08:58128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6695202019-04-27 12:02:28128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6670352019-04-23 15:13:13128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6629292019-04-16 13:43:13128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6583912019-04-09 12:36:49128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6557112019-04-04 19:19:55128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6542522019-04-02 16:55:14128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6532742019-04-01 05:59:08128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6525342019-03-30 15:34:20128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6483252019-03-23 13:08:49128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6477902019-03-22 14:31:11128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6427732019-03-15 08:50:33128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6427272019-03-15 07:24:49128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6391092019-03-10 16:13:16128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6339402019-03-02 17:38:24128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6293932019-02-23 14:31:08128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6290532019-02-22 21:36:36128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6290032019-02-22 20:30:31128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesblockedblockednoneReport
6289382019-02-22 18:21:11128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesunknownunknownnoneReport
6289232019-02-22 18:01:42128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesunknownunknownnoneReport
6289192019-02-22 17:54:58128.127.39.x/2412871 (NL-CONCEPTS)nld (Netherlands)yesunknownunknownnoneReport

All results shown
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