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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
21416892026-04-07 14:16:57151.247.209.x/2457043 (HOSTKEY-AS)irn (Iran)noblockedblocked/24Report
21388252026-04-01 17:42:2482.23.177.x/2457043 (HOSTKEY-AS)gbr (United Kingdom)noblockedblocked/24Report
21380442026-03-31 13:09:44151.247.209.x/2457043 (HOSTKEY-AS)irn (Iran)noblockedblocked/24Report
21351992026-03-26 08:54:11151.247.209.x/2457043 (HOSTKEY-AS)irn (Iran)noblockedblocked/24Report
21351922026-03-26 08:36:56151.247.209.x/2457043 (HOSTKEY-AS)irn (Iran)noblockedblocked/24Report
21320262026-03-20 13:35:14151.247.209.x/2457043 (HOSTKEY-AS)irn (Iran)noblockedblocked/24Report
21283452026-03-13 12:28:01151.247.209.x/2457043 (HOSTKEY-AS)irn (Iran)noblockedblocked/24Report
21283122026-03-13 11:44:43151.247.209.x/2457043 (HOSTKEY-AS)irn (Iran)noblockedblocked/24Report
21283102026-03-13 11:43:47151.247.209.x/2457043 (HOSTKEY-AS)irn (Iran)noblockedblocked/24Report
20290342025-09-12 15:05:165.39.219.x/2457043 (HOSTKEY-AS)nld (Netherlands)yesunknownunknownnoneReport
20290312025-09-12 15:03:115.39.219.x/2457043 (HOSTKEY-AS)nld (Netherlands)yesblockedrewrittennoneReport
18918892025-01-11 11:43:325.39.221.x/2457043 (HOSTKEY-AS)nld (Netherlands)noblockedblocked/25Report
18918472025-01-11 09:29:595.39.221.x/2457043 (HOSTKEY-AS)nld (Netherlands)noblockedblocked/25Report
18916722025-01-10 20:32:135.39.221.x/2457043 (HOSTKEY-AS)nld (Netherlands)noblockedblocked/25Report
13767822022-06-06 23:22:4246.17.101.x/2457043 (HOSTKEY-AS)nld (Netherlands)noblockedblocked/26Report
13730602022-05-30 22:15:3746.17.101.x/2457043 (HOSTKEY-AS)nld (Netherlands)noblockedblocked/26Report
13693882022-05-23 21:08:5146.17.101.x/2457043 (HOSTKEY-AS)nld (Netherlands)noblockedblocked/26Report
13655822022-05-16 20:01:5046.17.101.x/2457043 (HOSTKEY-AS)nld (Netherlands)noblockedblocked/26Report
13608082022-05-09 17:41:4246.17.101.x/2457043 (HOSTKEY-AS)nld (Netherlands)noblockedblocked/26Report
559062016-04-13 06:00:00185.70.184.x/2457043 (HOSTKEY-AS)nld (Netherlands)noblockedblocked/22Report

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