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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
20731162025-12-04 11:04:1141.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
20731162025-12-04 11:04:112a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
20606252025-11-12 09:35:3141.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
20606252025-11-12 09:35:312a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
20426892025-10-07 12:29:3241.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
20426892025-10-07 12:29:322a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
20365002025-09-26 06:05:5641.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
20365002025-09-26 06:05:562a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
20314242025-09-17 08:21:1141.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
20314242025-09-17 08:21:112a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
20222012025-09-01 11:42:3541.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
20222012025-09-01 11:42:352a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
19853412025-06-26 20:22:3541.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
19853412025-06-26 20:22:352a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
19778732025-06-13 10:25:1341.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
19778732025-06-13 10:25:132a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
19778672025-06-13 10:17:5341.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
19778672025-06-13 10:17:532a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
19593992025-05-12 17:36:4241.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
19593992025-05-12 17:36:422a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
19593932025-05-12 17:18:1241.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
19593932025-05-12 17:18:122a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
19386142025-04-03 14:56:4441.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
19386142025-04-03 14:56:442a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
19308472025-03-20 09:20:5341.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
19308472025-03-20 09:20:532a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
19308402025-03-20 09:06:3441.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
19308402025-03-20 09:06:342a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
19187102025-02-27 20:48:3241.66.119.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesblockedblockednoneReport
19187102025-02-27 20:48:322a04:9546:1fxx::/4051265 (MASSRESPONSE-AS2)aut (Austria)nounknownunknownnoneReport
15215992023-02-04 06:56:3162.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
15093992023-01-11 21:12:0962.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
15093762023-01-11 20:40:3862.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
15092872023-01-11 18:14:3262.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
15087192023-01-10 21:08:4862.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
15022992022-12-30 02:54:3262.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14975582022-12-20 22:14:3762.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14918332022-12-10 00:25:0462.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14912812022-12-08 23:33:5262.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14912582022-12-08 22:04:5962.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14542712022-10-10 06:05:4462.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14387852022-09-12 04:45:0262.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14387452022-09-12 03:08:3562.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14325982022-09-02 21:30:4662.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14325202022-09-02 18:47:5562.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
14321822022-09-02 06:28:4862.240.134.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport
3768702017-12-20 23:39:07185.69.244.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesreceivedreceived/16Report
3768532017-12-20 22:58:26185.69.244.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesreceivedreceived/16Report
3438012017-10-29 20:30:34185.69.244.x/2451265 (MASSRESPONSE-AS2)aut (Austria)yesrewrittenrewrittennoneReport

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