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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
9213682020-07-01 16:25:082600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4660902018-05-16 01:09:362600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4641772018-05-12 20:16:582600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4624292018-05-10 01:09:172600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4574982018-05-03 00:02:382600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4530792018-04-25 22:55:432600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4486352018-04-18 21:49:052600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4441732018-04-11 20:42:232600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4440332018-04-11 16:49:262600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4436292018-04-11 04:09:312600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4393102018-04-04 03:02:502600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4352402018-03-28 01:56:142600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4309562018-03-20 23:18:322600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4296782018-03-18 23:03:492600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4290752018-03-17 18:19:052600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4245502018-03-10 16:57:262600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4235082018-03-08 20:45:312600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4194272018-03-01 19:38:502600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4151962018-02-22 18:32:092600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4118392018-02-16 20:35:462600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4075032018-02-09 18:49:002600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
4033452018-02-02 17:02:172600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3985422018-01-26 05:06:052600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3940292018-01-19 02:51:552600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3895282018-01-12 01:45:142600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3850392018-01-05 00:38:332600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3810302017-12-28 23:16:522600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3789722017-12-25 01:27:342600:1700:41xx::/407018 (ATT-INTERNET4)gbr (United Kingdom)nounknownunknownnoneReport
3789702017-12-25 01:17:442600:1700:41xx::/407018 (ATT-INTERNET4)prt (Portugal)nounknownunknownnoneReport
3774912017-12-21 22:10:032600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3730862017-12-14 21:03:242600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3722872017-12-13 19:44:432600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3675372017-12-06 18:38:022600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3629272017-11-29 17:31:172600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/72Report
3586762017-11-22 16:24:352600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3543302017-11-15 15:17:492600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3499142017-11-08 14:11:102600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report
3454872017-11-01 13:04:382600:1700:41xx::/407018 (ATT-INTERNET4)usa (United States)noblockedblocked/64Report

All results shown
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