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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
20727042025-12-03 16:27:16128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20726812025-12-03 15:44:55128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20726672025-12-03 15:22:33128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20726612025-12-03 15:10:10128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20726582025-12-03 15:04:53162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20722552025-12-02 21:07:24128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20722192025-12-02 19:44:24162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20721742025-12-02 17:46:15128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20719482025-12-02 11:45:12128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20716722025-12-01 21:38:14128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20716632025-12-01 21:25:53128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20681772025-11-25 16:38:16128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20680042025-11-25 10:37:32128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20677112025-11-24 20:18:44128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20655402025-11-20 20:39:45128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20641962025-11-18 14:54:03128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20640052025-11-18 09:29:50128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20616782025-11-13 19:32:24128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20616412025-11-13 18:50:02128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20616242025-11-13 18:27:43128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20616102025-11-13 18:15:23128.220.3.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20608102025-11-12 14:29:43128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20600582025-11-11 08:22:09128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20550492025-10-28 18:27:51162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20547272025-10-28 06:09:22128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20510272025-10-21 21:42:46128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20509272025-10-21 17:20:40162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20505902025-10-21 05:01:37128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20468382025-10-14 20:35:04128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20466462025-10-14 15:03:39128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20463482025-10-14 03:53:55128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20439072025-10-09 13:42:52162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20427462025-10-07 13:55:44128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20424822025-10-07 02:46:15128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20420972025-10-06 13:47:11128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20387952025-09-30 01:38:30128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20383262025-09-29 12:39:29128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20362482025-09-25 18:30:40162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20361192025-09-25 13:29:35162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20361152025-09-25 13:19:52162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20346352025-09-23 00:30:51128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20346192025-09-22 23:48:09128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20346102025-09-22 23:25:28128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20346032025-09-22 23:12:49128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20329242025-09-19 16:24:12162.129.250.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20311042025-09-16 17:51:53162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20306032025-09-15 22:05:12128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20305922025-09-15 21:57:35128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20304952025-09-15 19:38:06128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20290442025-09-12 15:16:27128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20270402025-09-09 16:44:18162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20263972025-09-08 18:30:26128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20247782025-09-05 14:07:54128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20241792025-09-04 13:07:39128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20238442025-09-03 20:48:46128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20230082025-09-02 15:36:47162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20229832025-09-02 14:54:18162.129.251.x/245723 (JHU)usa (United States)yesunknownblockednoneReport
20229702025-09-02 14:31:48162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20229602025-09-02 14:19:17162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20208402025-08-29 14:18:50128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20202092025-08-28 13:30:27128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20198302025-08-27 19:41:08128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20197952025-08-27 18:56:59128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20197762025-08-27 18:24:12128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20197662025-08-27 18:11:29128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20196752025-08-27 15:34:25128.220.3.x/245723 (JHU)usa (United States)yesrewrittenrewrittennoneReport
20196242025-08-27 14:03:20128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20190802025-08-26 15:08:06162.129.250.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20187632025-08-26 00:06:30128.220.35.x/245723 (JHU)usa (United States)noblockedblocked/24Report
20185742025-08-25 18:48:20162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20185652025-08-25 18:25:50162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20185592025-08-25 18:13:19162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20154052025-08-19 14:00:06128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20150982025-08-18 22:58:13128.220.35.x/245723 (JHU)usa (United States)noblockedblocked/24Report
20146942025-08-18 12:48:58128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20135652025-08-15 18:03:12162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20134812025-08-15 14:57:41162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20112122025-08-11 21:49:55128.220.35.x/245723 (JHU)usa (United States)noblockedblocked/24Report
20083502025-08-06 16:59:31162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20083432025-08-06 16:47:02162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20083352025-08-06 16:19:30162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20072002025-08-04 20:41:42128.220.35.x/245723 (JHU)usa (United States)noblockedblocked/24Report
20071642025-08-04 19:58:30128.220.35.x/245723 (JHU)usa (United States)noblockedblocked/24Report
20071592025-08-04 19:49:56162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20071492025-08-04 19:35:17128.220.35.x/245723 (JHU)usa (United States)noblockedblocked/24Report
20071402025-08-04 19:22:03128.220.35.x/245723 (JHU)usa (United States)noblockedblocked/24Report
20071292025-08-04 19:07:24162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20071162025-08-04 18:44:52162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20071122025-08-04 18:32:20162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20042072025-07-30 13:34:28128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
20030612025-07-28 18:13:59128.220.35.x/245723 (JHU)usa (United States)noblockedblocked/24Report
20015052025-07-25 14:00:23162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
20010492025-07-24 18:33:38128.220.35.x/245723 (JHU)usa (United States)noblockedblocked/24Report
20002122025-07-23 12:26:12128.220.159.x/245723 (JHU)usa (United States)yesrewrittenblocked/16Report
19998622025-07-22 20:10:54162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
19998512025-07-22 19:48:24162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
19998432025-07-22 19:35:53162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
19990652025-07-21 16:59:20162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
19990482025-07-21 16:16:50162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport
19990372025-07-21 15:54:18162.129.251.x/245723 (JHU)usa (United States)yesblockedblockednoneReport

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