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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
10954462021-03-01 01:46:322601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
10954422021-03-01 01:34:562601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
7428932019-08-31 22:40:502601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
6124132019-01-24 22:24:282601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
5313642018-09-06 20:16:282601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
5274712018-08-30 19:07:322601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
5039972018-07-18 18:44:052601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
5000692018-07-11 17:27:222601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4955192018-07-04 02:27:332601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4914352018-06-27 01:10:472601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4873392018-06-19 23:54:052601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4833342018-06-12 22:37:172601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4792412018-06-05 21:20:272601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4749752018-05-29 20:03:322601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4705482018-05-22 18:47:132601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4659152018-05-15 17:30:472601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4612542018-05-08 16:15:012601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4564512018-05-01 14:58:432601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4560152018-04-30 21:38:042601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4516232018-04-23 20:21:452601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4471172018-04-16 19:05:102601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4426702018-04-09 17:48:242601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4383472018-04-02 16:31:452601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4342712018-03-26 15:15:102601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4342702018-03-26 15:09:222601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4293182018-03-18 06:44:172601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4247962018-03-11 05:24:152601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4207072018-03-04 04:06:492601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/120Report
4164442018-02-25 02:50:182601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4123832018-02-18 01:14:382601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
4081672018-02-10 23:56:162601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/120Report
4040242018-02-03 22:39:382601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3978462018-01-25 04:06:162601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
3932062018-01-18 02:49:412601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3888142018-01-11 01:33:142601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3843702018-01-04 00:16:552601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3804532017-12-27 23:00:232601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3758152017-12-19 10:32:132601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3711552017-12-12 08:53:202601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3664882017-12-05 07:36:482601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3618922017-11-28 06:20:112601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3577882017-11-21 05:02:422601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3531862017-11-14 03:42:302601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3489212017-11-07 02:25:232601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3445762017-10-31 01:08:242601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3403272017-10-23 23:51:462601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3357082017-10-16 22:35:002601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3327742017-10-11 23:15:462601:1c2:51xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report

All results shown
Last Modified