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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
18569992024-11-07 07:42:342601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18530892024-10-31 06:35:542601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18495302024-10-24 05:27:162601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18455722024-10-17 02:39:142601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18416662024-10-09 15:58:312601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18378412024-10-02 11:04:412601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18354982024-09-27 18:48:412601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18341032024-09-25 09:58:002601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18304182024-09-18 03:03:012601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18267632024-09-11 01:56:172601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18245142024-09-06 16:48:142601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18242342024-09-06 03:03:052601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18242292024-09-06 02:56:052601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18230202024-09-04 00:49:322601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18193702024-08-27 21:17:572601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18156592024-08-20 13:44:372601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18119632024-08-13 07:59:492601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18083902024-08-06 06:52:502601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18047452024-07-30 05:45:492601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
18013632024-07-23 04:39:082601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17968712024-07-15 02:27:242601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17929772024-07-08 01:20:282601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17891982024-07-01 00:13:402601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17847782024-06-22 22:20:542601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17808222024-06-15 21:14:122601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17784152024-06-11 19:15:122601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17754732024-06-06 09:12:412601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17715912024-05-30 08:05:462601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17677162024-05-23 06:58:582601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17640942024-05-16 04:29:292601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17604952024-05-09 03:22:462601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17570632024-05-02 01:44:322601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17551742024-04-28 03:28:242601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17545052024-04-26 18:54:042601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17512792024-04-20 11:47:212601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17480652024-04-14 02:39:342601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17477882024-04-13 10:40:452601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17441142024-04-06 09:34:102601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17406452024-03-30 08:27:372601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17373272024-03-23 07:20:402601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17339292024-03-16 06:13:532601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17311222024-03-10 21:39:522601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17303842024-03-08 21:31:382601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17266652024-03-01 20:25:012601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17228462024-02-23 17:20:212601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17194412024-02-16 16:13:402601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17160312024-02-09 15:07:042601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17123052024-02-02 08:22:252601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17123032024-02-02 08:19:522601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17123012024-02-02 08:09:142601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
17122902024-02-02 07:27:442601:5cf:41xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report

All results shown
Last Modified