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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
3019252017-08-23 04:46:092601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2247622017-05-19 12:49:232601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2245222017-05-19 06:35:522601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2174652017-05-12 05:19:342601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2101362017-05-05 04:38:212601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2073542017-05-02 18:20:592601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2038892017-04-29 14:31:202601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
1963202017-04-22 13:15:122601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
1892702017-04-15 11:59:192601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
1859542017-04-12 10:26:472601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1806582017-04-05 16:36:492601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
1751552017-03-29 15:20:382601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
1697242017-03-22 14:04:322601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
1652242017-03-15 12:48:322601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1608012017-03-08 11:32:462601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1567492017-03-01 10:16:442601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1514152017-02-22 09:01:402601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1468782017-02-15 02:55:452601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1426352017-02-08 01:39:532601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1418752017-02-07 02:06:152601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1385592017-02-02 04:11:532601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1339862017-01-26 02:55:482601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1319342017-01-19 01:40:412601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1318692017-01-18 23:47:412601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1287782017-01-13 22:13:482601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1242402017-01-06 20:58:172601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1204572016-12-30 20:46:192601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1199372016-12-29 20:29:232601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1195192016-12-29 01:03:462601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1172702016-12-24 19:23:272601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1154962016-12-21 14:26:292601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1110602016-12-14 13:11:032601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1109462016-12-14 08:04:392601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport
1090552016-12-11 18:58:212601:204:d4xx::/407922 (COMCAST-7922)usa (United States)noblockedblockednoneReport

All results shown
Last Modified