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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
11912642021-08-04 16:31:132600:100d:b1xx::/406167 (CELLCO-PART)usa (United States)noblockedblocked/64Report
11896532021-08-02 01:21:542600:100d:b1xx::/406167 (CELLCO-PART)usa (United States)noblockedblocked/64Report
5646282018-11-02 20:33:592600:100d:b1xx::/4022394 (CELLCO)usa (United States)nounknownunknownnoneReport
5645722018-11-02 18:38:272600:100d:b1xx::/4022394 (CELLCO)usa (United States)nounknownunknownnoneReport
5645282018-11-02 17:13:342600:100d:b1xx::/4022394 (CELLCO)usa (United States)nounknownunknownnoneReport
5644402018-11-02 14:19:402600:100d:b1xx::/4022394 (CELLCO)usa (United States)nounknownunknownnoneReport
5341102018-09-12 00:50:002600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
5071992018-07-24 18:13:012600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
5071172018-07-24 14:55:002600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
5065432018-07-23 16:02:112600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
4519632018-04-24 11:30:302600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
4512682018-04-23 11:46:182600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
3209832017-09-22 02:41:482600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
3012412017-08-22 04:27:142600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblockednoneReport
2830082017-07-26 23:54:172600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2770202017-07-19 13:00:392600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2758072017-07-18 04:49:062600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2732992017-07-14 21:02:552600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2697392017-07-11 01:15:312600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2682252017-07-09 00:04:462600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2669292017-07-07 03:52:022600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2492722017-06-16 04:08:412600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2481372017-06-15 01:12:192600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2474722017-06-14 10:03:442600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2465702017-06-13 11:27:072600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2439782017-06-10 02:23:522600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2323692017-05-27 20:50:412600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2309092017-05-26 04:14:332600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblockednoneReport
2192872017-05-14 03:34:392600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2182082017-05-12 21:32:302600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblockednoneReport
2101072017-05-05 04:00:242600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
2085822017-05-03 19:55:592600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
1878242017-04-13 22:53:082600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report
1764542017-03-31 02:25:032600:100d:b1xx::/4022394 (CELLCO)usa (United States)noblockedblocked/64Report

All results shown
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