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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
20539952025-10-27 05:09:48172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20528972025-10-24 20:32:29172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20492862025-10-19 00:08:30172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20481552025-10-16 23:23:25172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20480052025-10-16 17:00:42172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20467922025-10-14 18:49:01172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20449102025-10-11 09:32:57172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20448152025-10-11 02:37:49172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20447742025-10-11 00:36:48172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20397092025-10-01 15:29:07172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20368032025-09-26 16:08:07172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20333752025-09-20 15:26:56172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
19671592025-05-25 00:07:34172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
18265252024-09-10 17:26:13172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
17991342024-07-18 16:00:58172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
17914422024-07-04 18:32:48172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
17896972024-07-01 19:57:10172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
17896832024-07-01 19:34:35172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
2691372017-07-10 08:52:43172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesblockedblockednoneReport
1755162017-03-30 00:29:15172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
1755142017-03-30 00:22:18172.56.17.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport

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