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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
20717072025-12-01 23:25:33172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20599272025-11-10 23:44:16172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20568092025-10-31 19:00:03172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20513902025-10-22 13:19:08172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20489242025-10-18 06:24:54172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20245032025-09-05 01:58:58172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20242522025-09-04 15:08:55172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20215252025-08-31 00:50:11172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20206512025-08-29 06:39:55172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
20198782025-08-27 20:51:32172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesblockedblockednoneReport
20198732025-08-27 20:46:57172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesblockedblockednoneReport
20194542025-08-27 08:20:12172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
17916132024-07-05 00:24:59172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
17079932024-01-25 01:42:53172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesunknownunknownnoneReport
17077512024-01-24 16:01:48172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesunknownunknownnoneReport
17074342024-01-24 01:41:33172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesunknownunknownnoneReport
16353712023-09-07 18:40:15172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport
16167072023-08-03 18:24:17172.58.240.x/2421928 (T-MOBILE-AS21928)usa (United States)yesrewrittenrewrittennoneReport

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