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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
20631422025-11-16 23:05:58207.213.21.x/247018 (ATT-INTERNET4)usa (United States)yesblockedblockednoneReport
20307382025-09-16 05:01:22207.213.21.x/247018 (ATT-INTERNET4)usa (United States)yesblockedblockednoneReport
20307292025-09-16 04:45:09207.213.21.x/247018 (ATT-INTERNET4)usa (United States)yesblockedblockednoneReport
20306562025-09-15 23:07:11207.213.21.x/247018 (ATT-INTERNET4)usa (United States)yesblockedblockednoneReport
19946612025-07-13 20:03:41207.213.21.x/247018 (ATT-INTERNET4)usa (United States)yesblockedblockednoneReport
19946052025-07-13 17:21:53207.213.21.x/247018 (ATT-INTERNET4)usa (United States)yesblockedblockednoneReport
19863802025-06-28 21:22:59207.213.21.x/247018 (ATT-INTERNET4)usa (United States)yesblockedblockednoneReport
19827352025-06-22 17:40:44207.213.21.x/247018 (ATT-INTERNET4)usa (United States)yesblockedblockednoneReport
19541072025-05-03 04:43:59207.213.21.x/247018 (ATT-INTERNET4)usa (United States)yesblockedblockednoneReport

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