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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
22490602026-10-12 12:00:322402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedblocked/64Report
21522742026-04-28 05:16:222402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedblocked/64Report
21522162026-04-28 02:20:452402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedblocked/64Report
21433252026-04-10 09:37:412402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedreceived/16Report
21121282026-02-12 15:23:022402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedblocked/64Report
21079562026-02-05 15:23:022402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedblocked/64Report
21039202026-01-29 15:23:032402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedblocked/64Report
20999312026-01-22 15:23:052402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedblocked/64Report
20958142026-01-15 15:23:022402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedblocked/64Report
20919882026-01-08 15:23:102402:800:63xx::/407552 (VIETEL-AS-AP)vnm (Vietnam)noblockedblocked/64Report

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