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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
20725172025-12-03 10:52:012601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20434792025-10-08 19:17:012601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20397642025-10-01 17:44:442601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20355892025-09-24 16:12:342601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20316402025-09-17 14:40:582601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20275602025-09-10 13:09:142601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20234912025-09-03 11:37:232601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20194992025-08-27 10:05:242601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20157902025-08-20 08:30:512601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20120492025-08-13 06:56:222601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20047232025-07-31 09:32:182601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
20007362025-07-24 08:00:132601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19967982025-07-17 06:28:212601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19928012025-07-10 04:56:182601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19888992025-07-03 03:24:052601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
19848182025-06-26 01:52:182601:1c0:45xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report

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