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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
3304602017-10-08 14:53:302601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3255392017-09-29 06:15:232601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3210382017-09-22 05:08:482601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3166442017-09-15 04:01:522601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3119272017-09-08 02:55:062601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3075962017-09-01 01:45:572601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3047892017-08-27 17:38:172601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
3000962017-08-20 04:14:012601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2998922017-08-19 16:51:322601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2955892017-08-12 13:53:152601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2903342017-08-05 11:42:002601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2850392017-07-29 10:03:572601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2792512017-07-22 02:49:192601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2734262017-07-15 00:40:582601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2676332017-07-07 23:34:192601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2616782017-06-30 18:56:192601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2557702017-06-23 17:47:022601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2497532017-06-16 16:41:102601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2436682017-06-09 15:28:552601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2377642017-06-02 18:35:162601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2314302017-05-26 17:28:462601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2249532017-05-19 16:19:462601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2178752017-05-12 15:12:002601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2105482017-05-05 14:03:252601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
2018942017-04-27 22:54:232601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report
1947092017-04-20 21:47:572601:19a:40xx::/407922 (COMCAST-7922)usa (United States)noblockedblocked/64Report

All results shown
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