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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
19207662025-03-03 17:39:072408:8421:54xx::/404837 (CHINA169-Backbone)chn (China)noblockedblocked/64Report
19182852025-02-27 08:30:552408:8421:54xx::/404837 (CHINA169-Backbone)chn (China)noblockedblocked/64Report
19179592025-02-26 19:17:102408:8421:54xx::/404837 (CHINA169-Backbone)chn (China)noblockedblocked/64Report
19178832025-02-26 17:36:222408:8421:54xx::/404837 (CHINA169-Backbone)chn (China)nounknownunknownnoneReport
19178372025-02-26 16:21:552408:8421:54xx::/404837 (CHINA169-Backbone)chn (China)noblockedblocked/64Report
19178102025-02-26 15:45:052408:8421:54xx::/404837 (CHINA169-Backbone)chn (China)noblockedblocked/64Report
19137582025-02-19 19:18:052408:8421:54xx::/404837 (CHINA169-Backbone)chn (China)noblockedblocked/64Report
19137552025-02-19 19:12:242408:8421:54xx::/404837 (CHINA169-Backbone)chn (China)noblockedblocked/64Report
19099462025-02-12 20:21:402408:8421:54xx::/404837 (CHINA169-Backbone)chn (China)noblockedblocked/64Report

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