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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
20742512025-12-06 15:04:0283.37.19.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
19460672025-04-17 20:02:0283.37.19.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
19426042025-04-10 20:02:0283.37.19.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
19402372025-04-06 14:42:0183.37.19.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
19152752025-02-22 13:52:0183.37.19.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
18823862024-12-22 15:02:0283.37.19.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
18017402024-07-23 18:32:0183.37.19.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
16842352023-12-08 14:37:0283.37.19.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport

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