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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
21386072026-04-01 10:17:0483.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21346632026-03-25 10:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21346462026-03-25 09:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21346222026-03-25 08:17:0483.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21346062026-03-25 07:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21345852026-03-25 06:17:0483.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21345642026-03-25 05:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21345462026-03-25 04:17:0483.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21345252026-03-25 03:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21345112026-03-25 02:17:0483.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21344892026-03-25 01:17:0483.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21344732026-03-25 00:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21344612026-03-24 23:17:0483.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21344472026-03-24 22:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21344262026-03-24 21:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21344022026-03-24 20:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21343612026-03-24 19:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21343192026-03-24 18:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21342872026-03-24 17:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21342632026-03-24 16:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21342262026-03-24 15:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21341962026-03-24 14:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21341512026-03-24 13:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21341162026-03-24 12:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21340792026-03-24 11:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21340592026-03-24 10:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21340332026-03-24 09:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21340242026-03-24 08:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21339962026-03-24 07:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21339792026-03-24 06:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21339552026-03-24 05:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21339352026-03-24 04:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21339202026-03-24 03:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21339032026-03-24 02:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21338852026-03-24 01:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21338712026-03-24 00:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21338572026-03-23 23:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21338442026-03-23 22:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21338212026-03-23 21:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21337942026-03-23 20:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21337662026-03-23 19:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21337282026-03-23 18:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21336922026-03-23 17:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21336562026-03-23 16:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21336212026-03-23 15:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21335752026-03-23 14:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21335172026-03-23 13:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21334812026-03-23 12:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21334412026-03-23 11:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21334182026-03-23 10:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21334052026-03-23 09:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21333892026-03-23 08:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21333622026-03-23 07:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21333352026-03-23 06:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21333132026-03-23 05:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21332832026-03-23 04:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21332602026-03-23 03:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21332442026-03-23 02:17:0383.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21332202026-03-23 01:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21331992026-03-23 00:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21331862026-03-22 23:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21331682026-03-22 22:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21331482026-03-22 21:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21331292026-03-22 20:17:0183.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21331152026-03-22 19:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21330962026-03-22 18:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21330772026-03-22 17:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21293622026-03-15 17:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21255732026-03-08 17:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21217512026-03-01 17:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
21178972026-02-22 17:17:0283.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
18897022025-01-07 02:37:0183.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
16736362023-11-18 21:42:0183.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport
16700302023-11-11 21:42:0183.37.18.x/243352 (Telefonica_de_Espana)esp (Spain)norewrittenrewrittennoneReport

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