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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
21708452026-05-30 10:10:3489.111.119.x/2439791 (CEZNET-AS)cze (Czech Republic)yesblockedblockednoneReport
21708172026-05-30 08:33:2891.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21708032026-05-30 07:52:1491.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21697672026-05-28 15:35:39109.81.22.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21697612026-05-28 15:21:0491.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21695202026-05-28 08:17:13212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21686372026-05-26 19:57:10109.81.17.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21679512026-05-25 18:10:0493.90.160.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
21678562026-05-25 15:22:1993.90.160.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
21672282026-05-24 12:04:21194.12.33.x/2449985 (IP4ISP)cze (Czech Republic)yesrewrittenrewrittennoneReport
21662322026-05-22 17:08:5891.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21652642026-05-21 07:09:50212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21647612026-05-20 13:43:13188.120.212.x/2449985 (IP4ISP)cze (Czech Republic)yesrewrittenreceivednoneReport
21635102026-05-18 13:57:19109.81.90.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21635002026-05-18 13:45:29109.81.90.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21633362026-05-18 07:49:5991.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21633082026-05-18 06:30:0691.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21620752026-05-15 16:01:4691.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21620712026-05-15 15:47:5391.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21611552026-05-14 06:02:22212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21600732026-05-12 14:45:31188.120.212.x/2449985 (IP4ISP)cze (Czech Republic)yesrewrittenreceivednoneReport
21600012026-05-12 13:16:11109.81.82.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21593982026-05-11 15:42:33109.81.90.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21593982026-05-11 15:42:332a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
21581152026-05-08 21:19:25188.120.212.x/2449985 (IP4ISP)cze (Czech Republic)yesrewrittenreceivednoneReport
21577382026-05-08 09:22:33109.81.28.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21577312026-05-08 09:10:50109.81.28.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21570482026-05-07 04:54:57212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21560562026-05-05 14:38:17109.81.94.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21544732026-05-02 13:57:5691.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21543702026-05-02 05:22:5391.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21543652026-05-02 05:15:2991.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21542682026-05-01 21:13:22109.81.88.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21542512026-05-01 20:12:11188.120.212.x/2449985 (IP4ISP)cze (Czech Republic)yesrewrittenreceivednoneReport
21540892026-05-01 12:21:2579.127.134.x/24212238 (CDNEXT)cze (Czech Republic)yesunknownunknownnoneReport
21540892026-05-01 12:21:252a02:6ea0:c9xx::/4060068 (CDN77)cze (Czech Republic)yesunknownunknownnoneReport
21537892026-04-30 19:11:08109.81.17.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21535062026-04-30 09:16:0588.102.242.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesblockedblockednoneReport
21535062026-04-30 09:16:052a00:1028:91xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
21535032026-04-30 09:12:3488.102.242.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesblockedblockednoneReport
21535032026-04-30 09:12:342a00:1028:91xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
21534962026-04-30 08:53:3388.102.242.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesblockedblockednoneReport
21534962026-04-30 08:53:332a00:1028:91xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
21534932026-04-30 08:50:0488.102.242.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesblockedblockednoneReport
21534932026-04-30 08:50:042a00:1028:91xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
21519722026-04-27 16:05:05109.81.28.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21519622026-04-27 15:53:21109.81.28.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21506482026-04-24 15:03:41109.81.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21499442026-04-23 10:40:24109.81.82.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21499112026-04-23 09:06:1191.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21496822026-04-22 19:31:1491.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21495192026-04-22 13:55:18178.17.13.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
21493362026-04-22 07:29:06212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21482972026-04-20 10:47:12147.229.206.x/24197451 (VUTBR-AS)cze (Czech Republic)noblockedblocked/14Report
21457062026-04-15 06:21:39212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21452352026-04-14 11:23:2379.127.134.x/24212238 (CDNEXT)cze (Czech Republic)yesunknownunknownnoneReport
21447822026-04-13 14:59:08109.81.90.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21447752026-04-13 14:47:27109.81.90.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21446942026-04-13 12:06:08147.251.13.x/242852 (CESNET2)cze (Czech Republic)yesblockedblockednoneReport
21435282026-04-10 16:46:3791.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21435222026-04-10 16:34:3691.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21421002026-04-08 05:14:12212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21406382026-04-05 15:21:30109.81.18.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21406382026-04-05 15:21:302a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
21386402026-04-01 11:45:4462.209.230.x/2413036 (TMOBILE-CZ)cze (Czech Republic)yesrewrittenreceivednoneReport
21384722026-04-01 04:06:49212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21380922026-03-31 14:09:22109.81.89.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21378082026-03-31 04:49:0437.188.209.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21378082026-03-31 04:49:042a00:102a:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21373962026-03-30 13:12:1037.188.149.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21373962026-03-30 13:12:102a00:102a:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21373362026-03-30 11:44:0637.188.149.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21372352026-03-30 07:10:2791.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21369622026-03-29 16:14:3791.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21365972026-03-28 21:26:5291.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21361112026-03-27 20:15:03185.87.142.x/24204666 (czjiritlapak)cze (Czech Republic)yesrewrittenrewrittennoneReport
21360902026-03-27 19:29:48185.87.142.x/24204666 (czjiritlapak)cze (Czech Republic)yesrewrittenrewrittennoneReport
21358282026-03-27 11:30:2537.188.210.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21358282026-03-27 11:30:252a00:102a:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21354632026-03-26 18:35:46109.81.85.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21354632026-03-26 18:35:462a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
21352662026-03-26 11:19:1837.188.222.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21352532026-03-26 10:52:3337.188.222.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21348972026-03-25 17:23:10109.81.23.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21347012026-03-25 11:47:2637.188.211.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21347012026-03-25 11:47:262a00:102a:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21339632026-03-24 05:39:1837.188.204.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21339632026-03-24 05:39:182a00:102a:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21330992026-03-22 18:26:1137.188.170.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21330992026-03-22 18:26:112a00:102a:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21330452026-03-22 14:55:4937.188.186.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21330452026-03-22 14:55:492a00:102a:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21330402026-03-22 14:36:5691.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21327512026-03-21 22:55:3791.236.40.x/2457904 (ASVEVYNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
21316482026-03-19 18:06:1237.188.166.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21316482026-03-19 18:06:122a00:102a:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21314162026-03-19 11:05:2437.188.209.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21314162026-03-19 11:05:242a00:102a:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21314082026-03-19 10:54:1437.188.209.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21313812026-03-19 08:51:21212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21308302026-03-18 06:24:5137.188.140.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21308302026-03-18 06:24:512a00:102a:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21308142026-03-18 05:51:2337.188.140.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21302302026-03-17 05:50:3337.188.237.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21302302026-03-17 05:50:332a00:102a:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21298902026-03-16 16:10:12109.81.26.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21293012026-03-15 13:34:55109.81.21.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21293012026-03-15 13:34:552a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
21291082026-03-15 02:45:4379.127.160.x/24212238 (CDNEXT)cze (Czech Republic)yesrewrittenrewrittennoneReport
21288082026-03-14 10:26:39109.81.17.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21283762026-03-13 13:07:2437.188.147.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21283562026-03-13 12:44:3437.188.147.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21282252026-03-13 06:29:4337.188.147.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21282202026-03-13 06:07:5537.188.147.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21277302026-03-12 11:21:4137.188.132.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21277302026-03-12 11:21:412a00:102a:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21277242026-03-12 11:04:3337.188.132.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21276652026-03-12 07:43:55212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21270332026-03-11 05:54:4437.188.236.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21270332026-03-11 05:54:442a00:102a:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21266402026-03-10 13:01:2837.188.176.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21266402026-03-10 13:01:282a00:102a:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21264832026-03-10 06:10:34212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport

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