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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
2736732017-07-15 10:01:3678.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2736552017-07-15 09:25:5094.112.177.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
2734322017-07-15 00:51:4762.168.35.x/245588 (GTSCE)cze (Czech Republic)yesunknownunknownnoneReport
2733502017-07-14 22:15:59185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2733182017-07-14 21:34:0378.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2732972017-07-14 21:00:2778.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2732472017-07-14 19:51:4162.168.35.x/245588 (GTSCE)cze (Czech Republic)yesunknownunknownnoneReport
2731832017-07-14 17:49:3994.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2729842017-07-14 13:23:2562.168.35.x/245588 (GTSCE)cze (Czech Republic)yesunknownunknownnoneReport
2727862017-07-14 07:46:3779.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2727862017-07-14 07:46:372a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2724782017-07-13 21:38:0582.202.92.x/2425512 (CDT-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
2720242017-07-13 11:56:1986.49.107.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2720132017-07-13 11:41:4086.49.107.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2720052017-07-13 11:20:0686.49.107.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2719952017-07-13 11:14:4594.199.46.x/2448298 (GOVCZ)cze (Czech Republic)yesunknownunknownnoneReport
2715242017-07-12 21:12:1378.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2715102017-07-12 20:52:2778.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2714552017-07-12 19:34:4778.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2714282017-07-12 18:34:2094.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2712732017-07-12 15:55:1777.93.192.x/2424971 (MASTER-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
2711072017-07-12 12:44:1594.199.46.x/2448298 (GOVCZ)cze (Czech Republic)yesunknownunknownnoneReport
2709392017-07-12 08:11:4194.199.46.x/2448298 (GOVCZ)cze (Czech Republic)yesunknownunknownnoneReport
2708552017-07-12 06:12:3594.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2700262017-07-11 10:50:41185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2699212017-07-11 08:21:2637.188.182.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesblockedblockednoneReport
2696512017-07-10 22:10:4762.168.35.x/245588 (GTSCE)cze (Czech Republic)yesunknownunknownnoneReport
2694902017-07-10 17:36:57194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
2694902017-07-10 17:36:572a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2691252017-07-10 08:35:3594.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2670052017-07-07 06:38:5879.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2670052017-07-07 06:38:582a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2658752017-07-05 20:53:1578.108.102.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
2658352017-07-05 20:05:4694.112.177.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
2656402017-07-05 15:42:11194.228.59.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2653752017-07-05 10:01:28194.213.202.x/245588 (GTSCE)cze (Czech Republic)yesblockedblockednoneReport
2647812017-07-04 15:43:1981.0.223.x/2415685 (CASABLANCA-AS)cze (Czech Republic)yesunknownunknownnoneReport
2644322017-07-04 06:41:09185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2640952017-07-03 19:36:3478.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2640292017-07-03 17:59:0978.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2638292017-07-03 13:24:06194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2638292017-07-03 13:24:062a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
2636382017-07-03 08:29:5689.176.87.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
2636002017-07-03 07:28:5994.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2629032017-07-02 09:42:38194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2629032017-07-02 09:42:382a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
2625312017-07-01 21:33:4478.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2625142017-07-01 21:07:3378.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2622422017-07-01 12:15:1178.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2621942017-07-01 10:38:4478.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2616592017-06-30 18:30:54217.75.209.x/2447232 (ISPAlliance)cze (Czech Republic)yesrewrittenrewrittennoneReport
2614362017-06-30 14:01:5778.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2605522017-06-29 14:26:0689.177.54.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
2605522017-06-29 14:26:062a03:6927:ffxx::/4050833 (FIBERTEL-AS)cze (Czech Republic)noreceivedreceived/72Report
2604892017-06-29 13:19:4279.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2604892017-06-29 13:19:422a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2596582017-06-28 15:59:5079.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2596582017-06-28 15:59:502a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2594002017-06-28 10:35:5186.49.107.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2591202017-06-28 01:13:42185.89.251.x/2421321 (NETUITY-AS)cze (Czech Republic)yesunknownunknownnoneReport
2590362017-06-27 22:50:4694.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2577122017-06-26 11:32:3888.101.100.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2571052017-06-25 15:37:312a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2565802017-06-24 22:01:45194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2565802017-06-24 22:01:452a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2564432017-06-24 16:55:11194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2564432017-06-24 16:55:112a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
2562102017-06-24 10:37:5883.143.240.x/249009 (M247)cze (Czech Republic)yesblockedblockednoneReport
2560962017-06-24 05:30:2777.93.192.x/2424971 (MASTER-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
2560892017-06-24 05:17:5377.93.192.x/2424971 (MASTER-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
2554242017-06-23 08:38:10194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2554242017-06-23 08:38:102a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblockednoneReport
2530472017-06-20 14:48:01185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2530072017-06-20 13:50:0679.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblockednoneReport
2530072017-06-20 13:50:062a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceivednoneReport
2528902017-06-20 10:56:2689.102.174.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2527792017-06-20 08:33:0589.176.87.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
2512412017-06-18 14:36:0994.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2507742017-06-17 23:51:5694.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2493062017-06-16 05:12:54194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2493062017-06-16 05:12:542a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2487992017-06-15 15:58:41194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2487992017-06-15 15:58:412a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2485162017-06-15 10:33:4037.188.137.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesblockedblockednoneReport
2484372017-06-15 08:43:43217.75.209.x/2447232 (ISPAlliance)cze (Czech Republic)yesrewrittenrewrittennoneReport
2478562017-06-14 17:57:0884.42.249.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2475632017-06-14 12:05:3294.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesrewrittenrewrittennoneReport
2475362017-06-14 11:22:2994.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2475182017-06-14 10:56:0194.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2474052017-06-14 08:33:5894.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2473542017-06-14 07:34:2194.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2467952017-06-13 16:29:4737.48.33.x/2413036 (TMOBILE-CZ)cze (Czech Republic)yesrewrittenrewrittennoneReport
2465562017-06-13 11:04:34185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2464962017-06-13 09:22:4489.102.174.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2463892017-06-13 06:19:40194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2463892017-06-13 06:19:402a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2460282017-06-12 18:35:0578.45.198.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2457512017-06-12 13:35:3894.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2456062017-06-12 10:04:4494.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2454622017-06-12 06:32:38185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2451802017-06-11 18:58:2878.41.22.x/2443413 (ASNEW)cze (Czech Republic)yesunknownunknownnoneReport
2450462017-06-11 15:13:48195.181.219.x/2424806 (INTERNET-CZ)cze (Czech Republic)noblockedblocked/24Report
2450362017-06-11 15:00:48195.181.219.x/2424806 (INTERNET-CZ)cze (Czech Republic)noblockedblocked/24Report
2449332017-06-11 11:09:5179.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2449332017-06-11 11:09:512a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2448692017-06-11 08:51:21185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2445882017-06-10 22:45:1594.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2445552017-06-10 21:29:2694.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2444272017-06-10 16:57:2279.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2444272017-06-10 16:57:222a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2437122017-06-09 16:31:0478.108.102.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
2435502017-06-09 12:54:5894.199.47.x/2448298 (GOVCZ)cze (Czech Republic)yesblockedblocked/30Report
2416272017-06-07 10:39:30185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2405472017-06-06 05:02:28194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2405472017-06-06 05:02:282a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2403222017-06-05 22:26:24194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2403222017-06-05 22:26:242a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2396592017-06-05 07:17:2979.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
2396592017-06-05 07:17:292a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2396342017-06-05 06:55:2279.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport

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