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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
2391032017-06-04 12:54:43194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2391032017-06-04 12:54:432a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2366882017-06-01 15:47:10176.74.218.x/2451248 (HOST-TELECOM)cze (Czech Republic)yesblockedblockednoneReport
2346552017-05-30 13:09:35185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2345632017-05-30 10:44:06185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2344872017-05-30 08:37:5289.103.145.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
2344762017-05-30 08:21:10185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2344172017-05-30 06:55:16194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2344172017-05-30 06:55:162a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2337332017-05-29 13:03:0088.100.14.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2337332017-05-29 13:03:002a00:1028:91xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2336112017-05-29 09:38:2289.102.174.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2335002017-05-29 07:09:14185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2312892017-05-26 14:28:52194.228.13.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2312892017-05-26 14:28:522a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2312252017-05-26 13:09:4894.113.214.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2311862017-05-26 12:00:0984.242.84.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
2310932017-05-26 09:16:5789.176.87.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
2310522017-05-26 08:28:56185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2309572017-05-26 05:33:2679.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
2309572017-05-26 05:33:262a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2302742017-05-25 12:26:01185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2302212017-05-25 11:09:2686.49.107.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2295242017-05-24 16:32:3577.243.183.x/249009 (M247)cze (Czech Republic)yesunknownblockednoneReport
2294932017-05-24 16:09:5777.243.183.x/249009 (M247)cze (Czech Republic)yesblockedblockednoneReport
2294632017-05-24 15:17:3577.243.183.x/249009 (M247)cze (Czech Republic)yesblockedblockednoneReport
2290812017-05-24 06:37:02185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2287652017-05-23 21:08:4194.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2282722017-05-23 10:01:5586.49.146.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2280782017-05-23 05:38:37194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2280782017-05-23 05:38:372a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2275092017-05-22 15:15:4778.41.22.x/2443413 (ASNEW)cze (Czech Republic)yesunknownunknownnoneReport
2273032017-05-22 11:10:51185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2238952017-05-18 14:32:0779.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
2238952017-05-18 14:32:072a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2238072017-05-18 12:50:13109.105.54.x/2412570 (ITSELF)cze (Czech Republic)yesrewrittenrewrittennoneReport
2237812017-05-18 12:19:10185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2236862017-05-18 09:56:0294.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2229842017-05-17 16:37:4579.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
2229842017-05-17 16:37:452a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2229192017-05-17 15:29:3494.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2228032017-05-17 13:40:56147.229.207.x/24197451 (VUTBR-AS)cze (Czech Republic)noblockedblocked/14Report
2228032017-05-17 13:40:562001:67c:12xx::/40197451 (VUTBR-AS)cze (Czech Republic)noblockedblocked/48Report
2227882017-05-17 13:28:48147.229.206.x/24197451 (VUTBR-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
2219402017-05-16 18:37:4794.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2212732017-05-16 04:42:09194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2209162017-05-15 18:58:51194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2206562017-05-15 14:18:0486.49.3.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2205052017-05-15 11:28:16212.27.195.x/246706 (VOL-AS)cze (Czech Republic)yesunknownunknownnoneReport
2198582017-05-14 16:42:56194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2181812017-05-12 20:34:2777.243.183.x/249009 (M247)cze (Czech Republic)yesblockedblockednoneReport
2178922017-05-12 15:25:0489.102.171.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2167832017-05-11 13:52:2889.102.174.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2166392017-05-11 11:05:24185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2159492017-05-10 20:35:2594.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2152902017-05-10 08:01:5479.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
2152902017-05-10 08:01:542a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2137582017-05-08 21:43:29194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2137582017-05-08 21:43:292a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2122362017-05-07 09:06:22185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2105432017-05-05 13:54:3689.102.174.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2103972017-05-05 10:09:0285.71.42.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2103972017-05-05 10:09:022a00:1028:8dxx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2085312017-05-03 18:53:3994.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
2084012017-05-03 17:09:1780.79.16.x/2424971 (MASTER-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
2081722017-05-03 13:16:39217.16.185.x/2443541 (VSHOSTING)cze (Czech Republic)yesrewrittenrewrittennoneReport
2062592017-05-01 20:27:35194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2062592017-05-01 20:27:352a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2057322017-05-01 11:35:4779.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
2057322017-05-01 11:35:472a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2056302017-05-01 09:21:45194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
2056302017-05-01 09:21:452a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
2049522017-04-30 16:45:0580.79.16.x/2424971 (MASTER-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
2039612017-04-29 16:03:5677.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2039402017-04-29 15:32:0177.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2039252017-04-29 15:10:4177.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2039032017-04-29 14:42:4977.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2037672017-04-29 11:55:3778.41.22.x/2443413 (ASNEW)cze (Czech Republic)yesunknownunknownnoneReport
2036372017-04-29 08:33:1279.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
2031192017-04-28 19:28:1577.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2028182017-04-28 15:01:3592.62.225.x/2444489 (Starnet)cze (Czech Republic)yesrewrittenrewrittennoneReport
2026102017-04-28 12:26:4377.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2024172017-04-28 08:55:30185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2023552017-04-28 08:02:00185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2023302017-04-28 07:40:50185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2015652017-04-27 17:06:2177.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2013942017-04-27 14:27:4077.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2007732017-04-26 21:34:43185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
2002972017-04-26 12:27:5977.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
2001422017-04-26 08:21:46213.29.194.x/245588 (GTSCE)cze (Czech Republic)yesrewrittenrewrittennoneReport
1994962017-04-25 16:50:5977.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1992972017-04-25 14:07:08185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1992832017-04-25 13:44:5577.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1992312017-04-25 12:52:52109.105.54.x/2412570 (ITSELF)cze (Czech Republic)yesrewrittenrewrittennoneReport
1990532017-04-25 09:06:4077.243.183.x/249009 (M247)cze (Czech Republic)yesblockedblockednoneReport
1985182017-04-24 19:24:4794.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
1983972017-04-24 17:09:3277.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1981812017-04-24 13:43:39194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1981812017-04-24 13:43:392a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
1981082017-04-24 12:32:0077.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1974472017-04-23 17:53:3577.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1972852017-04-23 14:09:0577.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1971862017-04-23 12:09:4680.92.244.x/24197029 (LAM-AS)cze (Czech Republic)yesreceivedreceived/8Report
1971442017-04-23 10:56:0984.246.161.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
1970862017-04-23 09:16:0877.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1965782017-04-22 19:53:22185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1962512017-04-22 11:40:0277.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1952042017-04-21 09:36:11185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1951732017-04-21 08:53:03185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1944142017-04-20 16:44:0277.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1944072017-04-20 16:34:2584.42.249.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
1942302017-04-20 13:59:1377.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1932292017-04-19 13:47:0277.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1931672017-04-19 12:29:3979.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
1929722017-04-19 08:13:34185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1921392017-04-18 13:55:5377.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport

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