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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
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
1920792017-04-18 13:09:54147.32.217.x/242852 (CESNET2)cze (Czech Republic)noblockedblocked/19Report
1919792017-04-18 10:48:07109.105.54.x/2412570 (ITSELF)cze (Czech Republic)yesrewrittenrewrittennoneReport
1917902017-04-18 07:01:01109.105.54.x/2412570 (ITSELF)cze (Czech Republic)yesrewrittenrewrittennoneReport
1913132017-04-17 19:06:34185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1912762017-04-17 18:18:0794.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
1912622017-04-17 17:59:10185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1910922017-04-17 14:53:11185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1908972017-04-17 11:08:1977.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1908492017-04-17 09:25:10194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1908492017-04-17 09:25:102a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
1900482017-04-16 10:38:3977.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1896152017-04-15 21:19:0977.48.159.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownunknownnoneReport
1896012017-04-15 20:35:5494.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
1886732017-04-14 18:21:5094.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
1886512017-04-14 17:59:5290.181.85.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1886512017-04-14 17:59:522a00:1028:96xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
1885162017-04-14 15:30:5589.103.143.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
1883072017-04-14 11:11:3489.176.87.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
1882432017-04-14 09:48:2089.177.133.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownblockednoneReport
1880552017-04-14 05:35:0389.102.240.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
1878852017-04-14 00:26:4494.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
1870172017-04-13 13:01:25193.179.2.x/245588 (GTSCE)cze (Czech Republic)yesblockedblockednoneReport
1869172017-04-13 11:10:3694.113.161.x/246830 (LibertyGlobal)cze (Czech Republic)yesunknownblockednoneReport
1859862017-04-12 11:22:2579.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
1859262017-04-12 09:47:5679.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
1842432017-04-10 06:28:17194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1842432017-04-10 06:28:172a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
1841312017-04-10 01:25:07185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1838932017-04-09 16:43:4283.208.252.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1836712017-04-09 11:31:40194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1836712017-04-09 11:31:402a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
1823802017-04-07 15:20:55109.105.54.x/2412570 (ITSELF)cze (Czech Republic)yesrewrittenrewrittennoneReport
1821112017-04-07 08:07:4984.242.120.x/246830 (LibertyGlobal)cze (Czech Republic)yesrewrittenrewrittennoneReport
1817992017-04-06 22:29:1294.112.144.x/246830 (LibertyGlobal)cze (Czech Republic)yesblockedblockednoneReport
1813352017-04-06 11:49:12109.105.54.x/2412570 (ITSELF)cze (Czech Republic)yesrewrittenrewrittennoneReport
1796732017-04-04 12:11:03194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1796732017-04-04 12:11:032a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
1766592017-03-31 09:23:58185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesunknownunknownnoneReport
1741372017-03-28 10:51:43194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1741372017-03-28 10:51:432a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
1712552017-03-24 19:37:49185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1688372017-03-21 06:13:57194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1688372017-03-21 06:13:572a00:1028:83xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
1665652017-03-17 12:22:56185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport
1661582017-03-16 19:25:5246.36.36.x/2451731 (GTT-AS)cze (Czech Republic)yesblockedblockednoneReport
1657472017-03-16 07:05:2246.47.186.x/2430764 (PODA-AS)cze (Czech Republic)yesblockedreceived/8Report
1651852017-03-15 11:47:4446.47.186.x/2430764 (PODA-AS)cze (Czech Republic)yesblockedreceived/17Report
1650542017-03-15 08:01:51194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1650302017-03-15 07:28:0246.47.186.x/2430764 (PODA-AS)cze (Czech Republic)yesblockedreceived/8Report
1649852017-03-15 06:09:1237.48.10.x/2413036 (TMOBILE-CZ)cze (Czech Republic)yesrewrittenrewrittennoneReport
1649702017-03-15 05:24:2479.127.242.x/249080 (GIN)cze (Czech Republic)yesrewrittenrewrittennoneReport
1649662017-03-15 05:15:2579.127.242.x/249080 (GIN)cze (Czech Republic)yesrewrittenrewrittennoneReport
1647612017-03-14 20:56:0179.127.242.x/249080 (GIN)cze (Czech Republic)yesrewrittenrewrittennoneReport
1647562017-03-14 20:41:1679.127.242.x/249080 (GIN)cze (Czech Republic)yesrewrittenrewrittennoneReport
1645342017-03-14 14:46:3037.48.8.x/2413036 (TMOBILE-CZ)cze (Czech Republic)yesrewrittenrewrittennoneReport
1644402017-03-14 10:57:2846.47.186.x/2430764 (PODA-AS)cze (Czech Republic)yesblockedreceived/8Report
1643902017-03-14 09:15:5746.47.186.x/2430764 (PODA-AS)cze (Czech Republic)yesblockedreceived/8Report
1637782017-03-13 11:38:2446.47.186.x/2430764 (PODA-AS)cze (Czech Republic)yesblockedreceived/8Report
1632712017-03-12 10:51:12178.17.8.x/2450825 (UVT)cze (Czech Republic)yesrewrittenrewrittennoneReport
1628722017-03-11 17:15:2179.127.242.x/249080 (GIN)cze (Czech Republic)yesrewrittenrewrittennoneReport
1626032017-03-11 05:59:05194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1621972017-03-10 14:24:49217.66.185.x/2415935 (HA-VEL-LOCAL-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
1621542017-03-10 13:09:3379.127.242.x/249080 (GIN)cze (Czech Republic)yesrewrittenrewrittennoneReport
1619872017-03-10 06:31:5279.127.242.x/249080 (GIN)cze (Czech Republic)yesrewrittenrewrittennoneReport
1615302017-03-09 14:41:53194.228.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesrewrittenrewrittennoneReport
1610772017-03-08 21:05:3146.36.36.x/2451731 (GTT-AS)cze (Czech Republic)yesblockedblockednoneReport
1609372017-03-08 16:53:14185.41.141.x/24174 (COGENT-174)cze (Czech Republic)yesblockedblockednoneReport

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