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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
3958412018-01-22 07:28:4679.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3958412018-01-22 07:28:462a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3896632018-01-12 07:13:2979.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3896632018-01-12 07:13:292a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3893092018-01-11 17:54:5679.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3893092018-01-11 17:54:562a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3882892018-01-10 09:32:5679.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3882892018-01-10 09:32:562a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3838742018-01-03 08:14:4679.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3838742018-01-03 08:14:462a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3838592018-01-03 07:38:3879.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3838592018-01-03 07:38:382a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3820012017-12-30 17:27:0379.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3820012017-12-30 17:27:032a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3783882017-12-23 16:40:0679.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3783882017-12-23 16:40:062a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3721452017-12-13 16:34:2779.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3721452017-12-13 16:34:272a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3639342017-12-01 07:13:0779.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3639342017-12-01 07:13:072a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3592862017-11-23 17:34:2779.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3592862017-11-23 17:34:272a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3587532017-11-22 18:50:1379.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblockednoneReport
3587532017-11-22 18:50:132a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceivednoneReport
3572392017-11-20 08:41:0479.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3572392017-11-20 08:41:042a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3533122017-11-14 08:25:3579.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblockednoneReport
3532842017-11-14 07:38:4379.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3532702017-11-14 07:13:4379.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3520812017-11-12 08:46:2379.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3520812017-11-12 08:46:232a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3497472017-11-08 06:49:3779.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3497472017-11-08 06:49:372a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3467342017-11-03 08:25:3879.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3461102017-11-02 10:09:1479.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3461102017-11-02 10:09:142a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3419912017-10-26 15:58:1279.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3419912017-10-26 15:58:122a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3381982017-10-20 12:46:2579.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3375992017-10-19 14:51:1279.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3375992017-10-19 14:51:122a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3366492017-10-18 10:13:1279.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3366492017-10-18 10:13:122a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3343152017-10-14 10:46:1179.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3343152017-10-14 10:46:112a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3329432017-10-12 05:42:5079.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3329432017-10-12 05:42:502a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3303952017-10-08 12:02:2679.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3303952017-10-08 12:02:262a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3274942017-10-03 10:58:5379.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3274942017-10-03 10:58:532a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3235552017-09-26 05:35:3879.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3235552017-09-26 05:35:382a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3223922017-09-24 09:23:0079.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3223922017-09-24 09:23:002a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3210462017-09-22 05:40:2579.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3210462017-09-22 05:40:252a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3192262017-09-19 10:28:0679.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3192262017-09-19 10:28:062a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3162752017-09-14 17:06:1579.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3162752017-09-14 17:06:152a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3115562017-09-07 14:16:3079.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3115562017-09-07 14:16:302a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3072252017-08-31 13:09:4079.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3072252017-08-31 13:09:402a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3070612017-08-31 07:45:3979.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3070612017-08-31 07:45:392a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
3029432017-08-24 16:34:2779.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
3029432017-08-24 16:34:272a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2990332017-08-18 06:19:1779.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2990332017-08-18 06:19:172a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2942642017-08-10 16:08:5879.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2942642017-08-10 16:08:582a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2871892017-08-01 09:27:5579.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2871892017-08-01 09:27:552a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
2816182017-07-25 08:21:1479.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesrewrittenblocked/21Report
2816182017-07-25 08:21:142a02:970:ffxx::/4044002 (SYS-DATACOM)cze (Czech Republic)noreceivedreceived/16Report
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
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
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
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
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
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
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
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
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
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
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
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
2036372017-04-29 08:33:1279.98.78.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
1931672017-04-19 12:29:3979.98.72.x/2444002 (SYS-DATACOM)cze (Czech Republic)yesblockedblockednoneReport
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

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