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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
21109872026-02-10 20:13:54212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
21109112026-02-10 18:20:20109.81.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21108992026-02-10 17:58:38109.81.20.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21107572026-02-10 12:48:3137.188.163.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21105632026-02-10 06:36:0937.188.163.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21105632026-02-10 06:36:092a00:102a:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21105542026-02-10 06:09:1937.188.232.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21098662026-02-09 09:53:18109.81.94.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21096522026-02-08 23:34:31109.81.92.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21095522026-02-08 18:03:26212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21089352026-02-07 12:24:17109.81.18.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21086432026-02-06 20:38:2837.188.132.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21084362026-02-06 13:06:06109.81.89.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21084302026-02-06 12:54:24109.81.89.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21080512026-02-05 18:32:08109.81.89.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21080342026-02-05 17:58:47109.81.89.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21071662026-02-04 14:25:11109.81.82.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21070752026-02-04 12:30:0937.188.222.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21070752026-02-04 12:30:092a00:102a:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21062882026-02-03 05:48:19212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
21058142026-02-02 13:34:38109.81.28.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21056552026-02-02 06:25:0437.188.249.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21056552026-02-02 06:25:042a00:102a:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)nounknownunknownnoneReport
21039942026-01-29 17:03:05109.81.94.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21031612026-01-28 12:16:19109.81.92.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
21023802026-01-27 06:24:46212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
21020632026-01-26 19:42:1985.90.198.x/248254 (Scana-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
21020572026-01-26 19:38:3185.90.198.x/248254 (Scana-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
21017962026-01-26 13:13:00212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
20999792026-01-22 16:46:1085.193.6.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20998792026-01-22 13:34:06109.81.16.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20998612026-01-22 12:52:21109.81.16.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20998482026-01-22 12:30:37109.81.16.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20984242026-01-20 05:16:12212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
20958232026-01-15 15:37:4485.193.6.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20939542026-01-12 15:53:03109.81.31.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20932972026-01-11 11:03:10109.81.93.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20924922026-01-09 15:50:17109.81.80.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20923002026-01-09 07:09:46212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
20921082026-01-08 19:39:445.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noblockedreceived/8Report
20921082026-01-08 19:39:442a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20919542026-01-08 14:29:2385.193.6.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20919502026-01-08 14:25:3585.193.6.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20906282026-01-06 11:15:57109.81.30.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20894142026-01-04 13:11:11109.81.86.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20893922026-01-04 12:07:42109.81.86.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20893882026-01-04 11:55:58109.81.86.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20884502026-01-02 06:01:02212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
20882892026-01-01 18:31:465.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noblockedreceived/8Report
20882892026-01-01 18:31:462a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20873772025-12-30 15:06:0891.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20872192025-12-30 11:20:22109.81.88.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20868432025-12-29 19:27:29109.81.16.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20868062025-12-29 18:24:07109.81.16.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20867962025-12-29 18:12:17109.81.16.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20861412025-12-28 12:43:03109.81.82.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20849952025-12-25 17:23:495.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/8Report
20849952025-12-25 17:23:492a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20845542025-12-24 13:15:01109.81.89.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20845542025-12-24 13:15:012a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20844872025-12-24 10:07:09109.81.92.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20840432025-12-23 13:57:3091.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20839732025-12-23 12:14:21109.81.26.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20839492025-12-23 11:32:38109.81.26.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20839392025-12-23 11:10:57109.81.26.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20839332025-12-23 10:59:19109.81.26.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20819582025-12-19 11:11:49109.81.26.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20819582025-12-19 11:11:492a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20814902025-12-18 16:49:36109.81.21.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20814902025-12-18 16:49:362a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20814672025-12-18 16:15:505.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/8Report
20814672025-12-18 16:15:502a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20814402025-12-18 15:32:525.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/8Report
20814402025-12-18 15:32:522a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20814172025-12-18 15:09:555.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/8Report
20814172025-12-18 15:09:552a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20814022025-12-18 14:56:585.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/8Report
20814022025-12-18 14:56:582a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20807982025-12-17 16:25:12109.81.83.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20807982025-12-17 16:25:122a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20805322025-12-17 06:33:35212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
20801312025-12-16 15:46:59109.81.23.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20801312025-12-16 15:46:592a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20793842025-12-15 16:08:46109.81.28.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20793842025-12-15 16:08:462a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20793752025-12-15 15:56:37109.81.28.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20793752025-12-15 15:56:372a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20793372025-12-15 14:54:4591.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20792302025-12-15 12:46:5391.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20783092025-12-13 10:48:5191.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20780612025-12-12 19:31:31109.81.82.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20780612025-12-12 19:31:312a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20773352025-12-11 17:39:16109.81.85.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20773352025-12-11 17:39:162a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20772182025-12-11 14:33:3779.127.196.x/2460068 (CDN77)cze (Czech Republic)yesunknownunknownnoneReport
20771832025-12-11 13:49:045.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/8Report
20771832025-12-11 13:49:042a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20767162025-12-10 19:12:07109.81.29.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20767162025-12-10 19:12:072a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20762782025-12-10 05:25:08212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
20751912025-12-08 13:29:22109.81.83.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20751912025-12-08 13:29:222a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20741632025-12-06 10:24:47109.81.28.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20741632025-12-06 10:24:472a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20741562025-12-06 09:40:2691.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20738562025-12-05 17:47:00109.81.26.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20738562025-12-05 17:47:002a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20714032025-12-01 14:32:33109.81.23.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20714032025-12-01 14:32:332a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20708642025-11-30 09:43:04109.81.89.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20708642025-11-30 09:43:042a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20705052025-11-29 17:10:51109.81.89.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20705052025-11-29 17:10:512a00:102b:50xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20699172025-11-28 14:26:16109.81.22.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20699172025-11-28 14:26:162a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20698972025-11-28 14:04:1891.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20693852025-11-27 16:43:13109.81.87.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
20693852025-11-27 16:43:132a00:102b:40xx::/405610 (O2-CZECH-REPUBLIC)cze (Czech Republic)noblockedblocked/64Report
20693382025-11-27 15:00:265.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noblockedreceived/8Report
20693382025-11-27 15:00:262a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20690812025-11-27 05:09:18212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
20672822025-11-24 06:44:4091.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20670672025-11-23 18:10:4091.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20653982025-11-20 14:53:195.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noblockedreceived/8Report
20653982025-11-20 14:53:192a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20653662025-11-20 13:52:325.59.249.x/24212271 (C1VFIBER-NET)cze (Czech Republic)noblockedreceived/8Report
20653662025-11-20 13:52:322a05:4140:xx::/40212271 (C1VFIBER-NET)cze (Czech Republic)noreceivedreceived/16Report
20639462025-11-18 05:41:22212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
20625272025-11-15 10:56:1391.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20614622025-11-13 14:06:0391.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20608042025-11-12 14:20:4491.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport
20560692025-10-30 13:53:1991.218.232.x/2451424 (ASAGNET)cze (Czech Republic)yesrewrittenrewrittennoneReport

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