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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
15857482023-06-05 07:36:1181.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15847642023-06-02 20:08:4137.48.50.x/2413036 (TMOBILE-CZ)cze (Czech Republic)yesblockedblockednoneReport
15844852023-06-02 10:53:59212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15827322023-05-30 08:59:5495.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/24Report
15820882023-05-29 06:29:4681.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15806682023-05-26 04:02:16212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15806682023-05-26 04:02:162a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15802702023-05-25 11:41:04195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15802602023-05-25 11:29:55195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15802212023-05-25 10:19:35195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15796362023-05-24 09:05:42212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15791122023-05-23 11:17:41212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15791122023-05-23 11:17:412a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15783072023-05-22 04:59:1881.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15774512023-05-20 07:41:5581.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15759142023-05-17 11:09:0595.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/24Report
15758502023-05-17 07:59:03212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15753672023-05-16 10:11:06212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15753672023-05-16 10:11:062a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15747222023-05-15 06:59:38195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15745582023-05-14 21:55:3681.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15745252023-05-14 19:56:5681.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15744742023-05-14 16:06:3481.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15735952023-05-12 13:20:4681.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15734522023-05-12 07:45:36188.75.144.x/24196735 (AS-JONCZ)cze (Czech Republic)yesunknownunknownnoneReport
15734382023-05-12 07:11:17188.75.144.x/24196735 (AS-JONCZ)cze (Czech Republic)yesblockedblockednoneReport
15722442023-05-10 06:52:24212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15715882023-05-09 00:48:16212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15715882023-05-09 00:48:162a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15712422023-05-08 11:11:08195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15708642023-05-07 15:00:0981.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15703702023-05-06 09:37:24185.52.173.x/24202131 (Wave-net)cze (Czech Republic)yesunknownunknownnoneReport
15703612023-05-06 09:21:55185.52.173.x/24202131 (Wave-net)cze (Czech Republic)yesunknownunknownnoneReport
15699312023-05-05 12:09:49195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15698342023-05-05 06:50:18195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15693622023-05-04 11:34:06195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15686792023-05-03 05:45:45212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15684852023-05-02 17:57:0695.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/24Report
15684322023-05-02 15:19:34195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15681272023-05-02 05:17:0481.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15680342023-05-01 23:41:51212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15675812023-04-30 18:42:2546.135.95.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15654332023-04-26 04:39:05212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15651492023-04-25 14:13:15195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15651412023-04-25 13:59:39195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15650422023-04-25 10:09:31195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15648192023-04-24 22:35:08212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15648192023-04-24 22:35:082a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15644002023-04-24 08:26:5381.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15641912023-04-23 20:37:4531.30.82.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesblockedblockednoneReport
15627792023-04-20 15:56:5595.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/24Report
15615262023-04-18 11:46:5737.48.33.x/2413036 (TMOBILE-CZ)cze (Czech Republic)yesrewrittenrewrittennoneReport
15611832023-04-17 19:49:19212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15611832023-04-17 19:49:192a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15610142023-04-17 14:10:1181.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15609012023-04-17 10:13:4881.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15605512023-04-16 15:09:47104.28.238.x/2413335 (CLOUDFLARENET)cze (Czech Republic)yesblockedblockednoneReport
15605512023-04-16 15:09:472a09:bac5:27xx::/4013335 (CLOUDFLARENET)cze (Czech Republic)yesunknownunknownnoneReport
15604372023-04-16 07:56:07195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15592112023-04-13 16:51:16104.28.238.x/2413335 (CLOUDFLARENET)cze (Czech Republic)yesblockedblockednoneReport
15592112023-04-13 16:51:162a09:bac5:27xx::/4013335 (CLOUDFLARENET)cze (Czech Republic)yesunknownunknownnoneReport
15591612023-04-13 15:06:0295.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/24Report
15559412023-04-07 13:01:4037.48.24.x/2413036 (TMOBILE-CZ)cze (Czech Republic)yesblockedblockednoneReport
15555622023-04-06 15:44:46212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15555622023-04-06 15:44:462a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15553022023-04-06 08:37:3081.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15552282023-04-06 04:37:02212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15548222023-04-05 11:31:2486.49.230.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesblockedblockednoneReport
15544112023-04-04 17:17:4895.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/25Report
15544032023-04-04 17:08:1095.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/25Report
15544012023-04-04 17:03:3795.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/25Report
15543802023-04-04 16:35:39195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15539542023-04-03 20:07:4695.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15538962023-04-03 18:18:08212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15538962023-04-03 18:18:082a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15538782023-04-03 17:41:4995.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/25Report
15534612023-04-03 01:19:1581.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15528502023-04-01 14:33:0081.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15512852023-03-29 10:25:1186.49.230.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesblockedblockednoneReport
15511732023-03-29 05:36:07212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15507712023-03-28 13:55:15195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15505962023-03-28 07:38:12195.122.192.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15502382023-03-27 17:11:35212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15502382023-03-27 17:11:352a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15502132023-03-27 16:35:4795.80.230.x/2429208 (DIALTELECOM-AS)cze (Czech Republic)yesrewrittenblocked/25Report
15502062023-03-27 16:31:2486.49.231.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesblockedblockednoneReport
15491992023-03-25 13:26:4181.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15474022023-03-22 08:26:39212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesrewrittenrewrittennoneReport
15468672023-03-21 11:06:4546.135.7.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15464172023-03-20 16:05:01212.79.106.x/248251 (NFX_ZSPO)cze (Czech Republic)yesblockedblockednoneReport
15464172023-03-20 16:05:012a01:490:xx::/408251 (NFX_ZSPO)cze (Czech Republic)noblockedblocked/64Report
15463912023-03-20 15:25:0486.49.231.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesblockedblockednoneReport
15454062023-03-18 12:20:1881.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15447362023-03-17 07:33:22212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15429772023-03-14 14:45:3281.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15422302023-03-13 12:12:3281.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15417372023-03-12 12:28:5286.49.231.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesblockedblockednoneReport
15406982023-03-10 06:26:44212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15395322023-03-08 07:32:2581.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15383962023-03-06 11:06:0281.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15380752023-03-05 17:23:3581.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15379052023-03-05 06:59:2586.49.231.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesblockedblockednoneReport
15368602023-03-03 06:53:35212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15359542023-03-01 17:39:2781.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15358812023-03-01 15:28:2746.135.23.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesrewrittenrewrittennoneReport
15338462023-02-25 21:35:4786.49.231.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesblockedblockednoneReport
15338462023-02-25 21:35:472a02:8308:40xx::/4016019 (VODAFONE-CZ-AS)cze (Czech Republic)noblockedblocked/64Report
15330102023-02-24 05:46:54212.111.9.x/2425424 (INEXT-CZ)cze (Czech Republic)yesblockedblockednoneReport
15321562023-02-22 16:33:0581.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport
15309682023-02-20 16:10:5085.160.58.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
15304672023-02-19 16:03:5985.160.58.x/245610 (O2-CZECH-REPUBLIC)cze (Czech Republic)yesunknownunknownnoneReport
15300942023-02-18 20:29:0786.49.230.x/2416019 (VODAFONE-CZ-AS)cze (Czech Republic)yesblockedblockednoneReport
15300942023-02-18 20:29:072a02:8308:40xx::/4016019 (VODAFONE-CZ-AS)cze (Czech Republic)noblockedblocked/64Report
15294972023-02-17 16:58:0481.90.251.x/2439761 (ABAK)cze (Czech Republic)yesrewrittenrewrittennoneReport

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