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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
17101452024-01-29 11:02:3658.191.147.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
13940052022-07-02 16:03:3358.188.109.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
11384052021-05-07 09:23:09112.71.111.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
11343132021-04-30 07:08:04112.71.111.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
11343132021-04-30 07:08:042001:ce8:1xx::/4017511 (OPTAGE)jpn (Japan)noblockedblocked/64Report
11330912021-04-28 08:54:35112.71.111.x/2417511 (OPTAGE)jpn (Japan)yesunknownrewrittennoneReport
11330902021-04-28 08:52:03112.71.111.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
8002132019-12-03 03:01:43150.66.89.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
7535812019-09-19 04:11:18150.66.94.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
7381012019-08-23 05:56:27150.66.74.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
7183462019-07-18 23:37:09150.66.65.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
7098592019-07-05 03:38:56150.66.84.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
7045702019-06-26 04:07:06150.66.74.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
7045242019-06-26 02:01:14150.66.67.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
7045082019-06-26 01:35:29150.66.67.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
6943282019-06-08 06:04:40150.66.78.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
6784872019-05-13 04:02:05150.66.91.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
6190822019-02-05 20:28:33150.66.92.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
5674862018-11-08 01:50:16150.66.85.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
5422972018-09-26 10:32:03150.66.113.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
5087342018-07-27 14:13:47122.100.27.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
4324402018-03-23 03:51:2961.205.82.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
4195372018-03-01 23:52:0161.205.80.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
4191122018-03-01 10:41:2561.205.90.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
3819012017-12-30 13:24:5560.56.208.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport
3631882017-11-30 02:09:3061.205.6.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
2508162017-06-18 01:08:50182.165.172.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
2463612017-06-13 05:27:0961.205.83.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
2420802017-06-07 19:51:52182.165.172.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
2329612017-05-28 14:52:00182.165.172.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
2244092017-05-19 02:52:00182.165.172.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
2128632017-05-08 02:07:48182.165.172.x/2417511 (OPTAGE)jpn (Japan)yesrewrittenrewrittennoneReport
1657902017-03-16 08:35:3458.188.102.x/2417511 (OPTAGE)jpn (Japan)yesblockedblockednoneReport

All results shown
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