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Spoofing Information for AS 37680 (COOL-IDEAS)

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Spoofing status per IP block (all dates)

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.
IP blockLatest testSpoof
Private		Spoof
Routable
102.132.140.x/242020-09-22 22:38:42 GMTrewrittenrewritten
102.132.141.x/242019-04-17 12:12:33 GMTrewrittenrewritten
102.132.148.x/242021-09-19 05:49:52 GMTrewrittenrewritten
102.132.150.x/242022-04-11 04:59:45 GMTrewrittenrewritten
102.132.155.x/242023-07-26 11:04:04 GMTrewrittenreceived
102.132.160.x/242023-01-27 15:17:19 GMTrewrittenrewritten
102.132.161.x/242020-01-22 10:17:49 GMTrewrittenrewritten
102.132.162.x/242022-05-14 06:42:49 GMTrewrittenrewritten
102.132.163.x/242021-02-18 23:48:04 GMTrewrittenrewritten
102.132.165.x/242021-05-15 08:27:05 GMTrewrittenrewritten
102.132.167.x/242022-05-03 14:44:08 GMTrewrittenrewritten
102.132.179.x/242023-07-09 12:05:37 GMTblockedblocked
102.132.190.x/242023-09-25 11:06:46 GMTblockedblocked
102.132.198.x/242022-08-07 06:51:59 GMTblockedblocked
102.132.218.x/242020-11-27 07:34:13 GMTrewrittenreceived
102.132.224.x/242022-04-16 12:02:43 GMTblockedblocked
102.132.245.x/242021-09-13 07:21:17 GMTrewrittenrewritten
154.0.3.x/242017-11-10 06:37:45 GMTreceivedreceived
154.0.7.x/242017-01-27 12:03:27 GMTrewrittenrewritten
154.0.8.x/242022-05-10 05:41:51 GMTrewrittenrewritten
154.0.14.x/242018-01-17 17:28:58 GMTreceivedreceived
154.0.15.x/242018-01-12 20:06:15 GMTrewrittenrewritten
155.93.131.x/242020-03-08 12:49:32 GMTrewrittenrewritten
155.93.136.x/242016-11-11 16:30:59 GMTrewrittenrewritten
155.93.141.x/242021-11-10 02:34:40 GMTrewrittenrewritten
155.93.144.x/242017-07-20 01:13:27 GMTrewrittenrewritten
155.93.145.x/242017-05-01 11:14:00 GMTrewrittenrewritten
155.93.154.x/242022-07-01 07:44:29 GMTrewrittenrewritten
155.93.163.x/242019-11-05 13:45:17 GMTrewrittenrewritten
155.93.165.x/242020-12-13 22:41:26 GMTrewrittenrewritten
155.93.170.x/242019-11-15 17:21:29 GMTblockedblocked
155.93.173.x/242019-05-22 22:33:06 GMTblockedblocked
155.93.174.x/242018-12-28 20:29:25 GMTblockedblocked
155.93.177.x/242019-05-15 09:42:40 GMTblockedblocked
155.93.180.x/242021-05-27 15:57:17 GMTrewrittenrewritten
155.93.181.x/242020-02-04 15:07:38 GMTrewrittenrewritten
155.93.182.x/242019-02-12 14:34:23 GMTrewrittenrewritten
155.93.183.x/242019-10-12 00:08:04 GMTrewrittenrewritten
155.93.184.x/242020-09-02 04:26:50 GMTrewrittenrewritten
155.93.185.x/242022-06-17 05:31:41 GMTrewrittenrewritten
155.93.186.x/242020-12-22 03:49:31 GMTrewrittenrewritten
155.93.188.x/242020-06-19 10:17:43 GMTrewrittenrewritten
155.93.192.x/242017-01-25 17:32:37 GMTrewrittenrewritten
155.93.194.x/242019-11-20 19:33:26 GMTrewrittenrewritten
155.93.197.x/242021-05-12 13:42:16 GMTunknownrewritten
155.93.199.x/242020-06-21 10:03:26 GMTrewrittenrewritten
155.93.207.x/242020-07-12 11:54:32 GMTreceivedreceived
155.93.227.x/242023-04-25 18:07:00 GMTblockedblocked
2c0f:f9a8:xx::/402016-09-20 07:17:46 GMTreceivedreceived

Customers of AS 37680 we have spoofer tests from

This is the list of directly connected customers of AS 37680 from which we have received a spoofer test, ordered by the customer's ability to send spoofed packets and the number of prefixes of an inferred ingress ACL derived from prefix announcements for the customer recorded in the latest month of public BGP data. BCP-84 describes ingress ACLs as "the most bulletproof solution when done properly" and the "best fit ... when the configuration is not too dynamic, ... if the number of used prefixes is low." Further detail about the size and dynamism of an inferred ACL is available by following the History link for each AS.

ASNCountryNumber of Prefixes
in Customer Cone		Number of ASes
in Customer Cone		Recent
tests		Spoof
Routable
37611 (Afrihost)zaf (South Africa)181AS 37611 testsblocked

Address Space Announcement History

This is the address space announcement history of an AS and its customer cone, derived from prefix announcements for the AS recorded in public BGP data. For each month, we have aggregated more specific prefix announcements into contiguous address blocks, where possible. The goal of this page is to allow a network operator to judge the feasibility of deploying a static ingress access control list for their border router connecting to the AS. BCP-84 describes Ingress ACLs as "the most bulletproof solution when done properly" and the "best fit ... when the configuration is not too dynamic, ... if the number of used prefixes is low."

Address Space Announcements: 37680 (COOL-IDEAS)

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
102.132.128.0/17 |————————————————————————————————————————————————————————————————————————————————————————————————————
102.223.148.0/22 | ———————————————————— ————————————————————————————————————
154.0.0.0/20 |————————————————————————————————————————————————————————————————————————————————————————————————————
155.93.128.0/17 |————————————————————————————————————————————————————————————————————————————————————————————————————
169.255.164.0/22 | ———————— ————————————————
169.255.164.0/23 |———————————————————————————————————————————————————————— ————
————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
2c0f:f9a8::/32 |————————————————————————————————————————————————————————————————————————————————————————————————————
————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Customers

Address Space Announcements: 36916 (X-DSL-NET1)

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
41.138.92.0/22 |————————————————————————————————————————————————————————————————————————————————————————————————————
41.180.0.0/16 |———————————— ————
41.180.0.0/17 | ————————————————————————————————————————————————————————————————————————————————————
41.180.144.0/20 | ————————————————————————————————————————————————————————————————————
41.180.152.0/22 | ————————————————
41.180.160.0/20 | ———————————————————————————————————————————————— ————
41.180.160.0/22 | ————————————————
41.180.164.0/22 | ————————————————
41.180.168.0/21 | ————————————————
41.180.168.0/22 | ————————————————
41.180.188.0/22 | ————————————
41.180.196.0/22 | ————————————
41.180.208.0/22 | ————————————
41.180.216.0/21 | ————————————————————————————————————————————————————————————————————
41.180.216.0/22 | ————————————————
41.180.224.0/19 | ————————————
41.180.224.0/20 | ————————
41.180.224.0/21 | ————————————————————————————————————————————————
41.180.224.0/22 | ————————————————
41.180.232.0/22 | ————————————————
41.180.236.0/22 | ————————————————————————————————————————————————
41.180.240.0/20 | ————————————————
41.180.248.0/21 | ————————————————————————————————————————————————————————
41.221.224.0/20 | ————————————————————————————————————————————————————————————————————————————————————————
41.221.224.0/22 |————————————
41.221.230.0/23 |————————————
41.221.232.0/23 |————————————
41.221.235.0/24 |————————————
41.221.236.0/22 |————————————
41.223.60.0/22 |————————————————————————————————————————————————————————————————————————————————————————————————————
——————————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
2c0f:fcb0::/32 |————————————————————————————————————————————————————————————————————————————————————————————————————
——————————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 37611 (Afrihost)

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
41.76.208.0/21 |————————————————————————————————————————————————————————————————————————————————————————————————————
102.182.0.0/16 |————————————————————————————————————————————————————————————————————————————————————————————————————
102.212.96.0/22 | ————————
102.219.29.0/24 |————————————————————————————————————————————————————————————————————————————————————————————————————
102.219.160.0/22 | ————————
102.222.124.0/22 |———————————————————————————————————————— ———————— ————————
102.223.56.0/22 | ————————
154.0.160.0/20 |————————————————————————————————————————————————————————————————————————————————————————————————————
156.155.0.0/16 |————————————————————————————————————————————————————————————————————————————————————————————————————
165.73.0.0/17 |————————————————————————————————————————————————————————————————————————————————————————————————————
165.255.0.0/16 |————————————————————————————————————————————————————————————————————————————————————————————————————
169.0.0.0/15 |————————————————————————————————————————————————————————————————————————————————————————————————————
192.143.0.0/16 |————————————————————————————————————————————————————————————————————————————————————————————————————
197.242.144.0/20 |————————————————————————————————————————————————————————————————————————————————————————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
2c0e:7f00::/28 | ————————————————————————————————————————
2c0f:ef20::/32 |————————————————————————————————————————————————————————————————————————————————————————————————————
2c0f:f4c0::/32 |————————————————————————————————————————————————————————————————————————————————————————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 210096 (Stemconnect)

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
85.235.76.0/22 |————————————————————————————————————————————————————————————————————————————————————————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 327878 (Estate-Connexions)

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
169.255.164.0/22 | ————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 328241 (G-Connect-AS)

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
204.8.205.0/24 |————————————————————————————————————————————————————————————————————————————————————————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 328337 (VivaTelecoms-AS)

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
102.134.64.0/21 |————————————————————————————————————————————————————————————————————————————————————————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
2c0f:ef40::/32 |————————————————————————————————————————————————————————————————————————————————————————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 328966

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
102.217.216.0/22 | ————————————————————————————————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 329084

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
102.215.152.0/22 | ————————————
102.215.152.0/23 | ————————————
102.215.152.0/24 | ————————————————————————————————————————————————————————
102.215.155.0/24 | ————————————————————————————————————————
——————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 329112

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
102.221.140.0/23 | ————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 329325

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
102.211.56.0/22 | ————————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024

Address Space Announcements: 329391

Year |2022 2023 2024
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
102.210.8.0/22 | ————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
2c0f:2b40::/32 | ————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr
Year |2022 2023 2024
Last Modified