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Spoofing Information for AS 3320 (DTAG)

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Spoofing status per IP block for last year of data

(Results for all dates also available.)
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
62.157.65.x/242026-03-09 15:11:17 GMTblockedblocked
62.157.68.x/242026-09-02 01:38:32 GMTblockedblocked
62.157.70.x/242026-04-02 16:44:27 GMTblockedblocked
62.157.72.x/242026-03-06 19:08:13 GMTblockedblocked
62.157.74.x/242026-01-14 16:35:02 GMTblockedblocked
62.157.77.x/242026-01-28 17:24:37 GMTblockedblocked
79.207.65.x/242026-08-20 06:13:17 GMTblockedblocked
79.207.66.x/242026-04-15 11:56:19 GMTblockedblocked
79.207.68.x/242026-09-21 13:38:16 GMTblockedblocked
79.207.76.x/242026-05-11 13:45:42 GMTblockedblocked
79.207.77.x/242026-08-13 20:24:24 GMTblockedblocked
79.207.82.x/242026-09-07 07:15:26 GMTblockedblocked
79.207.84.x/242026-05-01 13:45:09 GMTblockedblocked
79.207.86.x/242026-09-26 09:41:37 GMTblockedblocked
79.207.87.x/242026-09-18 09:06:05 GMTblockedblocked
79.207.93.x/242026-07-01 16:43:39 GMTblockedblocked
79.224.96.x/242026-04-09 11:03:05 GMTrewrittenrewritten
79.224.100.x/242026-09-03 17:21:06 GMTblockedblocked
79.224.101.x/242026-02-24 17:36:00 GMTrewrittenrewritten
79.224.102.x/242026-05-21 17:22:03 GMTrewrittenrewritten
79.224.106.x/242026-04-12 09:26:55 GMTblockedblocked
79.224.109.x/242026-05-13 19:28:23 GMTblockedblocked
79.226.72.x/242025-11-13 12:27:53 GMTblockedblocked
79.235.212.x/242025-10-26 19:25:14 GMTblockedblocked
79.251.43.x/242026-04-02 02:20:55 GMTrewrittenrewritten
79.251.72.x/242026-10-23 13:49:36 GMTblockedblocked
80.135.139.x/242026-04-08 20:30:32 GMTblockedblocked
80.149.116.x/242026-02-13 18:10:18 GMTblockedblocked
80.149.125.x/242025-11-13 17:31:10 GMTblockedblocked
80.151.36.x/242025-11-26 11:46:36 GMTblockedblocked
84.134.205.x/242025-12-02 14:15:56 GMTblockedblocked
84.156.59.x/242026-06-28 12:57:49 GMTblockedblocked
84.163.145.x/242026-09-08 09:22:50 GMTblockedblocked
84.163.146.x/242026-08-10 11:00:57 GMTblockedblocked
84.163.147.x/242026-09-13 08:53:38 GMTblockedblocked
84.163.149.x/242026-05-06 11:47:19 GMTblockedblocked
84.163.151.x/242026-05-21 16:02:25 GMTblockedblocked
84.163.152.x/242026-09-21 16:42:19 GMTblockedblocked
84.163.153.x/242026-08-10 10:02:09 GMTblockedblocked
84.163.154.x/242026-09-05 15:48:57 GMTblockedblocked
84.163.155.x/242026-06-18 17:29:30 GMTblockedblocked
84.163.156.x/242026-07-27 14:10:33 GMTblockedblocked
84.163.158.x/242026-06-17 08:56:50 GMTblockedblocked
84.163.159.x/242026-08-11 14:39:50 GMTblockedblocked
84.168.52.x/242026-03-23 16:08:43 GMTblockedblocked
84.173.48.x/242026-04-27 14:01:16 GMTblockedblocked
84.173.50.x/242026-04-24 19:03:30 GMTblockedblocked
84.173.52.x/242026-07-18 12:36:45 GMTblockedblocked
84.173.53.x/242026-01-16 18:04:06 GMTblockedblocked
84.173.56.x/242026-09-30 15:56:26 GMTblockedblocked
84.173.57.x/242026-05-21 16:47:48 GMTblockedblocked
84.173.58.x/242026-10-16 21:41:10 GMTblockedblocked
84.173.60.x/242026-01-25 16:10:05 GMTblockedblocked
84.177.90.x/242026-07-15 07:45:36 GMTrewrittenrewritten
84.177.91.x/242026-09-12 18:24:46 GMTrewrittenrewritten
84.178.225.x/242025-11-21 07:13:36 GMTblockedblocked
84.178.226.x/242026-02-23 08:42:10 GMTblockedblocked
87.144.3.x/242026-05-03 03:02:16 GMTblockedblocked
87.145.218.x/242025-11-17 14:17:12 GMTblockedblocked
87.148.152.x/242026-03-02 12:33:03 GMTblockedblocked
87.148.153.x/242025-12-17 14:03:54 GMTblockedblocked
87.148.154.x/242026-02-27 07:21:20 GMTblockedblocked
87.157.97.x/242026-08-30 15:43:30 GMTblockedblocked
87.157.98.x/242026-08-11 04:34:17 GMTblockedblocked
87.157.104.x/242026-03-12 19:27:02 GMTblockedblocked
87.157.105.x/242026-06-30 21:13:51 GMTblockedblocked
87.157.109.x/242026-04-02 23:50:05 GMTblockedblocked
87.161.114.x/242026-01-29 21:53:17 GMTblockedblocked
87.170.244.x/242026-04-23 06:19:03 GMTunknownrewritten
91.0.227.x/242026-03-17 12:37:40 GMTrewrittenrewritten
91.14.95.x/242026-04-02 21:58:55 GMTblockedblocked
91.19.255.x/242026-04-16 06:19:03 GMTunknownrewritten
91.60.69.x/242026-10-13 07:51:03 GMTblockedblocked
93.196.240.x/242026-02-27 19:01:52 GMTblockedblocked
93.196.244.x/242026-02-20 19:03:18 GMTblockedblocked
93.196.245.x/242026-05-22 19:00:40 GMTblockedblocked
93.196.247.x/242026-10-03 10:05:14 GMTblockedblocked
93.196.250.x/242026-01-15 18:14:24 GMTblockedblocked
93.196.253.x/242026-06-19 20:26:33 GMTblockedblocked
93.196.255.x/242026-01-02 13:00:33 GMTblockedblocked
93.206.69.x/242026-01-08 13:54:26 GMTblockedblocked
93.206.74.x/242025-12-14 16:03:25 GMTblockedblocked
93.209.97.x/242026-07-01 15:11:26 GMTblockedblocked
93.209.102.x/242026-04-27 17:33:20 GMTblockedblocked
93.219.43.x/242026-06-04 14:18:44 GMTblockedblocked
93.221.244.x/242025-11-23 14:21:07 GMTblockedblocked
93.244.235.x/242026-06-18 20:42:51 GMTblockedblocked
93.244.246.x/242026-04-19 23:34:30 GMTblockedblocked
93.245.110.x/242026-05-31 13:48:24 GMTblockedblocked
217.91.216.x/242026-02-26 08:17:34 GMTblockedblocked
217.235.191.x/242025-12-11 20:35:44 GMTblockedblocked
217.238.129.x/242026-01-17 12:25:35 GMTblockedblocked
217.238.130.x/242026-07-10 21:35:32 GMTblockedblocked
217.238.136.x/242026-04-16 11:53:56 GMTblockedblocked
217.238.148.x/242026-03-11 16:15:20 GMTblockedblocked
217.238.153.x/242026-05-26 14:54:17 GMTblockedblocked
2003:6:31xx::/402026-06-01 15:36:33 GMTblockedblocked
2003:6:33xx::/402026-04-20 14:49:11 GMTblockedblocked
2003:c7:e7xx::/402026-03-02 12:33:03 GMTblockedblocked
2003:cf:5fxx::/402025-11-18 17:20:15 GMTblockedblocked
2003:d6:fxx::/402026-03-23 16:08:43 GMTblockedblocked
2003:e5:2fxx::/402026-05-03 03:02:16 GMTblockedblocked
2003:ec:97xx::/402026-02-15 16:09:11 GMTblockedblocked
2003:f0:7fxx::/402026-03-17 12:37:40 GMTblockedblocked
2003:f1:fxx::/402026-10-13 07:51:03 GMTblockedblocked
2a01:599:1xx::/402026-01-10 18:09:25 GMTblockedblocked
2a01:599:2xx::/402026-01-12 19:14:04 GMTblockedblocked
2a01:599:4xx::/402025-11-28 17:58:33 GMTblockedblocked
2a01:599:6xx::/402025-12-03 12:34:56 GMTblockedblocked
2a01:599:7xx::/402026-03-11 10:17:13 GMTblockedblocked
2a01:599:9xx::/402026-07-24 20:57:17 GMTblockedblocked
2a01:599:axx::/402026-08-23 05:53:19 GMTblockedblocked
2a01:599:bxx::/402026-08-28 19:04:10 GMTblockedblocked
2a01:599:cxx::/402026-07-11 10:24:58 GMTblockedblocked

Customers of AS 3320 we have spoofer tests from

This is the list of directly connected customers of AS 3320 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
8893 (ARTFILES-AS)deu (Germany)488AS 8893 testsblocked
12897 (ENTEGAMEDIANET)deu (Germany)599AS 12897 testsblocked
21263 (TELEDATA-AS)deu (Germany)6712AS 21263 testsblocked
13285 (OPALTELECOM-AS)gbr (United Kingdom)10614AS 13285 testsblocked
9063 (SAARGATE-AS)deu (Germany)14125AS 9063 testsblocked
2860 (NOS_COMUNICACOES)prt (Portugal)26757AS 2860 testsblocked
12337 (NORIS-NETWORK)deu (Germany)32728AS 12337 testsblocked
8412 (TMA)aut (Austria)42382AS 8412 testsblocked
15557 (LDCOMNET)fra (France)50899AS 15557 testsblocked
1136 (KPN)nld (Netherlands)67835AS 1136 testsblocked
3292 (TDC)dnk (Denmark)695140AS 3292 testsblocked
12912 (TMPL)pol (Poland)1023293AS 12912 testsblocked
8881 (VERSATEL)deu (Germany)1245224AS 8881 testsblocked
24940 (HETZNER-AS)deu (Germany)174287AS 24940 testsblocked
31898 (ORACLE-BMC-31898)usa (United States)206917AS 31898 testsblocked
8447 (A1TELEKOM-AT)aut (Austria)2447475AS 8447 testsblocked
49981 (WorldStream)nld (Netherlands)5595129AS 49981 testsblocked
3303 (SWISSCOM)che (Switzerland)10972920AS 3303 testsblocked
9121 (TTNet)tur (Turkey)256931022AS 9121 testsblocked
4837 (CHINA169-Backbone)chn (China)331191008AS 4837 testsblocked

Address Space Announcement History

The customer cone for 3320 is too large for a prefix list to be useful.

Last Modified