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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/242026-01-16 16:06:37 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
79.207.66.x/242026-04-15 11:56:19 GMTblockedblocked
79.207.76.x/242026-05-11 13:45:42 GMTblockedblocked
79.207.82.x/242026-02-11 09:28:51 GMTblockedblocked
79.207.84.x/242026-05-01 13:45:09 GMTblockedblocked
79.207.93.x/242026-06-16 08:09:08 GMTblockedblocked
79.224.96.x/242026-04-09 11:03:05 GMTrewrittenrewritten
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
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
80.155.46.x/242025-09-17 15:58:28 GMTblockedblocked
84.134.205.x/242025-12-02 14:15:56 GMTblockedblocked
84.163.146.x/242026-05-23 12:57:00 GMTblockedblocked
84.163.149.x/242026-05-06 11:47:19 GMTblockedblocked
84.163.151.x/242026-05-21 16:02:25 GMTblockedblocked
84.163.153.x/242026-03-14 17:54:42 GMTblockedblocked
84.163.154.x/242026-03-22 10:04:24 GMTblockedblocked
84.163.155.x/242026-06-18 17:29:30 GMTblockedblocked
84.163.158.x/242026-06-17 08:56:50 GMTblockedblocked
84.163.159.x/242026-03-18 13:52:10 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/242026-06-20 11:45:33 GMTblockedblocked
84.173.53.x/242026-01-16 18:04:06 GMTblockedblocked
84.173.57.x/242026-05-21 16:47:48 GMTblockedblocked
84.173.60.x/242026-01-25 16:10:05 GMTblockedblocked
84.177.90.x/242026-04-19 05:27:12 GMTrewrittenrewritten
84.178.225.x/242025-11-21 07:13:36 GMTblockedblocked
84.178.226.x/242026-02-23 08:42:10 GMTblockedblocked
87.129.186.x/242025-10-08 14:57:33 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
87.157.98.x/242025-08-01 19:08:39 GMTblockedblocked
87.157.103.x/242025-06-23 13:18:17 GMTblockedblocked
87.157.104.x/242026-03-12 19:27:02 GMTblockedblocked
87.157.105.x/242026-06-16 19:00:10 GMTblockedblocked
87.157.109.x/242026-04-02 23:50:05 GMTblockedblocked
87.157.110.x/242025-06-24 07:15:45 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
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
93.196.250.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/242026-06-20 20:39:40 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
93.222.194.x/242025-09-10 10:53:53 GMTblockedblocked
93.224.27.x/242025-10-04 08:57:13 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
192.145.8.x/242025-09-26 19:00:15 GMTblockedblocked
217.91.216.x/242026-02-26 08:17:34 GMTblockedblocked
217.228.197.x/242025-09-11 13:12:59 GMTblockedblocked
217.228.200.x/242025-09-20 01:48:03 GMTblockedblocked
217.228.202.x/242025-08-21 06:55:54 GMTblockedblocked
217.228.204.x/242025-10-04 10:29:40 GMTblockedblocked
217.228.205.x/242025-10-07 14:11:36 GMTblockedblocked
217.228.206.x/242025-08-27 06:20:52 GMTblockedblocked
217.235.177.x/242025-09-11 13:04:29 GMTblockedblocked
217.235.186.x/242025-10-13 10:55:18 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/242026-02-11 13:32:40 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
217.245.3.x/242025-07-24 15:49:22 GMTblockedblocked
217.245.5.x/242025-09-16 10:55:32 GMTblockedblocked
217.245.7.x/242025-07-21 14:36:11 GMTblockedblocked
217.245.11.x/242025-09-17 13:37:32 GMTblockedblocked
217.245.12.x/242025-07-11 10:10:13 GMTblockedblocked
217.245.13.x/242025-09-18 12:49:22 GMTblockedblocked
2003:6:31xx::/402026-06-01 15:36:33 GMTblockedblocked
2003:6:33xx::/402026-04-20 14:49:11 GMTblockedblocked
2003:c5:6fxx::/402025-09-10 10:53:53 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:e0:afxx::/402025-08-22 16:34:16 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
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::/402026-06-10 20:58:44 GMTblockedblocked
2a01:599:axx::/402025-11-07 19:45:07 GMTblockedblocked
2a01:599:bxx::/402025-09-17 14:52:08 GMTblockedblocked
2a01:599:cxx::/402026-06-02 14:53:27 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
201701 (FFRL-AS)deu (Germany)94AS 201701 testsblocked
8893 (ARTFILES-AS)deu (Germany)5110AS 8893 testsblocked
12897 (ENTEGAMEDIANET)deu (Germany)599AS 12897 testsblocked
21263 (TELEDATA-AS)deu (Germany)6712AS 21263 testsblocked
13285 (OPALTELECOM-AS)gbr (United Kingdom)10714AS 13285 testsblocked
20676 (PLUSNET)deu (Germany)20726AS 20676 testsblocked
8560 (IONOS-AS)usa (United States)22311AS 8560 testsblocked
2860 (NOS_COMUNICACOES)prt (Portugal)22848AS 2860 testsblocked
12337 (NORIS-NETWORK)deu (Germany)33328AS 12337 testsblocked
8412 (TMA)aut (Austria)42378AS 8412 testsblocked
15557 (LDCOMNET)fra (France)51198AS 15557 testsblocked
1136 (KPN)nld (Netherlands)69840AS 1136 testsblocked
553 (BELWUE)deu (Germany)74525AS 553 testsblocked
8881 (VERSATEL)deu (Germany)1080189AS 8881 testsblocked
8447 (A1TELEKOM-AT)aut (Austria)1328283AS 8447 testsblocked
12912 (TMPL)pol (Poland)1875316AS 12912 testsblocked
31898 (ORACLE-BMC-31898)usa (United States)188121AS 31898 testsblocked
24940 (HETZNER-AS)deu (Germany)214286AS 24940 testsblocked
9121 (TTNet)tur (Turkey)20737936AS 9121 testsblocked
3303 (SWISSCOM)che (Switzerland)225371548AS 3303 testsblocked
4837 (CHINA169-Backbone)chn (China)26666927AS 4837 testsblocked

Address Space Announcement History

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

Last Modified