| Spoof status key | ||||
|---|---|---|---|---|
| received | Spoofed packet was received. | ✔ | Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. | |
| rewritten | Spoofed packet was received, but the source address was changed en route. | |||
| blocked | Spoofed packet was not received, but unspoofed packet was. | |||
| unknown | Neither spoofed nor unspoofed packet was received. | |||
| IP block | Latest test | Spoof Private | Spoof Routable | ||
|---|---|---|---|---|---|
| 5.22.10.x/24 | 2026-02-08 11:46:58 GMT | blocked | blocked | ||
| 5.22.47.x/24 | 2025-12-19 15:57:31 GMT | rewritten | rewritten | ||
| 5.22.109.x/24 | 2025-12-21 14:34:43 GMT | rewritten | rewritten | ||
| 5.52.129.x/24 | 2025-04-14 18:25:46 GMT | rewritten | rewritten | ||
| 5.52.167.x/24 | 2025-03-22 21:40:02 GMT | rewritten | rewritten | ||
| 5.52.191.x/24 | 2025-02-28 18:32:58 GMT | rewritten | rewritten | ||
| 5.52.237.x/24 | 2025-02-28 17:56:26 GMT | rewritten | rewritten | ||
| 5.106.254.x/24 | 2025-05-01 22:09:54 GMT | rewritten | rewritten | ||
| 5.201.205.x/24 | 2025-12-11 11:49:24 GMT | rewritten | rewritten | ||
| 5.201.249.x/24 | 2025-03-25 09:42:11 GMT | rewritten | rewritten | ||
| 5.201.254.x/24 | 2025-04-17 22:12:10 GMT | rewritten | rewritten | ||
| 5.208.118.x/24 | 2025-12-23 18:19:06 GMT | rewritten | rewritten | ||
| 5.208.143.x/24 | 2025-12-13 02:18:52 GMT | rewritten | rewritten | ||
| 5.209.98.x/24 | 2025-12-20 13:00:55 GMT | rewritten | rewritten | ||
| 5.209.156.x/24 | 2025-11-28 14:16:38 GMT | rewritten | rewritten | ||
| 5.209.170.x/24 | 2025-12-22 16:36:05 GMT | rewritten | rewritten | ||
| 5.210.35.x/24 | 2025-03-02 14:46:29 GMT | rewritten | rewritten | ||
| 5.210.41.x/24 | 2025-06-07 15:20:57 GMT | rewritten | rewritten | ||
| 5.210.169.x/24 | 2025-04-15 17:21:18 GMT | rewritten | rewritten | ||
| 5.210.205.x/24 | 2025-04-11 19:44:27 GMT | rewritten | rewritten | ||
| 5.211.10.x/24 | 2025-03-22 14:36:20 GMT | rewritten | rewritten | ||
| 5.211.91.x/24 | 2025-11-12 14:05:11 GMT | rewritten | rewritten | ||
| 5.211.170.x/24 | 2025-05-09 09:59:47 GMT | rewritten | rewritten | ||
| 5.211.255.x/24 | 2025-04-11 17:34:54 GMT | rewritten | rewritten | ||
| 5.212.33.x/24 | 2025-12-15 06:32:24 GMT | rewritten | rewritten | ||
| 5.212.113.x/24 | 2025-12-02 18:04:48 GMT | rewritten | rewritten | ||
| 5.212.120.x/24 | 2025-11-17 17:35:21 GMT | rewritten | rewritten | ||
| 5.212.143.x/24 | 2025-03-23 19:10:43 GMT | rewritten | rewritten | ||
| 5.212.168.x/24 | 2025-03-23 22:21:13 GMT | rewritten | rewritten | ||
| 5.212.178.x/24 | 2025-03-23 21:43:28 GMT | rewritten | rewritten | ||
| 5.212.246.x/24 | 2025-11-18 19:52:47 GMT | rewritten | rewritten | ||
| 5.215.0.x/24 | 2025-03-24 18:23:26 GMT | rewritten | rewritten | ||
| 5.215.92.x/24 | 2025-11-23 19:06:10 GMT | rewritten | rewritten | ||
| 5.215.94.x/24 | 2026-01-05 18:40:48 GMT | rewritten | rewritten | ||
| 5.215.156.x/24 | 2025-04-16 20:48:28 GMT | rewritten | rewritten | ||
| 5.215.175.x/24 | 2025-04-17 13:27:02 GMT | rewritten | rewritten | ||
| 5.215.220.x/24 | 2025-11-30 09:26:10 GMT | rewritten | rewritten | ||
| 5.215.235.x/24 | 2025-04-03 05:36:05 GMT | rewritten | rewritten | ||
| 5.217.22.x/24 | 2025-07-22 14:14:11 GMT | rewritten | rewritten | ||
| 5.217.151.x/24 | 2025-03-25 20:47:16 GMT | rewritten | rewritten | ||
| 5.217.164.x/24 | 2025-04-17 06:13:01 GMT | rewritten | rewritten | ||
| 5.217.167.x/24 | 2025-03-24 12:48:24 GMT | rewritten | rewritten | ||
| 5.217.203.x/24 | 2025-03-26 12:44:12 GMT | rewritten | rewritten | ||
| 5.217.217.x/24 | 2025-03-26 13:13:05 GMT | rewritten | rewritten | ||
| 5.218.130.x/24 | 2025-03-08 07:46:00 GMT | rewritten | rewritten | ||
| 5.218.206.x/24 | 2025-03-10 10:12:59 GMT | rewritten | rewritten | ||
| 37.98.14.x/24 | 2025-03-29 18:06:30 GMT | rewritten | rewritten | ||
| 37.98.26.x/24 | 2025-12-17 18:13:40 GMT | rewritten | rewritten | ||
| 37.98.84.x/24 | 2025-12-10 18:39:23 GMT | rewritten | rewritten | ||
| 37.129.40.x/24 | 2026-02-13 13:39:25 GMT | rewritten | rewritten | ||
| 37.129.88.x/24 | 2025-12-26 00:20:55 GMT | rewritten | rewritten | ||
| 83.121.144.x/24 | 2025-04-01 20:05:19 GMT | rewritten | rewritten | ||
| 83.122.85.x/24 | 2025-12-28 19:39:29 GMT | rewritten | rewritten | ||
| 83.123.4.x/24 | 2026-01-28 07:34:24 GMT | rewritten | rewritten | ||
| 83.123.9.x/24 | 2025-12-25 21:19:15 GMT | rewritten | rewritten | ||
| 83.123.123.x/24 | 2026-01-27 20:43:36 GMT | rewritten | rewritten | ||
| 89.198.40.x/24 | 2025-05-14 18:07:18 GMT | blocked | blocked | ||
| 89.198.65.x/24 | 2025-03-26 19:02:08 GMT | rewritten | rewritten | ||
| 89.198.182.x/24 | 2025-12-27 05:38:03 GMT | rewritten | rewritten | ||
| 89.198.202.x/24 | 2025-08-29 11:50:06 GMT | rewritten | rewritten | ||
| 89.199.13.x/24 | 2025-05-14 22:58:57 GMT | rewritten | rewritten | ||
| 89.199.154.x/24 | 2025-02-28 13:42:55 GMT | rewritten | rewritten | ||
| 89.199.180.x/24 | 2025-04-27 15:39:43 GMT | rewritten | rewritten | ||
| 91.133.138.x/24 | 2025-05-15 10:03:13 GMT | rewritten | rewritten | ||
| 91.133.198.x/24 | 2025-03-25 14:01:47 GMT | rewritten | rewritten | ||
| 91.251.65.x/24 | 2026-02-13 12:15:52 GMT | rewritten | rewritten | ||
| 91.251.84.x/24 | 2026-01-23 07:29:44 GMT | rewritten | rewritten | ||
| 91.251.98.x/24 | 2026-02-18 10:00:55 GMT | rewritten | rewritten | ||
| 91.251.154.x/24 | 2026-02-11 12:18:17 GMT | rewritten | rewritten | ||
| 91.251.223.x/24 | 2025-12-18 13:52:11 GMT | rewritten | rewritten | ||
| 93.110.118.x/24 | 2026-02-05 05:05:06 GMT | rewritten | rewritten | ||
| 93.110.129.x/24 | 2025-12-31 07:07:19 GMT | rewritten | rewritten | ||
| 93.110.140.x/24 | 2025-04-01 11:37:34 GMT | rewritten | rewritten | ||
| 93.110.161.x/24 | 2026-01-30 09:55:17 GMT | rewritten | rewritten | ||
| 93.110.184.x/24 | 2026-01-07 12:37:40 GMT | rewritten | rewritten | ||
| 93.110.244.x/24 | 2025-03-29 14:31:29 GMT | rewritten | rewritten | ||
| 95.64.102.x/24 | 2025-10-03 11:35:13 GMT | rewritten | rewritten | ||
| 109.203.144.x/24 | 2025-12-17 23:31:23 GMT | rewritten | rewritten | ||
| 109.203.151.x/24 | 2025-12-16 17:21:29 GMT | rewritten | rewritten | ||
| 109.203.152.x/24 | 2025-12-16 19:20:44 GMT | rewritten | rewritten | ||
| 109.225.143.x/24 | 2025-04-01 15:16:33 GMT | rewritten | rewritten | ||
| 113.203.78.x/24 | 2025-12-20 23:39:44 GMT | rewritten | rewritten | ||
| 113.203.112.x/24 | 2025-12-18 08:44:08 GMT | rewritten | rewritten | ||
| 158.58.30.x/24 | 2025-12-29 12:40:17 GMT | rewritten | rewritten | ||
| 158.58.50.x/24 | 2025-12-12 17:34:33 GMT | rewritten | rewritten | ||
| 158.58.61.x/24 | 2026-01-08 10:45:09 GMT | rewritten | rewritten | ||
| 158.58.94.x/24 | 2025-12-05 16:01:04 GMT | rewritten | rewritten | ||
| 204.18.151.x/24 | 2025-02-26 22:02:57 GMT | rewritten | rewritten | ||
| 2a02:4540:70xx::/40 | 2025-10-03 11:35:13 GMT | blocked | blocked | ||
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."
Year |2024 2025 2026
Month |Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb
——————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
5.22.0.0/17 |———————————————————————————————————————————————————————————————— ————————————————
5.52.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
5.106.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
5.201.192.0/18 |———————————————————————————————————————————————————————————————— ————————————————
5.208.0.0/13 |———————————————————————————————————————————————————————————————— ————————————————
5.216.0.0/15 |———————————————————————————————————————————————————————————————— ————————————————
5.218.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
5.250.0.0/17 |———————————————————————————————————————————————————————————————— ————————————————
31.2.128.0/17 |———————————————————————————————————————————————————————————————— ————————————————
37.63.128.0/17 |———————————————————————————————————————————————————————————————— ————————————————
37.98.0.0/18 |———————————————————————————————————————————————————————————————— ————————————————
37.98.80.0/20 | ————————————————
37.98.96.0/21 | ———— ————————————————
37.129.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
46.51.0.0/19 |———————————————————————————————————————————————————————————————— ————————————————
46.51.36.0/23 | ————————————————
46.51.36.0/24 |————————————————————————————————————————————————————————————————
46.51.40.0/21 | ————
46.51.40.0/24 | ————————
46.51.64.0/18 |———————————————————————————————————————————————————————————————— ————————————————
46.164.64.0/18 |———————————————————————————————————————————————————————————————— ————————————————
62.102.128.0/20 | ———— ————
62.102.128.0/21 | ————
62.102.132.0/22 | ———————————————————————————— ————————————
62.102.136.0/22 | ———————————————————————————————— ————————————
69.194.64.0/18 |———————————————————————————————————————————————————————————————— ————————————————
80.242.0.0/20 |———————————————————————————————————————————————————————————————— ————————————————
82.180.192.0/18 |———————————————————————————————————————————————————————————————— ————————————————
83.120.0.0/14 |———————————————————————————————————————————————————————————————— ————————————————
85.239.192.0/19 |———————————————————————————————————————————————————————————————— ————————————————
86.55.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
86.107.0.0/20 | ————————————
86.107.0.0/22 |———————————————————————————————————————————————————————————————— ————
86.107.4.0/23 |———————————————————————————————————————————————————————————————— ————
86.107.8.0/21 |———————————————————————————————————————————————————————————————— ————
86.107.208.0/20 |———————————————————————————————————— ————————————————
86.107.208.0/23 | ————————————————————————————
86.107.211.0/24 | ————————————————————————————
89.45.48.0/20 |———————————————————————————————————————————————————————————————— ————————————————
89.196.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
89.198.0.0/15 |———————————————————————————————————————————————————————————————— ————————————————
91.133.128.0/17 |———————————————————————————————————————————————————————————————— ————————————————
91.251.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
93.110.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
94.101.240.0/20 |———————————————————————————————————————————————————————————————— ————————————————
95.64.0.0/17 |———————————————————————————————————————————————————————————————— ————————————————
109.108.160.0/19 |———————————————————————————————————————————————————————————————— ————————————————
109.203.128.0/19 |———————————————————————————————————————————————————————————————— ————————————————
109.225.128.0/18 |———————————————————————————————————————————————————————————————— ————————————————
113.203.0.0/17 |———————————————————————————————————————————————————————————————— ————————————————
130.255.192.0/18 |———————————————————————————————————————————————————————————————— ————————————————
158.58.0.0/17 |———————————————————————————————————————————————————————————————— ————————————————
164.138.128.0/18 |———————————————————————————————————————————————————————————————— ————————————————
172.80.128.0/17 |———————————————————————————————————————————————————————————————— ————————————————
176.65.192.0/19 |———————————————————————————————————————————————————————————————— ————————————————
178.131.120.0/21 | ———— ————————————————
178.131.192.0/18 | ———————————————————————————————————————————————————————————— ————————————————
185.5.156.0/22 |———————————————————————————————————————————————————————————————— ————————————————
185.22.28.0/23 |————————————————————
185.22.29.0/24 | ———————————————————————————————————————————— ————————————————
185.55.224.0/24 | ————
185.131.56.0/22 |————————————————————————————
185.166.104.0/24 | ———————————————— ————
188.122.96.0/19 |———————————————————————————————————————————————————————————————— ————————————————
188.209.192.0/20 |———————————————————————————————————————————————————————————————— ————————————————
188.210.64.0/20 |———————————————————————————————————————————————————————————————— ————————————————
188.210.192.0/20 |———————————————————————————————————————————————————————————————— ————————————————
188.212.48.0/20 |———————————————————————————————————————————————————————————————— ————————————————
188.229.0.0/17 |————————————————————————————————————————————
188.229.0.0/18 | ———————————————————— ————————————————
188.229.64.0/19 | ———————————————————— ————————————————
188.229.116.0/23 | ———————————————————— ————————————————
192.15.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
194.34.163.0/24 | ———————————————— ————
204.18.0.0/16 |———————————————————————————————————————————————————————————————— ————————————————
——————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
2a02:4540::/41 |———————————————————————————————————————————————————————————————— ————————————
2a02:4540:80::/42 |———————————————————————————————————————————————————————————————— ————————————
2a02:4540:c0::/43 |———————————————————————————————————————————————————————————————— ————————————
2a02:4540:f8::/45 | ———————— ———————————————— ————————————
2a02:4540:5000::/41 |———————————————————————————————————————————————————————————————— ————————————
2a02:4540:5080::/43 |———————————————————————————————————————————————————————— ————————————
2a02:4540:5080::/44 | ————————
2a02:4540:50c0::/42 | ———————————— ————————————
2a02:4540:7000::/41 |———————————————————————————————————————————————————————————————— ————————————
2a02:4540:7080::/42 |————————————————————————————
2a02:4540:9000::/40 |————————————————————————————————————————————————————————————————
2a02:4540:9000::/41 | ————————————
2a02:4540:9080::/42 | ————————————
2a02:4540:9100::/42 | ————————————
2a02:4540:c000::/41 |———————————————————————————————————————————————————————————————— ————————————
2a02:4540:e000::/41 |———————————————————————————————————————————————————————————————— ————————————
2a02:4540:e080::/48 |———————————————————————————————————————————————————————————————— ————————————
2a02:4540:e0c0::/42 | ———— ————————————
2a02:4544:20e1::/48 | ————————
——————————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb
Year |2024 2025 2026
Year |2024 2025 2026
Month |Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
185.167.124.0/22 |———————————————————————————————————————————————————————————————— ————————————————
——————————————————————+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+——‒+
Month |Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb
Year |2024 2025 2026