AS174 Cogent Communications, LLC 🇺🇸 US
Announcing 4,362 prefixes, seen at the RIS collectors.
IPv4 prefixes
3,832
37,672,960 (147,160 × /24)
IPv6 prefixes
530
58 × /32
Upstreams
92
transit providers observed
Peers
22
settlement-free adjacencies
Downstreams
6,446
transit customers observed
Customer cone
67,201
ASes reachable through it
Registry and operator data
- AS number
- AS174
- Name
- Cogent Communications, LLC
- Organisation
- Cogent Communications, Inc.
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 1996-05-16
- Network type
- NSP
- Traffic levels
- 100+Tbps
- Scope
- Global
- Peering policy
- No
- Website
- http://www.cogentco.com/
- Looking glass
- http://www.cogentco.com/en/network/looking-glass
- PeeringDB
- net/267
- Facilities
- 816
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
3,832 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 66.250.142.0/23 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 67.135.132.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 68.70.120.0/23 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 68.164.136.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-10-02 |
| 68.233.45.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 68.237.128.0/21 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 69.33.88.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.33.137.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.33.138.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.33.139.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.33.141.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.33.142.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.33.143.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.33.148.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.33.178.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.43.118.0/23 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 69.43.120.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 69.54.226.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 69.54.252.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 71.19.192.0/20 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 72.14.157.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 72.244.52.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-10-01 |
| 72.244.61.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-10-01 |
| 74.2.102.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 74.2.184.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 74.2.221.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-10-07 |
| 74.221.208.0/20 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 76.78.168.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 79.180.120.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-10-18 |
| 79.183.24.0/22 v4 | RPKI valid | 40 | 34549174 | 2026-10-20 |
| 80.66.128.0/20 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 80.77.64.0/20 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 80.77.96.0/20 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 80.91.64.0/19 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 80.91.80.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 80.91.81.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 80.91.83.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 80.93.0.0/20 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 80.174.114.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 80.174.117.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 80.174.123.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 80.174.124.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 80.174.125.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 80.174.126.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 80.245.32.0/19 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 80.245.33.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 80.245.36.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 80.245.37.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 80.245.62.0/23 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 81.2.128.0/18 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 81.2.130.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 81.2.149.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 82.47.24.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 82.47.190.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 82.47.208.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 82.47.228.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-21 |
| 82.129.0.0/17 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 82.129.4.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 82.129.5.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 82.129.6.0/23 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 82.129.66.0/23 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 82.138.64.0/18 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 82.139.205.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 82.153.47.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 82.153.48.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 82.195.160.0/19 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 82.195.184.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 83.147.22.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 85.149.196.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 85.237.96.0/19 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 85.255.84.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 87.86.160.0/22 v4 | RPKI invalid | 2 | 21628582806762174 | 2026-11-10 |
| 89.31.122.0/24 v4 | RPKI valid | 40 | 34549174 | 2026-09-18 |
| 89.191.192.0/19 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 89.191.195.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 89.191.213.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 91.198.26.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 91.208.170.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 91.220.175.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 91.229.58.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 91.232.99.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-21 |
| 92.71.160.0/19 v4 | RPKI valid | 41 | 34549174 | 2026-09-23 |
| 92.113.70.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 92.113.71.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 92.113.72.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 92.113.160.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 94.194.104.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-10-18 |
| 96.62.12.0/22 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 96.62.28.0/23 v4 | RPKI valid | 42 | 34549174 | 2026-09-21 |
| 100.43.22.0/23 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 102.129.145.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 102.129.152.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 102.129.153.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 103.247.128.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 103.247.130.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 104.37.56.0/22 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 104.152.4.0/23 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 104.153.208.0/22 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 104.156.135.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 104.161.8.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 104.167.229.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 104.171.192.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 104.192.220.0/22 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 104.234.130.0/23 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 104.234.162.0/23 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 104.239.24.0/22 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 104.239.68.0/22 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 104.239.120.0/22 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 107.166.16.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-10-03 |
| 107.166.24.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 107.166.100.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 108.175.96.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 108.175.97.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 108.175.99.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 108.175.110.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 109.65.48.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-10-18 |
| 109.175.242.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 109.234.212.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 120.138.32.0/19 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 128.14.25.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 128.145.0.0/16 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 130.51.105.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 130.117.0.0/16 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 130.117.5.0/24 v4 | no ROA | 8 | 37721174 | 2026-09-18 |
| 130.117.10.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.11.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.45.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.53.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.54.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.57.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.60.0/23 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.83.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.90.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.125.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.138.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.139.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.171.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.177.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.183.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.206.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.233.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 130.117.245.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 131.125.0.0/20 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 131.143.42.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 136.161.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 136.161.101.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 136.161.102.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 139.64.236.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 139.171.192.0/23 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 140.228.21.0/24 v4 | RPKI valid | 40 | 34549174 | 2026-09-18 |
| 140.228.24.0/24 v4 | RPKI valid | 40 | 34549174 | 2026-09-18 |
| 140.235.116.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 141.98.173.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 141.193.250.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 142.131.210.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 142.228.14.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.56.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.68.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.76.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.90.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.92.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.120.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.144.0/22 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.148.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.236.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.228.237.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 142.248.104.0/22 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 142.248.236.0/23 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 143.240.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 144.56.20.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 144.56.21.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-21 |
| 144.56.23.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 144.56.28.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 144.56.33.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 144.56.90.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 144.56.110.0/24 v4 | RPKI valid | 42 | 34549174 | 2026-09-18 |
| 144.223.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 144.224.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 144.228.0.0/15 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 144.232.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 148.135.193.0/24 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 148.253.244.0/23 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 148.254.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.2.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.5.0.0/16 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.2.0/24 v4 | no ROA | 33 | 34549174 | 2026-09-18 |
| 149.5.10.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.20.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.24.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.28.0/23 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.30.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.31.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.41.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.5.45.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.5.53.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.5.71.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.75.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.98.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.103.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.115.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |