AS174 Cogent Communications, LLC 🇺🇸 US
Announcing 4,518 prefixes, seen at the RIS collectors.
IPv4 prefixes
3,989
37,641,216 (147,036 × /24)
IPv6 prefixes
529
58 × /32
Upstreams
84
transit providers observed
Peers
24
settlement-free adjacencies
Downstreams
6,424
transit customers observed
Customer cone
65,622
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
4,518 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 38.107.67.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.69.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.80.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.96.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.114.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.140.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.212.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.218.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.219.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.220.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.222.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.241.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.246.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.247.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.248.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.249.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.107.254.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.5.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.15.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.66.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.74.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.77.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.100.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.122.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.126.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.128.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.130.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.136.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.138.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.140.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.141.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.164.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.165.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.168.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.170.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.172.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.176.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.177.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.180.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.182.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.183.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.193.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.200.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.108.238.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.109.0.0/21 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.69.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.70.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.90.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.101.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.107.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.144.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.163.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.178.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.179.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.180.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.184.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.189.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.190.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.193.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.196.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.203.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.204.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.209.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.234.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.109.251.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.7.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.12.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.16.0/21 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.47.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.58.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.61.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.66.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.116.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.117.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.122.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.128.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.110.131.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.146.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.158.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.217.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.226.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.227.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.110.228.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.8.0/24 v4 | RPKI invalid | 6 | 22652174 | 2026-09-18 |
| 38.111.11.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.16.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.18.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.56.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.61.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.96.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.113.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.115.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.149.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.157.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.161.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.163.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.164.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.176.0/22 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.176.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.177.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.178.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.179.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.181.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.184.0/21 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.184.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.185.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.186.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.187.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.188.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.189.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.190.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.191.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 38.111.192.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.193.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.195.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.197.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.206.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.207.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.219.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.240.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.242.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.248.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.111.252.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.112.60.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.112.61.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.112.63.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.113.88.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.113.114.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.113.116.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.113.126.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.113.127.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.113.130.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.113.170.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.113.172.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.113.181.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.114.107.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.114.115.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.114.116.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.114.202.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.114.221.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.114.222.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.115.153.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.116.28.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.116.192.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.67.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.72.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.81.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.85.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.122.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.127.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.140.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.156.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.176.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.178.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.117.203.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.118.15.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.118.26.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.118.78.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.119.137.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.119.166.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.20.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.33.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.41.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.44.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.54.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.60.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.96.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.112.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.114.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.118.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 38.121.119.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.120.0/23 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.124.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.139.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.145.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.170.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.190.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.121.193.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.2.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.3.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.4.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.6.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.7.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.18.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.19.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.23.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.40.0/22 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.69.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.77.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.135.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.143.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.173.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.175.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.192.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.205.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.206.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.207.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.221.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.222.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |
| 38.123.227.0/24 v4 | no ROA | 12 | 37721174 | 2026-09-18 |