AS174 Cogent Communications, LLC 🇺🇸 US
Announcing 4,364 prefixes, seen at the RIS collectors.
IPv4 prefixes
3,833
37,673,216 (147,161 × /24)
IPv6 prefixes
531
58 × /32
Upstreams
89
transit providers observed
Peers
23
settlement-free adjacencies
Downstreams
6,445
transit customers observed
Customer cone
67,198
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
3,833 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 149.5.115.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.126.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.169.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.5.190.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.191.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.194.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.5.208.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.5.213.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.5.229.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.6.0.0/15 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.6.16.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-21 |
| 149.6.127.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.6.194.0/23 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.6.212.0/22 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.6.217.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.6.218.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.6.219.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.1.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.2.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.6.0/23 v4 | no ROA | 13 | 37721174 | 2026-11-11 |
| 149.7.9.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.21.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.22.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.30.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.35.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.99.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.108.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.222.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.7.248.0/24 v4 | no ROA | 41 | 34549174 | 2026-10-12 |
| 149.9.0.0/16 v4 | RPKI valid | 41 | 34549174 | 2026-09-18 |
| 149.11.0.0/16 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.12.0.0/15 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.12.33.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.69.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.70.0/24 v4 | no ROA | 37 | 34549174 | 2026-09-18 |
| 149.12.112.0/21 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.177.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.194.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.195.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.210.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.211.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.212.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.214.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.216.0/22 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.220.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.12.222.0/23 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.8.0/21 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.28.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.30.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.32.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.37.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.67.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.73.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.95.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.97.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.114.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.117.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.121.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.122.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.124.0/23 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.13.127.0/24 v4 | no ROA | 13 | 37721174 | 2026-09-18 |
| 149.14.0.0/16 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.14.19.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.16.0.0/16 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.22.0.0/16 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.29.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.30.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.0.0/15 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.34.32.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.33.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.34.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.35.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.36.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.37.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.38.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.39.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.40.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.41.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.42.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.43.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.44.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.45.0/24 v4 | no ROA | 33 | 34549174 | 2026-09-18 |
| 149.34.46.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.34.47.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.36.0.0/16 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.8.0/21 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.36.34.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.36.35.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.36.40.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.43.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.45.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.46.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.54.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.55.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.56.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.36.57.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.36.58.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.36.59.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.36.60.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.36.61.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.36.62.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.36.63.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.36.68.0/22 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.36.224.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.225.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.226.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.227.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.230.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.36.240.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.36.241.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.38.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.40.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.50.0.0/15 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.51.102.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-21 |
| 149.51.103.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-21 |
| 149.51.106.0/24 v4 | no ROA | 41 | 34549174 | 2026-11-05 |
| 149.51.107.0/24 v4 | no ROA | 41 | 34549174 | 2026-11-05 |
| 149.52.0.0/15 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.66.0.0/15 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.128.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.129.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.130.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.131.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.132.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.133.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.134.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.135.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.136.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.137.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.138.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.139.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.140.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.141.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.142.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.143.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.144.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.145.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.146.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.147.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.148.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.149.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.150.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.151.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.152.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.153.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.154.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.155.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.156.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.157.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.158.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.71.159.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.78.0.0/16 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.78.137.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.85.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.86.0.0/15 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.87.128.0/18 v4 | no ROA | 42 | 34549174 | 2026-10-14 |
| 149.87.143.0/24 v4 | no ROA | 41 | 34549174 | 2026-11-05 |
| 149.87.176.0/23 v4 | no ROA | 42 | 34549174 | 2026-09-21 |
| 149.87.188.0/24 v4 | no ROA | 42 | 34549174 | 2026-10-14 |
| 149.87.189.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-21 |
| 149.87.190.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-21 |
| 149.87.191.0/24 v4 | no ROA | 41 | 34549174 | 2026-11-05 |
| 149.88.112.0/20 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.112.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.113.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.114.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.115.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.116.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.117.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.118.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.119.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.120.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.121.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.122.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.123.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.124.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.125.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.126.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.127.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.88.164.0/24 v4 | no ROA | 42 | 34549174 | 2026-10-14 |
| 149.88.166.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-21 |
| 149.88.167.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-21 |
| 149.88.168.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-21 |
| 149.88.222.0/24 v4 | no ROA | 42 | 34549174 | 2026-10-14 |
| 149.88.223.0/24 v4 | no ROA | 42 | 34549174 | 2026-10-14 |
| 149.91.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.91.2.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.91.3.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.91.138.0/24 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.92.0.0/14 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.100.0.0/16 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.100.8.0/24 v4 | no ROA | 29 | 34549174 | 2026-09-18 |
| 149.100.68.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.100.75.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.100.139.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.100.160.0/24 v4 | no ROA | 41 | 34549174 | 2026-09-18 |
| 149.100.165.0/24 v4 | no ROA | 42 | 34549174 | 2026-09-18 |
| 149.100.184.0/21 v4 | no ROA | 40 | 34549174 | 2026-09-18 |
| 149.102.0.0/16 v4 | no ROA | 42 | 34549174 | 2026-09-18 |