COGENT COMMUNICATIONS GROUP, LLC
Cogent Communications, LLC
GLEIF verified
LEI
549300KFWFYF8Q1U0Y26
Registered name
COGENT COMMUNICATIONS GROUP, LLC
Jurisdiction
Ultimate parent
No parent on file in GLEIF
Cluster stats
| Netblocks | 4,828 |
| All fragments | 4,891 blocks across 4 clusters |
| Cluster ID | 204396936 |
| Registry | APNIC |
| Owner jurisdiction | US-DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 549300KFWFYF8Q1U0Y26 |
| Shared handles | clustered on 100 shared RIR contact/maintainer handles |
| Registry names | 19 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
4 weekly snapshots · JSON
4,891
+115 netblocks since 2026-07-05
2026-07-05
peak 4,891
2026-07-13
IP Ranges (4,828)
showing 50 of 4,828 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 80.174.114.0/24 | Cogent-Communications-LLC | RIPE | SUB-ALLOCATED PA | ● high |
| 80.174.123.0/24 | Cogent-Communications-LLC | RIPE | SUB-ALLOCATED PA | ● high |
| 117.239.144.96/28 | cogent | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 155.178.69.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● high |
| 155.178.70.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● high |
| 192.33.4.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● high |
| 195.238.96.0/24 | Cogent-Communications-LLC | RIPE | SUB-ALLOCATED PA | ● high |
| 198.176.213.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● high |
| 198.176.214.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● high |
| 204.6.192.0/18 | Cogent Communications, LLC | BGP | ANNOUNCED | ● high |
| 208.7.91.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● high |
| 208.11.210.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● high |
| 216.151.168.0/24 | Cogent Communications | ARIN | ● high | |
| 2001:500:2::/48 | Cogent Communications, LLC | BGP | ANNOUNCED | ● high |
| 2.58.4.0/22 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 5.83.217.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 5.83.219.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 5.157.72.0/21 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 8.24.64.0/23 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 8.24.72.0/23 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 16.5.168.0/23 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 16.5.170.0/23 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.26.130.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.135.116.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.135.124.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.141.196.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.141.204.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.141.212.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.141.228.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.142.100.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.144.28.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.144.60.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.146.76.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.146.116.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.148.44.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.148.60.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.148.68.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.148.92.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.148.116.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.148.124.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.148.164.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.151.196.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.161.96.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 23.237.93.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 37.34.88.0/21 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 37.49.150.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 38.0.0.0/8 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 38.0.0.0/8 | Cogent Communications, LLC | ARIN | ● low | |
| 38.3.128.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
| 38.3.180.0/24 | Cogent Communications, LLC | BGP | ANNOUNCED | ● low |
Corporate group (4 confirmed entities)
+1 additional unconfirmed candidate not shown — full list (JSON)- Cogent Communications, LLC 47 blocks
- Cogent Communications, LLC 9 blocks
- Cogent Communications, LLC 7 blocks
Network trust
what's this?
RPKI hygiene: F
how networks compare →
14.8%
of checked blocks have valid RPKI ROA coverage
(295 of 2,000, sampled from 4,828)
Possible discrepancies (5)
These blocks are registered to Cogent Communications, LLC but cryptographically authorized for a different, unrelated network (3 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 208.72.198.0/23 /23 | authorized for AS14618 — Amazon.com, Inc. |
| 205.164.240.0/24 /24 | authorized for AS273238 — AS273238 |
| 208.72.192.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
| 103.131.64.0/24 /24 | authorized for AS63989 — Dot Enterprise Co.,Ltd. |
| 103.131.65.0/24 /24 | authorized for AS63989 — Dot Enterprise Co.,Ltd. |
NIC Handles
A2-MNT
AB1061-AP
AC1578-AP
AD679-AP
AE150-AP
AE278-AP
AG545-AP
AG545-AP
APNIC-HM
AS174
AS1790
AS1803
+88 more