Autonomous System details
AS1239
Cogent Communications, LLC — cogentco.com
Summary
| Country |
 United States
|
| Organization | Cogent Communications, LLC |
| Domain | cogentco.com |
| Number of IPv4 | 122,880 |
| Number of IPv6 | 2.1392× 1030 |
| AS Type | Business |
| Registry | ARIN |
| Allocated | March 25, 1991 (about 35 years ago) |
| Updated | December 23, 2025 (about 7 months ago) |
IP Ranges
AS1239 announces 55 IPv4 ranges and 24 IPv6 ranges.
That's a total of 122,880 IPv4 addresses and 2.1392× 1030 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 46.17.32.0/21 |
 Cce Cogent Internet Services Limited
|
2,048 | RIPE NCC | ALLOCATED PA |
| 64.40.152.0/24 |
Private Customer
|
256 | ARIN | REASSIGNMENT |
| 65.110.42.0/24 |
TREJJCOMMS
|
256 | ARIN | REASSIGNMENT |
| 66.251.158.0/23 |
 Gbt Cloud
|
512 | AFRINIC | ASSIGNED PA |
| 69.33.141.0/24 |
Scott Flores LLC
|
256 | ARIN | REASSIGNMENT |
| 72.14.157.0/24 |
Private Customer
|
256 | ARIN | REASSIGNMENT |
| 74.117.114.0/23 |
Parked.com, LTD
|
512 | ARIN | ALLOCATION |
| 74.117.116.0/22 |
Parked.com, LTD
|
1,024 | ARIN | ALLOCATION |
| 80.66.128.0/20 |
 Sprintlink Be
|
4,096 | RIPE NCC | ASSIGNED PA |
| 80.77.64.0/20 |
 Sprintlink Dk
|
4,096 | RIPE NCC | ASSIGNED PA |
| 80.77.96.0/20 |
 Sihi Scandivavia Ab
|
4,096 | RIPE NCC | ALLOCATED PA |
| 80.93.0.0/20 |
Sprintlink Ie
|
4,096 | RIPE NCC | ASSIGNED PA |
| 82.195.160.0/19 |
 Sprintlink UK LTD
|
8,192 | RIPE NCC | ALLOCATED PA |
| 85.237.96.0/19 |
 Cogent Communications France SAS
|
8,192 | RIPE NCC | ALLOCATED PA |
| 86.38.145.0/24 |
HOSTINGRS-BITE
|
256 | RIPE NCC | ASSIGNED PA |
| 88.216.212.0/22 |
Private Customer
|
1,024 | RIPE NCC | ASSIGNED PA |
| 89.191.192.0/19 |
Vitecgroup
|
8,192 | RIPE NCC | ASSIGNED PA |
| 92.113.70.0/24 |
Private Customer
|
256 | RIPE NCC | ASSIGNED PA |
| 92.113.71.0/24 |
Private Customer
|
256 | RIPE NCC | ASSIGNED PA |
| 92.113.72.0/24 |
Private Customer
|
256 | RIPE NCC | ASSIGNED PA |
| 92.113.160.0/24 |
Private Customer
|
256 | RIPE NCC | ASSIGNED PA |
| 104.167.229.0/24 |
Endoffice, LLC
|
256 | ARIN | REASSIGNMENT |
| 104.234.12.0/24 |
Huize Telecom
|
256 | ARIN | REASSIGNMENT |
| 120.138.32.0/19 |
 013 Netvision
|
8,192 | APNIC | ASSIGNED NON-PORTABLE |
| 120.138.38.0/24 |
 Aquamarine, Bagmane World Technolog
|
256 | APNIC | ASSIGNED NON-PORTABLE |
| 120.138.48.0/21 |
 THE IMPERIAL HOTEL TWR
|
2,048 | APNIC | ASSIGNED NON-PORTABLE |
| 120.138.56.0/22 |
 Sprintlink Asia Pacific Region - Thailand
|
1,024 | APNIC | ALLOCATED NON-PORTABLE |
| 139.64.236.0/22 |
Nexus Bytes LLC
|
1,024 | ARIN | ALLOCATION |
| 161.199.227.0/24 |
Private Customer
|
256 | ARIN | REASSIGNMENT |
| 173.244.48.0/24 |
Private Internet Access, INC
|
256 | ARIN | REASSIGNMENT |
| 185.170.68.0/22 |
Customer of Ipxo
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.221.217.0/24 |
Global Managed Hosting Inc.
|
256 | RIPE NCC | ALLOCATED PA |
| 194.233.28.0/23 |
Plusserver GmbH
|
512 | RIPE NCC | SUB-ALLOCATED PA |
| 199.48.182.0/24 |
IPXO LLC
|
256 | ARIN | REALLOCATION |
| 199.101.171.0/24 |
Private Customer
|
256 | ARIN | REASSIGNMENT |
| 203.98.192.0/19 |
 Sprint International Australia Pty LTD
|
8,192 | APNIC | ALLOCATED PORTABLE |
| 203.185.184.0/22 |
Sprint International Australia Pty LTD
|
1,024 | APNIC | ASSIGNED PORTABLE |
| 203.222.32.0/19 |
Sprint International Australia Pty LTD
|
8,192 | APNIC | ALLOCATED PORTABLE |
| 203.222.160.0/19 |
Sprint International Australia Pty LTD
|
8,192 | APNIC | ALLOCATED PORTABLE |
| 203.222.162.0/24 |
Sprint International Australia Pty LTD
|
256 | APNIC | ALLOCATED PORTABLE |
| 203.222.172.0/22 |
Electronic Arts - Australia
|
1,024 | APNIC | ASSIGNED NON-PORTABLE |
| 203.222.185.0/24 |
Sprint International Australia Pty LTD
|
256 | APNIC | ALLOCATED PORTABLE |
| 206.53.58.0/24 |
Private Customer
|
256 | ARIN | REASSIGNMENT |
| 208.82.80.0/22 |
Northern Skies Wireless LLC
|
1,024 | ARIN | ALLOCATION |
| 213.178.143.0/24 |
Host4geeks LLC
|
256 | RIPE NCC | ALLOCATED PA |
| 213.206.128.0/19 |
Sprintlink UK
|
8,192 | RIPE NCC | ASSIGNED PA |
| 216.177.132.0/24 |
Private Customer
|
256 | ARIN | REASSIGNMENT |
| 216.185.56.0/24 |
Private Customer
|
256 | ARIN | REASSIGNMENT |
| 217.9.246.0/24 |
HOSTINGRS-BITE
|
256 | RIPE NCC | ASSIGNED PA |
| 217.118.224.0/20 |
Sprintlink Fr
|
4,096 | RIPE NCC | ASSIGNED PA |
| 217.147.96.0/20 |
 Sprintlink Germany GmbH
|
4,096 | RIPE NCC | ALLOCATED PA |
| 217.147.128.0/20 |
 Sprintlink IT
|
4,096 | RIPE NCC | ASSIGNED PA |
| 217.149.32.0/20 |
 Sprintlink Nl
|
4,096 | RIPE NCC | ASSIGNED PA |
| 217.151.240.0/20 |
Sprintlink Germany GmbH
|
4,096 | RIPE NCC | ALLOCATED PA |
| 217.172.168.0/23 |
Plusserver GmbH
|
512 | RIPE NCC | SUB-ALLOCATED PA |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2403:a800::/32 |
Sprint International Australia Pty LTD
|
7.9228× 1028 | APNIC | ALLOCATED PORTABLE |
| 2a02:bf8::/32 |
Sprintlink UK LTD
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a0b:3c40:10::/48 |
Access2.it Group B.V.
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a0c:9e06::/32 |
Access2.it Group B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0d:ecc0::/32 |
TheHostProject
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0d:ecc1::/32 |
TheHostProject
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0d:ecc2::/32 |
TheHostProject
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0d:ecc3::/32 |
TheHostProject
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0d:ecc4::/32 |
TheHostProject
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0d:ecc5::/32 |
TheHostProject
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0d:ecc6::/32 |
TheHostProject
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0d:ecc7::/32 |
TheHostProject
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0e:a944::/32 |
Access2.it Group B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0e:a945::/32 |
Access2.it Group B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0e:a946::/32 |
Access2.it Group B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0e:a947::/32 |
Access2.it Group B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0e:f200:3::/48 |
Panda Supply LLC
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a0f:3b80::/32 |
Access2.it Group B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0f:3b81::/32 |
Access2.it Group B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0f:3b82::/32 |
Access2.it Group B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0f:3b83::/32 |
Access2.it Group B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a0f:4cc0::/29 |
Aventice LLC
|
6.3383× 1029 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a10:3a80:e::/48 |
Dedserver Hosting LLC
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a10:3a80:f::/48 |
Dedserver Hosting LLC
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
Peers
AS1239 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS1239 connects to the global Internet via at least 1 upstream provider. In this setup, AS1239 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS1239 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS1239's role in extending Internet access beyond its own infrastructure.