AS174 COGENT-174
Country
Network type
Datacenter / hosting
IPv4 prefixes
5,240
IPv4 addresses
24,632,703
IPv6 prefixes
255
Registered
1996-05-16 · whois.arin.net
- registrant
- Cogent Communications, LLC
- noc
- Cogent Communications
- abuse
- Cogent Abuse
- technical, administrative
- IP Allocation
IPv4 prefixes
Page 1| CIDR | First address | Last address | Addresses |
|---|---|---|---|
| 2.58.4.0/22 | 2.58.4.0 | 2.58.7.255 | 1,024 |
| 5.83.219.0/24 | 5.83.219.0 | 5.83.219.255 | 256 |
| 5.157.72.0/21 | 5.157.72.0 | 5.157.79.255 | 2,048 |
| 8.24.64.0/23 | 8.24.64.0 | 8.24.65.255 | 512 |
| 8.24.72.0/23 | 8.24.72.0 | 8.24.73.255 | 512 |
| 16.5.118.0/23 | 16.5.118.0 | 16.5.119.255 | 512 |
| 16.5.168.0/22 | 16.5.168.0 | 16.5.171.255 | 1,024 |
| 16.5.198.0/24 | 16.5.198.0 | 16.5.198.255 | 256 |
| 23.26.130.0/24 | 23.26.130.0 | 23.26.130.255 | 256 |
| 23.135.116.0/24 | 23.135.116.0 | 23.135.116.255 | 256 |
| 23.135.124.0/24 | 23.135.124.0 | 23.135.124.255 | 256 |
| 23.141.196.0/24 | 23.141.196.0 | 23.141.196.255 | 256 |
| 23.141.212.0/24 | 23.141.212.0 | 23.141.212.255 | 256 |
| 23.142.100.0/24 | 23.142.100.0 | 23.142.100.255 | 256 |
| 23.146.76.0/24 | 23.146.76.0 | 23.146.76.255 | 256 |
| 23.146.116.0/24 | 23.146.116.0 | 23.146.116.255 | 256 |
| 23.148.44.0/24 | 23.148.44.0 | 23.148.44.255 | 256 |
| 23.148.60.0/24 | 23.148.60.0 | 23.148.60.255 | 256 |
| 23.148.68.0/24 | 23.148.68.0 | 23.148.68.255 | 256 |
| 23.148.92.0/24 | 23.148.92.0 | 23.148.92.255 | 256 |
| 23.148.116.0/24 | 23.148.116.0 | 23.148.116.255 | 256 |
| 23.148.124.0/24 | 23.148.124.0 | 23.148.124.255 | 256 |
| 23.148.164.0/24 | 23.148.164.0 | 23.148.164.255 | 256 |
| 23.151.196.0/24 | 23.151.196.0 | 23.151.196.255 | 256 |
| 23.161.96.0/24 | 23.161.96.0 | 23.161.96.255 | 256 |
| 23.167.168.0/24 | 23.167.168.0 | 23.167.168.255 | 256 |
| 23.227.92.0/22 | 23.227.92.0 | 23.227.95.255 | 1,024 |
| 23.234.144.0/22 | 23.234.144.0 | 23.234.147.255 | 1,024 |
| 23.237.93.0/24 | 23.237.93.0 | 23.237.93.255 | 256 |
| 37.34.88.0/21 | 37.34.88.0 | 37.34.95.255 | 2,048 |
| 37.49.150.0/24 | 37.49.150.0 | 37.49.150.255 | 256 |
| 38.0.0.0/15 | 38.0.0.0 | 38.1.255.255 | 131,072 |
| 38.2.128.0/21 | 38.2.128.0 | 38.2.135.255 | 2,048 |
| 38.2.143.0/24 | 38.2.143.0 | 38.2.143.255 | 256 |
| 38.2.229.0/24 | 38.2.229.0 | 38.2.229.255 | 256 |
| 38.3.0.0/20 | 38.3.0.0 | 38.3.15.255 | 4,096 |
| 38.3.32.0/19 | 38.3.32.0 | 38.3.63.255 | 8,192 |
| 38.3.128.0/23 | 38.3.128.0 | 38.3.129.255 | 512 |
| 38.3.144.0/22 | 38.3.144.0 | 38.3.147.255 | 1,024 |
| 38.3.161.0/24 | 38.3.161.0 | 38.3.161.255 | 256 |
| 38.3.171.0/24 | 38.3.171.0 | 38.3.171.255 | 256 |
| 38.3.180.0/22 | 38.3.180.0 | 38.3.183.255 | 1,024 |
| 38.3.187.0/24 | 38.3.187.0 | 38.3.187.255 | 256 |
| 38.3.191.0/24 | 38.3.191.0 | 38.3.191.255 | 256 |
| 38.3.202.0/23 | 38.3.202.0 | 38.3.207.255 | 1,536 |
| 38.3.223.0/24 | 38.3.223.0 | 38.3.223.255 | 256 |
| 38.4.4.0/22 | 38.4.4.0 | 38.4.15.255 | 3,072 |
| 38.4.32.0/24 | 38.4.32.0 | 38.4.32.255 | 256 |
| 38.4.34.0/23 | 38.4.34.0 | 38.4.47.255 | 3,584 |
| 38.4.50.0/23 | 38.4.50.0 | 38.4.55.255 | 1,536 |
| 38.4.57.0/24 | 38.4.57.0 | 38.4.57.255 | 256 |
| 38.4.96.0/20 | 38.4.96.0 | 38.4.111.255 | 4,096 |
| 38.4.120.0/21 | 38.4.120.0 | 38.4.127.255 | 2,048 |
| 38.4.144.0/21 | 38.4.144.0 | 38.4.151.255 | 2,048 |
| 38.4.160.0/20 | 38.4.160.0 | 38.4.175.255 | 4,096 |
| 38.4.184.0/22 | 38.4.184.0 | 38.4.189.255 | 1,536 |
| 38.4.192.0/20 | 38.4.192.0 | 38.4.209.255 | 4,608 |
| 38.4.212.0/22 | 38.4.212.0 | 38.4.219.255 | 2,048 |
| 38.4.224.0/20 | 38.4.224.0 | 38.4.239.255 | 4,096 |
| 38.4.248.0/21 | 38.4.248.0 | 38.5.16.255 | 6,400 |
| 38.5.17.0/24 | 38.5.17.0 | 38.5.255.255 | 61,184 |
| 38.7.64.0/20 | 38.7.64.0 | 38.7.79.255 | 4,096 |
| 38.7.96.0/23 | 38.7.96.0 | 38.7.97.255 | 512 |
| 38.7.99.0/24 | 38.7.99.0 | 38.7.99.255 | 256 |
| 38.7.108.0/23 | 38.7.108.0 | 38.7.109.255 | 512 |
| 38.7.119.0/24 | 38.7.119.0 | 38.7.119.255 | 256 |
| 38.7.121.0/24 | 38.7.121.0 | 38.7.127.255 | 1,792 |
| 38.7.129.0/24 | 38.7.129.0 | 38.7.131.255 | 768 |
| 38.7.160.0/19 | 38.7.160.0 | 38.7.191.255 | 8,192 |
| 38.7.224.0/19 | 38.7.224.0 | 38.8.255.255 | 73,728 |
| 38.9.33.0/24 | 38.9.33.0 | 38.9.33.255 | 256 |
| 38.9.41.0/24 | 38.9.41.0 | 38.9.43.255 | 768 |
| 38.9.51.0/24 | 38.9.51.0 | 38.9.52.255 | 512 |
| 38.9.54.0/23 | 38.9.54.0 | 38.9.55.255 | 512 |
| 38.9.121.0/24 | 38.9.121.0 | 38.9.121.255 | 256 |
| 38.9.177.0/24 | 38.9.177.0 | 38.9.177.255 | 256 |
| 38.9.211.0/24 | 38.9.211.0 | 38.9.211.255 | 256 |
| 38.9.214.0/23 | 38.9.214.0 | 38.9.215.255 | 512 |
| 38.10.0.0/24 | 38.10.0.0 | 38.10.0.255 | 256 |
| 38.10.2.0/23 | 38.10.2.0 | 38.10.23.255 | 5,632 |
| 38.10.25.0/24 | 38.10.25.0 | 38.10.31.255 | 1,792 |
| 38.10.90.0/23 | 38.10.90.0 | 38.10.91.255 | 512 |
| 38.10.93.0/24 | 38.10.93.0 | 38.10.94.255 | 512 |
| 38.10.100.0/23 | 38.10.100.0 | 38.10.101.255 | 512 |
| 38.10.117.0/24 | 38.10.117.0 | 38.10.117.255 | 256 |
| 38.10.120.0/21 | 38.10.120.0 | 38.10.127.255 | 2,048 |
| 38.10.150.0/24 | 38.10.150.0 | 38.10.150.255 | 256 |
| 38.10.156.0/22 | 38.10.156.0 | 38.10.175.255 | 5,120 |
| 38.10.192.0/19 | 38.10.192.0 | 38.10.223.255 | 8,192 |
| 38.10.244.0/23 | 38.10.244.0 | 38.10.245.255 | 512 |
| 38.12.0.0/18 | 38.12.0.0 | 38.12.63.255 | 16,384 |
| 38.13.128.0/21 | 38.13.128.0 | 38.13.135.255 | 2,048 |
| 38.13.140.0/22 | 38.13.140.0 | 38.13.191.255 | 13,312 |
| 38.15.0.0/20 | 38.15.0.0 | 38.15.16.255 | 4,352 |
| 38.15.22.0/24 | 38.15.22.0 | 38.15.22.255 | 256 |
| 38.15.31.0/24 | 38.15.31.0 | 38.15.31.255 | 256 |
| 38.15.160.0/21 | 38.15.160.0 | 38.15.167.255 | 2,048 |
| 38.15.190.0/23 | 38.15.190.0 | 38.15.191.255 | 512 |
| 38.16.0.0/16 | 38.16.0.0 | 38.16.255.255 | 65,536 |
| 38.17.16.0/20 | 38.17.16.0 | 38.17.43.255 | 7,168 |
IPv6 prefixes
2001:550::/39 · 2001:550:105::/44 · 2001:550:10a::/38 · 2001:550:20c::/39 · 2001:550:302::/37 · 2001:550:403::/44 · 2001:550:40a::/43 · 2001:550:412::/39 · 2001:550:502::/38 · 2001:550:602::/45 · 2001:550:607::/39 · 2001:550:703::/36 · 2001:550:908::/47 · 2001:550:90a::/47 · 2001:550:90c::/43 · 2001:550:914::/38 · 2001:550:a02::/45 · 2001:550:a05::/44 · 2001:550:a0e::/43 · 2001:550:a14::/44 · 2001:550:a1e::/42 · 2001:550:a28::/46 · 2001:550:a2c::/39 · 2001:550:b02::/37 · 2001:550:c06::/47 · 2001:550:c08::/39 · 2001:550:d01::/46 · 2001:550:d03::/45 · 2001:550:d05::/44 · 2001:550:d09::/46 · 2001:550:d0d::/38 · 2001:550:e03::/45 · 2001:550:e06::/39 · 2001:550:f01::/46 · 2001:550:f03::/35 · 2001:550:1101::/38 · 2001:550:1203::/44 · 2001:550:120b::/39 · 2001:550:1306::/37 · 2001:550:1402::/47 · 2001:550:1405::/38 · 2001:550:1602::/39 · 2001:550:1701::/40 · 2001:550:1801::/46 · 2001:550:1803::/45 · 2001:550:1808::/39 · 2001:550:1902::/45 · 2001:550:1906::/38 · 2001:550:1b01::/44 · 2001:550:1b0b::/37
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