Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.
29,146,880 IP addresses
Details
| IPv4 addresses | 29,146,880 |
|---|---|
| IPv6 /64 networks | 1.13 x 238 |
| Prefixes | 3,899 |
Other ASN allocated to Cogent Communications
| ASN | Name | IP addresses |
|---|---|---|
| 6494 | COGENT-6494 | 3,328 |
| 2149 | COGENT-2149 | 256 |
Prefixes for AS174
IPv4 addresses - showing the first 20 of 3,205 networks
| Network | Location | Addresses | |
|---|---|---|---|
| 103.119.112.0/24 | Cogent Communications |  Amsterdam |
256 |
| 103.209.12.0/22 | Cogent Communications |  Denver |
1,024 |
| 103.247.128.0/22 | iTalkBB Australia Pty Ltd |  Melbourne (City of Port Phillip) |
1,024 |
| 103.250.205.0/24 | Cogent Communications |  Wellington (Khandallah) |
256 |
| 103.253.96.0/22 | Cogent Communications |  Montreal (Saint-Laurent) |
1,024 |
| 103.75.217.0/24 | Cogent Communications |  Frankfurt am Main |
256 |
| 103.75.218.0/24 | Cogent Communications | Frankfurt am Main |
256 |
| 103.75.219.0/24 | Cogent Communications | Frankfurt am Main |
256 |
| 104.118.220.0/22 | Cogent Communications | Atlanta |
1,024 |
| 104.143.247.0/24 | Cogent Communications | Washington D.C. |
256 |
| 104.171.204.0/22 | Cogent Communications | Ottawa (Nepean) |
1,024 |
| 104.192.120.0/21 | Cogent Communications | Sainte-Catherine |
2,048 |
| 104.192.208.0/21 | Cogent Communications | Montreal (Saint-Léonard) |
2,048 |
| 104.218.61.0/24 | Cogent Communications | Vancouver |
256 |
| 104.222.184.0/24 | Cogent Communications | Ashburn |
256 |
| 104.222.185.0/24 | Cogent Communications | Ashburn |
256 |
| 104.222.186.0/24 | Cogent Communications | Ashburn |
256 |
| 104.222.187.0/24 | Cogent Communications | Ashburn |
256 |
| 104.225.212.0/24 | My Digital Shield | Seattle |
256 |
| 104.225.213.0/24 | Cogent Communications | Atlanta |
256 |
IPv6 addresses - showing the first 20 of 694 networks
| Network | Location | /64 Prefixes | |
|---|---|---|---|
| 2001:49f0:2920::/48 | Cogent Communications | Chicago |
216 |
| 2001:49f0:a000::/36 | Cogent Communications | Denver |
228 |
| 2001:49f0:a004::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a005::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a006::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a007::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a008::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a009::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a00a::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a00c::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a00d::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a00f::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a010::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a014::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a015::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a016::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a019::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a01b::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a01e::/48 | Cogent Communications | Denver |
216 |
| 2001:49f0:a020::/48 | Cogent Communications | Downers Grove |
216 |