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.
9,804,032 IP addresses
Network
| ASN | 3561 |
|---|---|
| Name | CENTURYLINK-LEGACY-SAVVIS - Savvis |
| Organization | CenturyLink Communications, LLC |
| Country | United States |
| Registry | ARIN |
Details
| IPv4 addresses | 9,804,032 |
|---|---|
| IPv6 /64 networks | 233 |
| Prefixes | 652 |
Other ASN allocated to CenturyLink Communications, LLC
Prefixes for AS3561
IPv4 addresses - showing the first 20 of 634 networks
| Network | Location | Addresses | |
|---|---|---|---|
| 103.5.199.0/24 | CenturyLink Communications, LLC |  Mei Hwan |
256 |
| 137.177.100.0/24 | CenturyLink Communications, LLC |  Sterling |
256 |
| 137.177.101.0/24 | CenturyLink Communications, LLC | Sterling |
256 |
| 137.177.102.0/24 | CenturyLink Communications, LLC | Sterling |
256 |
| 137.177.103.0/24 | CenturyLink Communications, LLC | Sterling |
256 |
| 137.177.80.0/21 | CenturyLink Communications, LLC | Cincinnati (Central Business District) |
2,048 |
| 137.177.88.0/21 | CenturyLink Communications, LLC | Cincinnati (Central Business District) |
2,048 |
| 137.177.96.0/24 | CenturyLink Communications, LLC | Sterling |
256 |
| 137.177.97.0/24 | CenturyLink Communications, LLC | Sterling |
256 |
| 137.177.98.0/24 | CenturyLink Communications, LLC | Sterling |
256 |
| 137.177.99.0/24 | CenturyLink Communications, LLC | Sterling |
256 |
| 137.183.80.0/20 | CenturyLink Communications, LLC | Cincinnati (Central Business District) |
4,096 |
| 143.36.208.0/22 | CenturyLink Communications, LLC | Singapore |
1,024 |
| 143.36.212.0/22 | CenturyLink Communications, LLC | Singapore |
1,024 |
| 143.36.216.0/22 | CenturyLink Communications, LLC | Singapore |
1,024 |
| 143.36.220.0/23 | CenturyLink Communications, LLC | Singapore |
512 |
| 143.36.222.0/23 | CenturyLink Communications, LLC | Singapore |
512 |
| 143.8.144.0/20 | CenturyLink Communications, LLC | Los Angeles |
4,096 |
| 143.8.144.0/24 | CenturyLink Communications, LLC | Los Angeles |
256 |
| 143.8.145.0/24 | CenturyLink Communications, LLC | Singapore |
256 |
IPv6 addresses
| Network | Location | /64 Prefixes | |
|---|---|---|---|
| 2001:460:100::/46 | CenturyLink Communications, LLC | Chandler |
218 |
| 2001:460:18:3e00::/55 | CenturyLink Communications, LLC | Chicago (Near South Side) |
29 |
| 2001:460:18:8000::/52 | CenturyLink Communications, LLC | Chicago (Loop) |
212 |
| 2001:460:50:6000::/52 | CenturyLink Communications, LLC | Chicago (Loop) |
212 |
| 2001:460:50:6004::/64 | CenturyLink Communications, LLC | Weehawken |
20 |
| 2001:460:58:8000::/52 | CenturyLink Communications, LLC | Chicago (Loop) |
212 |
| 2001:460:58:8004::/64 | CenturyLink Communications, LLC | Chicago (Loop) |
20 |
| 2001:460:68:2000::/52 | CenturyLink Communications, LLC | Chicago |
212 |
| 2001:460:68:2200::/56 | CenturyLink Communications, LLC | Chicago |
28 |
| 2001:460:70::/46 | CenturyLink Communications, LLC |  Shinagawa |
218 |
| 2001:460:78:2000::/52 | CenturyLink Communications, LLC | San Francisco |
212 |
| 2001:460:78::/46 | CenturyLink Communications, LLC | San Francisco |
218 |
| 2001:460:80::/46 | CenturyLink Communications, LLC | Chicago |
218 |
| 2001:460:9::/48 | CenturyLink Communications, LLC | Chicago (Loop) |
216 |
| 2001:460::/32 | CenturyLink Communications, LLC | Chandler |
232 |
| 2620:123:a006::/48 | CenturyLink Communications, LLC | San Francisco |
216 |
| 2620:20:e000::/48 | CenturyLink Communications, LLC | Canton |
216 |
| 2a02:5860::/32 | CenturyLink Communications, LLC | New York |
232 |
