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.
18,196,352 IP addresses
Network
| ASN | 209 |
|---|---|
| Name | CENTURYLINK-US-LEGACY-QWEST - Qwest Communications Company, LLC |
| Organization | CenturyLink Communications, LLC |
| Country | United States |
| Registry | ARIN |
Details
| IPv4 addresses | 18,196,352 |
|---|---|
| IPv6 /64 networks | 1.01 x 240 |
| Prefixes | 6,988 |
Other ASN allocated to CenturyLink Communications, LLC
Prefixes for AS209
IPv4 addresses - showing the first 20 of 6,523 networks
| Network | Location | Addresses | |
|---|---|---|---|
| 104.100.171.0/24 | CenturyLink Communications, LLC |  New York |
256 |
| 104.109.130.0/23 | CenturyLink Communications, LLC | New York |
512 |
| 104.109.132.0/22 | CenturyLink Communications, LLC | New York |
1,024 |
| 104.109.144.0/20 | CenturyLink Communications, LLC | New York |
4,096 |
| 104.109.160.0/20 | CenturyLink Communications, LLC | New York |
4,096 |
| 104.152.83.0/24 | CityNet Arizona LLC | Phoenix (Encanto) |
256 |
| 104.152.84.0/23 | CityNet Arizona LLC | Phoenix (Encanto) |
512 |
| 104.152.86.0/24 | CityNet Arizona LLC | Phoenix (Encanto) |
256 |
| 104.152.87.0/24 | CityNet Arizona LLC | Phoenix (Encanto) |
256 |
| 104.167.172.0/22 | Boingo MDU LLC | Tempe |
1,024 |
| 104.167.176.0/22 | Boingo MDU LLC | Tempe |
1,024 |
| 104.255.120.0/24 | Enable Midstream Partners | Oklahoma City (Central Oklahoma City) |
256 |
| 104.255.122.0/24 | Enable Midstream Partners | Oklahoma City (Central Oklahoma City) |
256 |
| 104.255.142.0/24 | Ports America Shared Services | Chandler (Downtown) |
256 |
| 104.255.143.0/24 | Ports America Shared Services | Chandler (Downtown) |
256 |
| 104.36.162.0/24 | Qwest Communications Company, LLC | Greeley |
256 |
| 104.71.143.0/24 | Akamai Technologies | Fort Hood |
256 |
| 104.72.79.0/24 | CenturyLink Communications, LLC | New York |
256 |
| 104.73.160.0/24 | CenturyLink Communications, LLC | Los Angeles |
256 |
| 104.73.163.0/24 | CenturyLink Communications, LLC | New York |
256 |
IPv6 addresses - showing the first 20 of 465 networks
| Network | Location | /64 Prefixes | |
|---|---|---|---|
| 2001:428:1000::/47 | CenturyLink Communications | Chicago (Loop) |
217 |
| 2001:428:1002::/48 | CenturyLink Communications | Chicago (Loop) |
216 |
| 2001:428:1004::/46 | CenturyLink Communications | Boston (Downtown Crossing) |
218 |
| 2001:428:1008::/45 | CenturyLink Communications | Chicago (Loop) |
219 |
| 2001:428:1010::/44 | CenturyLink Communications | Chicago (Loop) |
220 |
| 2001:428:1020::/43 | CenturyLink Communications | Chicago (Loop) |
221 |
| 2001:428:1040::/42 | CenturyLink Communications | Chicago (Loop) |
222 |
| 2001:428:1080::/41 | CenturyLink Communications | Chicago (Loop) |
223 |
| 2001:428:1100::/40 | CenturyLink Communications | Chicago (Loop) |
224 |
| 2001:428:1200::/39 | CenturyLink Communications | Chicago (Loop) |
225 |
| 2001:428:1400::/38 | CenturyLink Communications | Chicago (Loop) |
226 |
| 2001:428:1800::/47 | CenturyLink Communications | Chicago (Loop) |
217 |
| 2001:428:1802:1000::/52 | CenturyLink Communications | Chicago (Loop) |
212 |
| 2001:428:1802:100::/56 | CenturyLink Communications | Chicago (Loop) |
28 |
| 2001:428:1802:10::/60 | CenturyLink Communications | Chicago |
24 |
| 2001:428:1802:2000::/51 | CenturyLink Communications | Chicago (Loop) |
213 |
| 2001:428:1802:200::/55 | CenturyLink Communications | Chicago (Central) |
29 |
| 2001:428:1802:20::/59 | CenturyLink Communications | Chicago |
25 |
| 2001:428:1802:4000::/50 | CenturyLink Communications | Chicago (Loop) |
214 |
| 2001:428:1802:400::/54 | CenturyLink Communications | Chicago (Loop) |
210 |
