Routing security
AS209 CENTURYLINK-US-LEGACY-QWEST
Residential ARIN
Announcements
What this network originates
Every prefix observed with AS209 as its origin, checked against RPKI and the IRR. Problems sort first.
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS209 may originate these prefixes, up to the maximum length shown.
ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.
RPKI · ASPA
Declared transit providers
No ASPA record This network has not published an ASPA object. ASPA lets a network sign the list of its transit providers, so routers can reject paths that route through anyone else (route leaks). Only a few thousand networks publish one so far, so its absence is normal.
IRR
Registered route objects
Route objects naming AS209 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.
| Prefix | Source | Description | Maintainer | Changed | Routing |
|---|---|---|---|---|---|
| 45.42.4.0/22 | ARIN | ComElec Internet Services, Inc | MNT-CS-861 | 2015-03-04 | Not announced |
| 63.145.75.72/29 | RADB | Customer assigned | MAINT-AS15695 | 2023-11-13 | Not announced |
| 63.233.196.0/24 | ARIN | University Physicians Inc (dba CU Medicine) via Lumen | MNT-UP-276 | 2026-04-13 | Not announced |
| 66.230.240.0/21 | ARIN | ComElec Internet Services, Inc | MNT-CS-861 | 2015-03-13 | Not announced |
| 67.130.32.0/24 | RADB | RR-RC-Revlon Inc. | MAINT-RR | 2023-11-13 | Not announced |
| 67.131.109.0/24 | ARIN | 4321 109th Avenue NE | MNT-IC-201 | 2023-01-24 | Not announced |
| 75.169.47.0/24 | RADB | Proxy-registered route object for Qwest Communications Company, LLC via Lumos Networks. | MAINT-AS7795 | 2023-11-13 | Not announced |
| 146.174.236.0/24 | NTTCOM | Quantum Amcorp | MAINT-AS9534 | 2014-01-21 | Not announced |
| 149.97.16.0/24 | ALTDB | Proxy registration to prevent harm from ARIN-NONAUTH shutdown | MAINT-AS7034 | 2022-04-04 | Not announced |
| 161.195.129.0/24 | ARIN | Aramark US Downers Grove | MNT-ARAMAR-2-Z | 2023-10-23 | Not announced |
| 161.203.23.0/24 | ARIN | U.S. Government Accountability Office | MNT-UGAO | 2025-08-04 | Not announced |
| 161.203.24.0/24 | ARIN | U.S. Government Accountability Office | MNT-UGAO | 2025-08-04 | Not announced |
| 161.203.26.0/24 | ARIN | U.S. Government Accountability Office | MNT-UGAO | 2025-08-04 | Not announced |
| 192.88.205.0/24 | ARIN | The Root Group, Inc. | MNT-THEROO-1 | 2026-06-22 | Not announced |
| 199.30.116.0/24 | ARIN | New Prime Inc. | MNT-PRIME-60 | 2020-06-23 | Not announced |
| 199.30.117.0/24 | ARIN | New Prime Inc. | MNT-PRIME-60 | 2024-12-12 | Not announced |
| 199.30.118.0/24 | ARIN | New Prime Inc. | MNT-PRIME-60 | 2020-06-23 | Not announced |
| 199.30.119.0/24 | ARIN | New Prime Inc. | MNT-PRIME-60 | 2020-06-23 | Not announced |
| 199.38.8.0/21 | RADB | Lumen | MAINT-AS40116 | 2024-09-10 | Not announced |
| 199.191.64.0/24 | ARIN | Aramark US Downers Grove | MNT-ARAMAR-2 | 2023-08-15 | Not announced |
| 199.191.65.0/24 | ARIN | Aramark US Downers Grove | MNT-ARAMAR-2 | 2023-08-15 | Not announced |
| 206.130.94.0/23 | ARIN | ComElec Internet Services, Inc | MNT-CS-861 | 2015-07-21 | Not announced |
| 208.132.0.0/18 | ARIN | CenturyLink Communications, LLC | MNT-CCL-534 | 2025-03-10 | Not announced |
| 208.132.64.0/19 | ARIN | CenturyLink Communications, LLC | MNT-CCL-534 | 2025-03-10 | Not announced |
| 209.26.153.0/24 | ARIN | City of Saint Cloud | MNT-CSC-540 | 2024-08-26 | Not announced |
| 209.44.0.0/18 | ARIN | CenturyLink Communications, LLC | MNT-CCL-534 | 2025-03-10 | Not announced |
| 209.102.0.0/17 | ARIN | CenturyLink Communications, LLC | MNT-CCL-534 | 2025-03-10 | Not announced |
| 209.225.64.0/19 | ARIN | CenturyLink Communications, LLC | MNT-CCL-534 | 2025-03-11 | Not announced |
| 216.19.128.0/19 | ARIN | CenturyLink Communications, LLC | MNT-CCL-534 | 2025-03-12 | Not announced |
| 216.19.160.0/20 | ARIN | CenturyLink Communications, LLC | MNT-CCL-534 | 2025-03-12 | Not announced |
| 216.182.64.0/20 | ARIN | CenturyLink Communications, LLC | MNT-CCL-534 | 2025-03-10 | Not announced |
| 216.219.96.0/20 | ARIN | CenturyLink Communications, LLC | MNT-CCL-534 | 2025-03-10 | Not announced |
| 149.64.224.0/24 | ARIN | SAIC | MNT-SAIC-59 | 2024-11-14 | Announced |
| 161.203.14.0/23 | ARIN | U.S. Government Accountability Office | MNT-UGAO | 2025-08-04 | Announced |
| 161.203.16.0/23 | ARIN | U.S. Government Accountability Office | MNT-UGAO | 2025-08-04 | Announced |
| 161.203.18.0/23 | ARIN | U.S. Government Accountability Office | MNT-UGAO | 2025-08-04 | Announced |
| 161.203.22.0/23 | ARIN | U.S. Government Accountability Office | MNT-UGAO | 2025-08-04 | Announced |
| 161.203.24.0/23 | ARIN | U.S. Government Accountability Office | MNT-UGAO | 2025-08-04 | Announced |
| 161.203.26.0/23 | ARIN | U.S. Government Accountability Office | MNT-UGAO | 2025-08-04 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS209 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-14230-UPSTREAM | RADB | Lists AS209 as a direct member |
AS-398022-ALL | ARIN | Lists AS209 as a direct member |
AS-40300-ISPS | ARIN | Lists AS209 as a direct member |
AS-40300-IX-CUSTOMERS | ARIN | Lists AS209 as a direct member |
AS-AS33274-TRANSIT-PEERS | ARIN | Lists AS209 as a direct member |
AS-AS394306-TRANSIT-PEERS | ARIN | Lists AS209 as a direct member |
AS-AS394307-TRANSIT-PEERS | ARIN | Lists AS209 as a direct member |
AS-ASAVIE | ARIN | Lists AS209 as a direct member |
AS-CITYO-33 | ARIN | Lists AS209 as a direct member |
AS-CLGW | ARIN | Lists AS209 as a direct member |
AS-COMPUTEARIZONA | ALTDB | Lists AS209 as a direct member |
AS-COMPUTEAZ | ALTDB | Lists AS209 as a direct member |
AS-CTBC-CUSTOMERS64 | RADB | Lists AS209 as a direct member |
AS-CUSTOMERS-SCDI-3 | ARIN | Lists AS209 as a direct member |
AS-EBAY-TRANSIT | RADB | Lists AS209 as a direct member |
AS-H5DATA-AS-SETATL01 | ARIN | Lists AS209 as a direct member |
AS-HKTPEER | APNIC | Lists AS209 as a direct member |
AS-ORMAT | RIPE | Lists AS209 as a direct member |
AS-SET-NGENA | RIPE | Lists AS209 as a direct member |
AS-STRATUS-TRANSIT | RADB | Lists AS209 as a direct member |
AS-VES-DS | ARIN | Lists AS209 as a direct member |
AS-XO-P | ARIN | Lists AS209 as a direct member |
AS10886:AS-ISP-PROV | RADB | Lists AS209 as a direct member |
AS13765:AS-UPSTREAM | ARIN | Lists AS209 as a direct member |
AS16654:AS-PEERS | ARIN | Lists AS209 as a direct member |
AS198949:AS-SD | RADB | Lists AS209 as a direct member |
AS199746:AS-BLACKLIST | RIPE | Lists AS209 as a direct member |
AS204464:AS-BLACKLIST | RIPE | Lists AS209 as a direct member |
AS29765:AS-BLENDED | ARIN | Lists AS209 as a direct member |
AS395290:AS-PEERS | ARIN | Lists AS209 as a direct member |
AS40300:AS-ISPS | ARIN | Lists AS209 as a direct member |
AS9534:AS-CUSTOMERS | APNIC | Lists AS209 as a direct member |
RPKI from rpki-client, validated 2026-10-11 12:23 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-11. Cross-check on bgp.he.net.