AS22561 CENTURYLINK-LEGACY-LIGHTCORE - CenturyLink Communications, LLC
🇺🇸ARINassigned
Announced Prefixes (BGP)
336total
336 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)38,912
Announced (BGP)1.5M
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)0
Announced Prefixes
(BGP)336|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 |
1-10 of 336
1 / 34
Allocated Prefixes
(RIR)5Prefix | Country | RIR | Status |
|---|---|---|---|
| 66.211.32.0/19 | 🇺🇸 US | ARIN | allocated |
| 173.248.64.0/18 | 🇺🇸 US | ARIN | allocated |
| 204.9.120.0/21 | 🇺🇸 US | ARIN | allocated |
| 206.51.64.0/19 | 🇺🇸 US | ARIN | allocated |
| 208.110.240.0/20 | 🇺🇸 US | ARIN | allocated |
All 336 announced prefixes of AS22561 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS22561 hands its own prefixes to: transit providers, or peers at an exchange.
- AS209CenturyLink Communications336
Downstreams (13)
Networks whose own prefixes AS22561 passes on: usually its customers.
- AS2379CenturyLink Communications106
- AS5778CenturyLink Communications98
- AS11398CenturyLink Communications64
- AS6222CenturyLink Communications37
- AS23126CenturyLink Communications18
- AS16835CenturyLink Communications16
- AS14905CenturyLink Communications10
- AS4282CenturyLink Communications4
- AS13787CenturyLink Communications4
- AS4283CenturyLink Communications3
- AS4284CenturyLink Communications3
- AS22186CenturyLink Communications3
- AS11211NCIC Operator Services1
Transfer History
Registry transfers of AS22561 between organisations.
- AS22561M&A ·
- AS22561M&A ·
ASPA
No ASPA
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS22561 should publish an ASPA object
- IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/22561Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/22561" | jq