AS3561 CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLC
🇺🇸ARINassigned
Announced Prefixes (BGP)
709total
707 IPv42 IPv6
IPv4 Addresses
Allocated (RIR)8.8M
Announced (BGP)7.5M
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)9.6×10²⁴
Announced Prefixes
(BGP)709|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | RIPE | 2026-10-11 | |
23.26.66.0/24MOAS | Valid | ARIN | 2026-10-11 |
23.26.136.0/24MOAS | Valid | ARIN | 2026-10-11 |
| Valid | ARIN | 2026-10-11 | |
| Valid | ARIN | 2026-10-11 | |
| Valid | ARIN | 2026-10-11 | |
| Valid | ARIN | 2026-10-11 | |
| Invalid | - | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 | |
| Valid | ARINOther IRR | 2026-10-11 |
1-10 of 709
1 / 71
Allocated Prefixes
(RIR)265Prefix | Country | RIR | Status |
|---|---|---|---|
| 5.157.164.0/22 | 🇷🇴 RO | RIPE | assigned |
| 62.216.64.0/21 | 🇺🇸 US | RIPE | assigned |
| 63.128.0.0/15 | 🇺🇸 US | ARIN | allocated |
| 63.136.0.0/18 | 🇺🇸 US | ARIN | allocated |
| 63.136.64.0/19 | 🇺🇸 US | ARIN | allocated |
| 63.136.96.0/20 | 🇺🇸 US | ARIN | allocated |
| 63.136.120.0/21 | 🇺🇸 US | ARIN | allocated |
| 63.136.128.0/17 | 🇺🇸 US | ARIN | allocated |
| 63.137.0.0/16 | 🇺🇸 US | ARIN | allocated |
| 64.14.0.0/16 | 🇺🇸 US | ARIN | allocated |
1-10 of 265
1 / 27
All 709 announced prefixes of AS3561 →
BGP Neighbours
(seen in AS paths)Upstreams (3)
Networks AS3561 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (41)
Networks whose own prefixes AS3561 passes on: usually its customers.
- AS6989Government Technology Services10
- AS21622PR Newswire8
- AS62827Thales DIS USA8
- AS14524SERCO NA6
- AS396167Blackhawk Network5
- AS19701Yodlee4
- AS40946Spireon4
- AS14109Sigma Aldrich Corporation3
- AS46263E Dialog3
- AS63427Computer Design & Integration3
- AS10959Bank Of America, National Association2
- AS22064Refinitiv US2
- AS29457OPTIONS Technology2
- AS32988ANALOG DEVICES Analog Devices2
- AS40026DICKS SPORTING GOODS2
- AS40695FHLBanks Office Of Finance2
- AS62224BullhornUK Bullhorn, International Limited2
- AS64212Advantage Sales & Marketing2
- AS7761Morningstar1
- AS13458DAVIDSON KEMPNER CAPITAL MANAGEMENT LP1
- AS13494Morningstar1
- AS14688GlobalView Software1
- AS15349Guggenheim Services1
- AS20391The Parking Spot1
- AS22283Sidley Austin LLP1
- AS23147Byline Bank1
- AS26158ULTIMATE SOFTWARE GROUP1
- AS33717Chunghwa Telecom Global1
- AS36539Peak6 Group1
- AS39965Radiant Global Logistics1
- AS40685Doculynx Operations1
- AS46269UKG Kronos Systems1
- AS46885Carlyle Investment Management L.L.C1
- AS53288STERICYCLE1
- AS53687DataComm Networks1
- AS54262CERTUSOFT1
- AS62520EMASON1
- AS201493NSCEMEA1 ALVARIA TECHNOLOGIES UK LIMITED1
- AS393697Hub International1
- AS393738Cameo Solutions1
- AS393888SQUARETRADE1
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 AS3561 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/3561Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/3561" | jq