AS594

AS594 is a legacy autonomous system number registered under ARIN to Level 3 Parent, LLC, an indirect subsidiary within the Lumen Technologies, Inc. corporate family (NYSE: LUMN). The ARIN handle carries a "CENTURYLINK-LEGACY-LVLT-594" designation, a naming remnant of Level 3's former LVLT ticker heritage from before its 2017 acquisition by CenturyLink (later rebranded Lumen). The registration itself dates back to 2002-06-05 per ARIN's autnum-level RDAP record, making this one of the older numbered assignments in the Level 3/Lumen ASN portfolio. Despite the active registry entry, AS594 carries no live routing footprint today: every routing source consulted (RIPEstat, CAIDA AS Rank, bgp.he.net, bgp.tools) independently confirms zero announced IPv4 and IPv6 prefixes, zero visible peers, and zero upstreams or downstreams, with a CAIDA AS rank of 79,459 — a value near the bottom of the global ranking that reflects total routing inactivity. RIPEstat's historical announcement window runs from 2002-05-09 to a last-seen date of 2014-06-04, and bgp.he.net independently reports the ASN as absent from the global table since 2015-08-01 — the roughly one-year gap between these two endpoints is a minor, unreconciled discrepancy between third-party observation sources rather than a registry fact. Lumen's live Tier-1 backbone activity, settlement-free peering program, and NANOG/BGP incident history all belong to the actively-routed sibling ASN AS3356, not to this dormant legacy number. No public abuse signal specific to AS594 was located as of 2026-07-17.

Operator

Level 3 Parent, LLC (RIR registrant handle LPL-141), an indirect subsidiary of Lumen Technologies, Inc. [Confirmed] — https://rdap.arin.net/registry/autnum/594

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/594

Allocated

2002-06-05 (ARIN RDAP autnum TOP-LEVEL registration event — a first-party RIR fact, distinct from nested entity/org-handle dates such as 2018-02-06, 2003-01-28, 2021-01-14, 2024-06-17 which belong to individual contact records, not the ASN itself); last changed 2019-12-04 [Confirmed, corroborated by three independent angles] — https://rdap.arin.net/registry/autnum/594, https://bgp.tools/as/594

Org status

RDAP registration status is active/valid at ARIN; registrant Level 3 Parent, LLC is an active, in-business subsidiary of publicly traded Lumen Technologies, Inc. and co-files SEC reports [Confirmed] — https://rdap.arin.net/registry/autnum/594, https://www.sec.gov/Archives/edgar/data/794323/000079432323000010/lumn-20230630.htm

Contacts

abuse@aup.lumen.com; ipadmin@lumen.com / ipadmin@centurylink.com; HQ 100 CenturyLink Drive, Monroe, LA 71203; admin/technical POC 1025 Eldorado Blvd., Broomfield, CO 80021 [Confirmed] — https://rdap.arin.net/registry/autnum/594

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-17 across CleanTalk (0% spam rate), Spamhaus DROP/ASN-DROP resources, AbuseIPDB, abuse.ch URLhaus, and NANOG/seclists archives

Network & routing

Network type

legacy/dormant ASN held by the Level 3/Lumen family; not in the global routing table today; distinct from Lumen's actively-routed Tier-1 backbone ASN AS3356 [Confirmed] — https://bgp.tools/as/594, https://bgp.he.net/AS594

Size

dormant — 0 IPv4 prefixes / 0 IPv4 address estimate, 0 IPv6 prefixes; customer cone = singleton (1 ASN, itself; 0 prefixes; 0 addresses) [Confirmed] — https://stat.ripe.net/AS594, CAIDA ASRank data (via fetch-canonical.mjs)

Routing/peering

not announced; no upstreams or peers currently visible in any source; historical peers (pre-~2015) included AS19259 (Todito.com S.A. de C.V.) and AS17072 (Total Play Telecomunicaciones, S.A.P.I. DE C.V.) [Confirmed] — https://bgp.he.net/AS594, https://bgp.tools/as/594

Peering policy

no AS594-specific policy exists (consistent with an unrouted ASN); Lumen's corporate-wide Settlement-Free Peering Policy (peering@lumen.com) governs the actively-routed sibling network but cannot be confirmed to apply to AS594 itself

[Likely] — https://www.lumen.com/en-us/about/legal/peering-policy.html

RPKI

not assessable for current routing — AS594 announces no prefixes, so there are no ROAs to validate; an RPKIR-ARIN routing-role entity (contact rpki-roa@lumen.com, registered 2024-06-17) exists on the RDAP record for ROA-creation purposes but does not confirm any live ROA

[Unknown] — https://rdap.arin.net/registry/autnum/594

Notable usage

none found specific to AS594 — no hosted domains, announced prefixes, or peering/transit relationships are attributable to this ASN; Lumen's Tier-1 backbone activity, major peering relationships, and 2017 BGP route-leak incident all belong to sibling ASN AS3356

[Confirmed] — https://ipinfo.io/AS594, https://bgp.tools/as/594

Related ASNs

AS3356 (Lumen's actively-routed Tier-1 backbone, formerly marketed as Level 3/CenturyLink transit) [Confirmed] — https://bgp.tools/as/594

Analyst note

A WebSearch summarization pass in one research angle produced a hallucinated "NASA" attribution for AS594's owner; this is contradicted by direct RDAP and ipinfo.io data (Level 3 Parent, LLC) and is not propagated into this record.