AS579

AS579 is registered under ARIN to Netcierge, LLC, a private ISP-consulting firm headquartered in McLean, Virginia, that describes itself on its own site as founded in 2023 to advise under-served communities on planning, building, and operating fiber ISP infrastructure — outside plant, deployment, operations, and service delivery — rather than as an operating carrier itself. The ASN's routing history tells a different story: per RIPEstat and bgp.he.net, AS579 was first seen announcing 38.107.241.0/24 in 2009, later originated 8.18.109.0/24 (flagged as a bogon/invalid range by bgp.he.net) with a single historical BGP peer (AS3356, Level 3 Parent/Lumen), and has not been visible in the global routing table since 2016-12-11 — years before its 2023 ARIN registration event to Netcierge. Today the ASN is fully dormant: zero announced IPv4/IPv6 prefixes, zero RIS peers, zero CAIDA-observed degree, and a singleton customer cone. No PeeringDB net record exists for AS579 (API query returned 404), and no peering policy is published anywhere. No notable public abuse signal was found across Spamhaus DROP/SBL, open ASN blocklists, CleanTalk, abuse.ch feeds, or NANOG archives as of 2026-07-11.

Operator

Netcierge, LLC (ISP-consulting firm, McLean, VA; founded 2023) [Confirmed] — https://rdap.arin.net/registry/autnum/579, https://www.netcierge.net/

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/579

Allocated

2023-05-03 (ARIN RDAP autnum top-level registration event, timestamp 2023-05-03T15:12:40Z) [Confirmed — corroborated independently by both A2 and A3, which each fetched and parsed the autnum's own events[], excluding the earlier nested org/POC registration dates] — https://rdap.arin.net/registry/autnum/579

Org status

Active per ARIN RDAP; primary/abuse/admin/tech contact Marcellus Nixon (individual contact details not republished here); NOC hours 7:00 AM–11:00 PM EST [Confirmed] — https://rdap.arin.net/registry/autnum/579

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-11 — checked Spamhaus DROP/ASN-DROP/SBL, open ASN blocklist aggregators (bad-asn-list, ASN-BlackList), CleanTalk per-ASN stats, abuse.ch (Feodo Tracker, SSLBL), and NANOG archives

Network & routing

Network type

self-described ISP-consultancy (advisory, not an operating network); does not obviously match AS579's own dormant/bogon routing history, so this is inferential rather than a direct "this ASN is used for X" statement [Likely] — https://www.netcierge.net/

Size

dormant — 0 announced IPv4 prefixes, 0 IPv6 prefixes, customer cone = singleton (1 ASN, 0 prefixes, 0 addresses) [Confirmed] — https://stat.ripe.net/AS579, https://asrank.caida.org/asns/579

Routing/peering

not currently announced; 0/325 v4 and 0/322 v6 RIS peers seeing it; CAIDA degree total 0 (customer/peer/provider all 0); one historical peer, AS3356 (Level 3 Parent, LLC / Lumen), no longer current [Confirmed] — https://bgp.he.net/AS579, https://asrank.caida.org/asns/579

Peering policy

Unknown/unpublished — no PeeringDB net record for AS579 (404) and no peering information on the operator's site [Unknown] — https://www.peeringdb.com/api/net?asn=579, https://www.netcierge.net/network-operations

RPKI

not assessable — no currently announced prefixes to validate; RIPEstat rpki-validation was skipped for lack of a prefix argument [Confirmed] — https://stat.ripe.net/AS579

Notable usage

historically announced 38.107.241.0/24 (first seen 2009-07-23) and later 8.18.109.0/24 (a bogon range, last seen 2016-12-11); routing activity ceased years before the 2023 ARIN registration to Netcierge, suggesting reassignment of a previously-active ASN to a new registrant

[Likely] — https://stat.ripe.net/AS579, https://bgp.he.net/AS579

Analyst note

an apparent identity mismatch between a dormant, bogon-tainted legacy ASN and its current registrant, a 2023-founded ISP-consulting firm that does not itself operate networks — flagged for the checker rather than resolved with certainty.