AS690

AS690 is a dormant, legacy autonomous system registered under ARIN to MCICS-690 — MCI Communications Services, LLC, doing business as Verizon Business, an indirect subsidiary of Verizon Communications Inc. — that announces zero IPv4 and zero IPv6 prefixes today and has not appeared in the global routing table since 2006.

Live ARIN RDAP confirms this attribution outright: the autnum's top-level registration event is dated 2025-11-04 (identical to its last-changed event), the registrant org handle is MCICS with fn/org "Verizon Business," and the RDAP autnum name is MCICS-690. RIPEstat's as-overview independently corroborates the same holder string, "MCICS-690 - Verizon Business." Nothing in either live source is ambiguous or pending further confirmation.

RIPEstat's routing history shows AS690 first announcing 152.176.254.0/23 on 2000-08-18 and last announcing 152.179.248.0/23 on 2006-02-15 — MCI/UUNET-style address space consistent with the current Verizon Business registrant. CAIDA ranks it 79,459th globally, and its customer cone is a singleton: 1 ASN (itself), 0 prefixes, 0 addresses, with 0 upstreams and 0 peers.

Some third-party trackers, including bgp.tools and ip2location, still label AS690 "Merit Network" — a holdover from 1995-era NANOG mailing-list archives when Merit Network Inc. used this ASN on the NSFNET backbone. That label appears nowhere in the live registry; it is a historical footnote confined to stale third-party databases and 1995 community archives, not a conflict within ARIN or RIPE's current records.

Contact records point squarely at Verizon Business infrastructure: abuse@verizon.com for abuse handling, plus administrative and technical points of contact in Ashburn, VA and Reston, VA, and a DNS-admin contact in Walnut Creek, CA. No first-party Verizon page documents AS690's specific operational role — Verizon Business's published peering policy names only its three flagship regional backbones, AS701, AS702, and AS703.

Operator

MCI Communications Services, LLC, d/b/a Verizon Business Services (ARIN RDAP org MCICS-690; indirect subsidiary of Verizon Communications Inc.) [Confirmed] — https://rdap.arin.net/registry/autnum/690

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/690

Allocated

2025-11-04 (ARIN RDAP autnum top-level "registration" event; identical "last changed" date) [Confirmed] — https://rdap.arin.net/registry/autnum/690. Historical footnote: 1995-era NANOG/RIPE community archives associate this ASN with Merit Network Inc.'s NSFNET-era use; that label survives only in stale third-party trackers (bgp.tools, ip2location) and is absent from the live registry

[Likely, historical] — https://archive.nanog.org/mailinglist/mailarchives/old_archive/1995-11/msg00173.html

Org status

active per ARIN RDAP; registrant org MCICS, HQ address 22001 Loudoun County Pkwy, Ashburn, VA [Confirmed] — https://rdap.arin.net/registry/autnum/690

Contacts

abuse@verizon.com; admin/technical POCs in Ashburn, VA and Reston, VA; DNS-admin contact (dnsadmin@verizon.com) in Walnut Creek, CA [Confirmed] — https://rdap.arin.net/registry/autnum/690

Security/abuse context

no notable public abuse signal found as of 2026-07-18; absent from Spamhaus ASN-DROP

Network & routing

Network type

commercial IP backbone under Verizon Business; not one of Verizon's three named flagship regional ASNs (AS701 Americas, AS702 Europe, AS703 Asia-Pacific) [Likely] — https://www.verizon.com/business/terms/peering/

Size

dormant — 0 IPv4 / 0 IPv6 prefixes announced; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — https://stat.ripe.net/AS690, https://asrank.caida.org/asns/690, https://bgp.he.net/AS690, https://bgp.tools/as/690

Routing/peering

NOT announced — 0 peers, 0 upstreams, 0 customers per CAIDA degree data; last announced 152.179.248.0/23 on 2006-02-15 [Confirmed] — https://stat.ripe.net/AS690, https://asrank.caida.org/asns/690

RPKI

not assessable — zero announced prefixes means no ROAs to validate [Unknown] — https://stat.ripe.net/AS690

Notable usage

first seen announcing 152.176.254.0/23 on 2000-08-18; MCI/UUNET-style address space consistent with the Verizon Business lineage [Confirmed] — https://stat.ripe.net/AS690. No first-party Verizon page documents AS690's specific operational role [Unknown]

Related ASNs

AS701, AS702, AS703 (Verizon Business's named regional backbone ASNs under the same settlement-free peering policy) [Likely] — https://www.verizon.com/business/terms/peering/

Analyst note

Live ARIN RDAP and RIPEstat both confirm AS690's current registrant as Verizon Business (MCICS-690), registration event 2025-11-04; the commonly-cited Merit Network association is a historical artifact confined to 1995-era NANOG/RIPE archives and stale third-party trackers, not a live-registry conflict.