AS555

AS555 is a low-numbered legacy autonomous system registered under ARIN, with the WHOIS/RDAP org-of-record listed as Velocity Technology Solutions, Inc. (org handle VTS-101, address 400 Minuteman Rd, Andover, MA). ARIN's autnum record carries a top-level registration event dated 1989-11-30, making this one of the earliest ASN allocations still in the registry, and it was last updated 2018-05-04. The ASN's corporate history is more tangled than its ARIN record shows: Velocity Technology Solutions (managed cloud/ERP hosting) was acquired by Navisite on 2021-01-06, and Navisite was itself acquired by Accenture in a deal completed 2024-01-30 — yet ARIN has never renamed the org record, so the WHOIS holder name is now a step behind the actual operator. Operationally, AS555 has gone dormant: RIPEstat, CAIDA, and Hurricane Electric's bgp.he.net independently agree it has announced zero IPv4/IPv6 prefixes since bgp.he.net's last-seen date of 2024-11-13, down from a peak /16 (137.66.0.0/16) first observed in 2000. Its sole historical prefix at the point of going dark, 144.34.60.0/24, is flagged by bgp.he.net's automated tooling as a bogon route — a routing-hygiene artifact of a long-idle legacy assignment, not an abuse finding. No public abuse, hijack, or incident history was located for this ASN.

Operator (ARIN org-of-record)

Velocity Technology Solutions, Inc. (VTSII, org handle VTS-101, Andover, MA) [Confirmed] — https://rdap.arin.net/registry/autnum/555 ; corroborated by CAIDA asnName "VTSII" (https://api.asrank.caida.org/v2/restful/asns/555)

Country / RIR

US, ARIN [Confirmed] — RIPEstat abuse-contact-finder (authoritative_rir: arin), https://stat.ripe.net/data/abuse-contact-finder/data.json?resource=555

Allocated

1989-11-30 — ARIN RDAP autnum TOP-LEVEL registration event (first-party RIR fact; two entity-level decoy dates, ABUSE2671-ARIN 2010-05-26 and ODUNS-ARIN 2026-04-24, correctly excluded as POC-record updates, not the ASN's own allocation). Last changed 2018-05-04

[Confirmed] — https://rdap.arin.net/registry/autnum/555

Org status

active, per ARIN RDAP status field [Confirmed] — https://rdap.arin.net/registry/autnum/555

Website

ARIN org record has no website field; successor operator's site is https://www.navisite.com, though its /about/ page returned HTTP 403 to the fetch tool and could not be directly verified [Unknown/Likely] — https://rdap.arin.net/registry/autnum/555

Security/abuse context (NEUTRAL, DATED)

no entry found on Spamhaus ASN-DROP as of 2026-07-11 (partial-list check, not line-by-line); no AS555-specific NANOG thread located; the only dated, sourced signal is bgp.he.net's bogon flag on its last announced prefix, read as routing-hygiene/dormancy, not confirmed malicious activity

Abuse contact

abuse@velocity-inc.com (authoritative RIR: ARIN)

Network & routing

Network type

not disclosed on PeeringDB (all traffic/ratio/network-type fields blank); business profile (managed cloud/ERP hosting) suggests an enterprise/hosting-customer ASN rather than a transit or access network [Unknown for PeeringDB fields; Likely for the enterprise-hosting inference] — https://www.peeringdb.com/net/41035

Size / routing status

NOT currently announced — 0 IPv4 and 0 IPv6 prefixes seen by any of 327/322 RIS peers; customer cone is a singleton (1 ASN, 0 prefixes, 0 addresses) [Confirmed] — https://stat.ripe.net/data/routing-status/data.json?resource=555 ; https://api.asrank.caida.org/v2/restful/asns/555

Historical routing window

first seen 2000-08-18 originating 137.66.0.0/16 (~65,536 addresses); last seen 2024-11-04 originating 144.34.60.0/24 (256 addresses); bgp.he.net independently confirms no visibility since 2024-11-13 and flags that final /24 as a bogon route

[Confirmed] — https://stat.ripe.net/data/routing-status/data.json?resource=555 ; https://bgp.he.net/AS555

Peering

no upstreams or current peers (CAIDA degree total 0); historically one observed IPv4 peer, AS55410 (Vodafone India Limited), now stale since the ASN is unannounced [Confirmed for zero current degree; Likely for historical peer being a genuine relationship] — https://api.asrank.caida.org/v2/restful/asns/555 ; https://bgp.he.net/AS555

Peering policy

not specified — PeeringDB net/41035 shows General Policy blank, no IXPs or facilities listed [Confirmed that the fields are blank; Unknown whether a real policy exists elsewhere] — https://www.peeringdb.com/net/41035

RPKI

not assessable — no prefixes currently announced, so no ROAs exist to validate; bgp.tools surfaces no RPKI status [Unknown] — https://bgp.tools/as/555

CAIDA AS rank

79,459; not a clique member; no IXP membership (ixp: null) [Confirmed] — https://api.asrank.caida.org/v2/restful/asns/555

Notable usage

none identified beyond its own history — a very early (1989) ASN that has passed through Velocity Technology Solutions -> Navisite (2021) -> Accenture (2024) while retaining the same number; no news coverage or incident write-ups reference it [Likely, absence of coverage is not proof of no usage] — https://rdap.arin.net/registry/autnum/555 ; https://www.peeringdb.com/net/41035

Related ASNs

none confidently identified in this research pass [Unknown]

ASN

AS555 [Confirmed] — https://rdap.arin.net/registry/autnum/555

Current de facto operator

Navisite, Part of Accenture — ARIN record not yet renamed to reflect the 2021 Navisite acquisition of Velocity Technology Solutions or Accenture's 2024 acquisition of Navisite [Likely, inferred from corporate-history sourcing, not a Navisite page naming AS555 directly] — https://www.prnewswire.com/news-releases/navisite-acquires-velocity-technology-solutions-301201549.html ; https://newsroom.accenture.com/news/2024/accenture-completes-acquisition-of-navisite-to-help-clients-modernize-and-reinvent-their-businesses-with-cloud