AS190

AS190 is a low-numbered, early-registered Autonomous System Number held under ARIN by the Navy Network Information Center (NNIC), a U.S. Department of Defense / U.S. Navy registrant headquartered at 2465 Guadalcanal Road, Building 1265, Virginia Beach, VA 23459. The ARIN RDAP record carries an AS-level registration event of 1988-05-17 — making it one of the earliest ASNs on the registry — and a top-level last-changed event of 2011-07-05; status is active. (A separate contact-record date of 2025-03-13 surfaces on some third-party WHOIS mirrors and reflects a downstream POC/org update, not the autnum's own top-level event.) In practice AS190 functions as a small government stub network for Navy infrastructure rather than a transit provider: it announces five IPv4 /24 prefixes (192.86.77.0/24, 192.111.117.0/24, 198.97.138.0/24, 199.208.157.0/24, 199.211.219.0/24 — 1,280 addresses), no IPv6, and has no IXP presence and no downstream customers. Routing topology is degenerate — RIPEstat and CAIDA agree on a single upstream provider, zero peers, and zero customers — with the upstream identified by multiple third-party BGP sources as AS27064 (DoD Network Information Center). The ASN is broadly visible (326 of 327 RIS peers, ~99.7%). Administrative and abuse handling routes through DISA Columbus (Defense Information Systems Agency), the ARIN registration steward. No notable public abuse signal was found as of 2026-06-19 — not in Spamhaus DROP/SBL, AbuseIPDB, FireHOL feeds, or NANOG archives; the broader NNIC organization has appeared in news as a *target* of nation-state intrusions, but none of that activity originates from AS190 itself.

Operator

Navy Network Information Center (NNIC) (ARIN registrant handle NNICN-1; 2465 Guadalcanal Road, BLDG 1265, Virginia Beach, VA 23459, US) [Confirmed] — ARIN RDAP (https://rdap.arin.net/registry/autnum/190)

Country / RIR

US, ARIN [Confirmed] — RIPEstat abuse-contact-finder (authoritative_rir: arin), ARIN RDAP

Allocated

ARIN AS-level registration event 1988-05-17 (RIR registry date, NOT an IEEE date — IEEE publishes no ASN registration dates); ASN top-level last changed 2011-07-05 [Confirmed] — ARIN RDAP autnum top-level events (https://rdap.arin.net/registry/autnum/190)

Org status

U.S. federal government / military — part of the Department of Defense (Navy); NNIC operates under DISA Columbus stewardship for ARIN registration purposes [Confirmed] — ARIN RDAP, networksdb.io (https://networksdb.io/ip-addresses-of/navy-network-information-center-nnic)

Contacts

abuse/registration — disa.columbus.ns.mbx.arin-registrations@mail.mil, +1-844-347-2457; admin contact REGIS10-ARIN (DISA-Columbus, 300 North James Road, Whitehall, OH 43213) [Confirmed] — ARIN RDAP, RIPEstat abuse-contact-finder

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-06-19; not in Spamhaus DROP/SBL, AbuseIPDB, FireHOL aggregated feeds, or NANOG archives; several feed portals (AbuseIPDB, Scamalytics, CleanTalk, Spamhaus check) blocked automated fetch, so absence is web-search-indexed rather than API-confirmed. The broader NNIC org is a documented target of nation-state cyber operations, but none is attributed to AS190 as a source

Network & routing

Network type

government/military stub (single-homed Navy/DoD enterprise network; not a transit provider; no IX presence) [Confirmed] — bgp.he.net (https://bgp.he.net/AS190), ipgeolocation.io (https://ipgeolocation.io/browse/asn/AS190), ipinfo.io (https://ipinfo.io/AS190)

Size

small and fixed — 5 IPv4 /24 prefixes (1,280 addresses), 0 IPv6; customer cone = 1 ASN (itself), 5 prefixes, 1,280 addresses [Confirmed] — RIPEstat routing-status / announced-prefixes, CAIDA AS Rank (2026-06)

Routing/peering

announced and broadly visible — 326/327 RIS peers see it (v4), 0/323 (v6); CAIDA degree total 1 (customer 0, peer 0, provider 1); single upstream, observed_neighbours 1 [Confirmed] — RIPEstat routing-status (https://stat.ripe.net/data/routing-status/data.json?resource=190), CAIDA (https://api.caida.org/as-rank/v1/asn/190). Upstream identified as AS27064 (DoD Network Information Center)

[Likely] — bgp.he.net, ipgeolocation.io, ipinfo.io (CAIDA confirms 1 provider but does not name it)

RPKI

not assessable from collected data — per-prefix RPKI validation was not run (no --prefix supplied to RIPEstat) [Unknown] — RIPEstat rpki-validation (skipped)

Notable usage

NNIC manages IP and ASN resources for the U.S. Navy; AS190 is a legacy stub assignment (registered May 1988, among the earliest ASNs) carrying only internal Navy/DoD infrastructure. No commercial or transit services. First observed in RIS routing 2004-12-21 (199.211.219.0/24); last seen 2026-06-19 (192.111.117.0/24)

[Confirmed] — RIPEstat routing-status, networksdb.io (https://networksdb.io/ip-addresses-of/navy-network-information-center-nnic)

Geo footprint

US (CAIDA geo 38.8436, -76.4421); IANA block 1-1876 "Assigned by ARIN" (16-bit AS Numbers Registry) [Confirmed] — CAIDA, RIPEstat as-overview

Related ASNs

AS27064 (DoD Network Information Center — sole observed upstream) [Likely] — bgp.he.net, ipinfo.io

Announced prefixes

192.86.77.0/24, 192.111.117.0/24, 198.97.138.0/24, 199.208.157.0/24, 199.211.219.0/24 [Confirmed] — RIPEstat announced-prefixes (https://stat.ripe.net/data/announced-prefixes/data.json?resource=190), bgp.he.net (https://bgp.he.net/AS190)

Analyst note

Low-numbered legacy ASN whose WHOIS resolves to the Navy Network Information Center; a small government-oriented stub. The 2025-03-13 "last changed" seen on some mirrors is a contact/org-record update, not the autnum top-level event (1988-05-17 registration / 2011-07-05 last changed are the autnum's own events). CAIDA cliqueMember=true is anomalous for a small stub and likely reflects CAIDA classification methodology, not actual clique membership; upstream name (AS27064) is third-party-sourced since CAIDA does not name the single provider.