AS362

AS362 is a legacy autonomous system number registered under ARIN to the United States Department of Defense, administered operationally by the DoD Network Information Center (DoD NIC) via the Defense Information Systems Agency (DISA) out of DISA-Columbus in Whitehall, Ohio. It is not an individually registered ASN: ARIN publishes one block-level autnum record, DNIC-ASBLK-00306-00371 (handle AS306, startAutnum 306, endAutnum 371), covering the contiguous DoD range AS306–AS371, of which AS362 is a member. That block record carries a top-level ARIN registration event of 1989-06-30 and was last changed 2025-09-12, and its registrant is the entity USDDD (U.S. Department of Defense). Two nested contact entities — MIL-HSTMST-ARIN (NOC/technical/abuse, registered 1993-05-26) and REGIS10-ARIN (administrative/technical, registered 2009-06-24) — carry their own later point-of-contact dates; these are contact-record dates and are NOT the ASN's allocation date. On the routing side AS362 is a live but small stub network: RIPEstat and CAIDA show it announcing roughly 59 IPv4 prefixes (about 131,072 addresses, a /16 equivalent) plus one IPv6 prefix, with a customer cone of a single ASN (itself), CAIDA AS rank ~13,087, and an asnDegree of one upstream provider, zero peers, and zero customers — a single-homed stub. Its sole observed BGP neighbour is AS306, another DoD-registered ASN. AS362 announces space in the 55.0.0.0/8 range, which bgp.he.net flags against historical bogon/DoD-special-use filters; RDAP and RIPEstat confirm this is a legitimate active DoD announcement, not a hijack. DoD NIC (via DISA) is also the IANA-designated operator of G.root-servers.net, one of the 13 DNS root servers. No notable public abuse signal was found as of 2026-07-01 — no Spamhaus ASN-DROP listing, no AS362-specific NANOG thread (the well-known 2021 DoD-BGP NANOG discussion concerned the separate AS8003, not AS362), and near-zero fraud scores from third-party trackers — consistent with a clean, low-visibility government stub network.

Operator

United States Department of Defense (DoD); operationally the DoD Network Information Center (DoD NIC) administered by DISA at DISA-Columbus, 300 North James Road, Whitehall, OH 43213; ARIN org handle USDDD [Confirmed] — ARIN RDAP (https://rdap.arin.net/registry/autnum/362)

Country / RIR

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

Allocated

1989-06-30 (ARIN registry date — first-party RIR registration event from the block autnum top-level events[], NOT an IEEE date; IEEE publishes no ASN registration dates); last changed 2025-09-12 [Confirmed] — ARIN RDAP autnum top-level events (https://rdap.arin.net/registry/autnum/362)

Block context

AS362 is a member of the block-level autnum record DNIC-ASBLK-00306-00371 (handle AS306; startAutnum 306, endAutnum 371) — ARIN publishes one record for the whole AS306–AS371 DoD range, so the 1989-06-30 registration applies to the block, not a date unique to AS362 alone [Confirmed] — ARIN RDAP

Org status

active. AS362 sits within the active block record DNIC-ASBLK-00306-00371 (status active), registrant USDDD (U.S. Department of Defense) [Confirmed] — ARIN RDAP

Contacts

MIL-HSTMST-ARIN (NOC/technical/abuse) disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil; REGIS10-ARIN (administrative/technical) disa.columbus.ns.mbx.arin-registrations@mail.mil; both DISA-Columbus mailboxes [Confirmed] — ARIN RDAP, RIPEstat abuse-contact-finder

Website

nic.mil (historical/canonical DoD NIC site) and disa.mil (DISA parent); both unreachable during this research session (2026-07-01), so live page content is Unknown [Unknown for live content] — RDAP org attribution; no live fetch

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-01 — not in Spamhaus ASN-DROP (checked directly, no AS362 match), no AS362-specific NANOG thread (the 2021 DoD-IPv4 NANOG discussion was about the separate AS8003/GRS-DoD, not AS362), near-zero fraud score from Scamalytics; this reflects absence of evidence in sources checked, not a certified clean bill of health

Network & routing

Network type

US federal government / military network operator (direct ARIN allocation to a US government entity), not a commercial ISP; single-homed stub AS [Confirmed] — ARIN RDAP, CAIDA ASRank (https://api.asrank.caida.org/v2/restful/asns/362)

Size

~59 IPv4 prefixes / ~131,072 IPv4 addresses (a /16 equivalent) and 1 IPv6 prefix; customer cone = 1 ASN (itself), 59 prefixes, 131,072 addresses [Confirmed] — RIPEstat routing-status, CAIDA ASRank, bgp.he.net (https://bgp.he.net/AS362); (ipinfo/ipqualityscore report ~144,121 IPv4, a slightly different snapshot)

Routing/peering

single-homed stub — CAIDA asnDegree total 1 (customer 0, peer 0, provider 1); RIPEstat observed_neighbours 1; sole observed BGP neighbour is AS306 (also DoD) [Confirmed for stub/neighbour]; CAIDA names one provider relationship but does not identify the ASN in the payload

[Likely for provider identity] — CAIDA ASRank, RIPEstat, bgp.he.net

Peering policy

none published — no public peering-policy page found for DoD NIC / AS362 (expected for DoD/military infrastructure); recorded as a sourced null [Unknown] — WebSearch/site fetch, no result

RPKI

not assessed — RIPEstat rpki-validation was skipped in the canonical fetch (requires a specific --prefix parameter; it is a per-prefix check, not evaluable at the ASN level without enumerating all announced prefixes) [Unknown] — RIPEstat rpki-validation (skipped: "no --prefix supplied")

Notable usage

DoD NIC (via DISA) operates G.root-servers.net, one of the 13 IANA-designated DNS root servers, listed by IANA as operator "US Department of Defense (NIC)" [Confirmed] — IANA root servers (https://www.iana.org/domains/root/servers)

Related ASNs

AS306 (DoD; sole observed BGP neighbour of AS362) and the broader DoD block AS306–AS371 [Confirmed] — ARIN RDAP, bgp.he.net

Bogon note

AS362 announces space in 55.0.0.0/8 (IANA-reserved/DoD-special-use, historically bogon-filtered on some networks); bgp.he.net flags it, but RDAP/RIPEstat confirm active legitimate DoD announcement, not a hijack [Confirmed] — bgp.he.net

Analyst note

Encountered as a legacy DoD block-member ASN. The RDAP query for AS362 correctly returns the block autnum DNIC-ASBLK-00306-00371 (handle AS306) — this is normal ARIN behavior for a contiguous DoD allocation, not a lookup error. Allocation date read strictly from top-level events[]; nested POC-entity dates (1993, 2009) were treated as decoys and excluded.