AS770

AS770 is a dormant U.S. Department of Defense-registered autonomous system (registry name DNIC-AS-00770) that currently announces zero IPv4 and zero IPv6 prefixes in the global routing table — it is allocated and administratively active in ARIN's registry, but it is not live on the Internet today.

ARIN RDAP lists the registrant as the United States Department of Defense under org handle USDDD, with a top-level autnum registration event dated 1990-10-31 — independently corroborated by bgp.tools, which states the ASN was "registered on October 31, 1990." The RDAP record was last changed 2025-09-12.

Every routing source checked (bgp.he.net, bgp.tools, CAIDA AS Rank) agrees AS770 has no visible announcements: 0 IPv4 prefixes, 0 IPv6 prefixes, 0 peers, and 0 upstreams, with a singleton customer cone (itself, 0 prefixes, 0 addresses). Its CAIDA AS rank of 79,459 sits near the bottom of the global ranking, and no PeeringDB record exists for the ASN.

RPKI status cannot be assessed — an unrouted ASN originates no prefixes, so there are no ROAs to validate. The RDAP registrant contact places the ASN at 3990 E. Broad Street, Columbus, OH 43218, consistent with DISA-Columbus, the operational home of the DoD Network Information Center; the on-file abuse/admin contact is disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil.

AS770 sits numerically among a cluster of other DoD-administered ASNs (e.g. AS765, AS767, AS768, AS769), consistent with a large, largely dormant DoD ASN allocation block rather than a standalone commercial network, though ARIN RDAP for AS770 itself does not enumerate related ASNs, and no source confirming shared operational ownership beyond numeric adjacency was found as of 2026-07-31.

Operator

United States Department of Defense (DoD); ARIN org handle USDDD [Confirmed] — https://rdap.arin.net/registry/autnum/770, https://whois.arin.net/rest/org/USDDD

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/770

Allocated

1990-10-31 (ARIN RDAP autnum top-level registration event; corroborated by bgp.tools); last changed 2025-09-12 [Confirmed] — https://rdap.arin.net/registry/autnum/770, https://bgp.tools/as/770

Org status

active (per ARIN RDAP) [Confirmed] — https://rdap.arin.net/registry/autnum/770

Contacts

disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil; +1-844-347-2457 ext2; registrant address 3990 E. Broad Street, Columbus, OH 43218 (USDDD organisation entity) [Confirmed] — https://rdap.arin.net/registry/autnum/770

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-31 — not in Spamhaus ASN-DROP, general AbuseIPDB/GreyNoise search, or NANOG archives; no link found to the AS8003/Bitcanal DoD-space hijack case

Network & routing

Network type

US federal/military network allocation (DNIC-AS-00770, DoD Network Information Center block); non-commercial, currently unrouted [Likely] — https://rdap.arin.net/registry/autnum/770

Size

dormant — 0 IPv4 prefixes / 0 addresses and 0 IPv6 prefixes; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — https://bgp.he.net/AS770, https://bgp.tools/as/770

Routing/peering

NOT announced — 0 peers, 0 upstreams visible in any source; no PeeringDB listing (peeringdb.com/asn/770 returns 404) [Confirmed] — https://bgp.he.net/AS770, https://www.peeringdb.com/asn/770

RPKI

not assessable — AS770 announces no prefixes, so there are no ROAs to validate [Confirmed] — https://bgp.he.net/AS770

Notable usage

no public documentation ties AS770 to a named service as of 2026-07-31 (general web and registry search); administratively active in ARIN's registry but dark in the routing table. AS770 sits in the same DoD NIC numeric neighborhood as AS765, AS767, AS768, and AS769, though ARIN RDAP for AS770 itself does not enumerate related ASNs and no source confirming shared operational ownership was found [Likely for the numeric-adjacency observation] — https://rdap.arin.net/registry/autnum/770

Related ASNs

AS765, AS767, AS768, and AS769 sit in the same DoD NIC numeric block as AS770, but ARIN RDAP for AS770 does not itself list related ASNs, and no source confirming shared operational ownership beyond numeric adjacency was found as of 2026-07-31 [Likely for the numeric-adjacency observation] — https://rdap.arin.net/registry/autnum/770

Analyst note

Encountered as a dormant DoD-registered ASN. RDAP confirms registrant and a 1990 registration date, but every routing source agrees on zero announcements, zero peers, and zero cone, with no PeeringDB listing.