Autonomous system detail

AS730

Not announced

Operated by AFCONC-BLOCK2-AS - Air Force Systems Networking.

Summary

// analyst note
Dormant/unannounced DoD ASN (Air Force Systems Networking, ARIN handle 7ESG). Top-level RDAP autnum record carries no registration event, only a 2008-06-06 last-changed event, so allocated_date is a sourced null rather than a borrowed entity/block-level date. Block membership AS727-AS746 confirmed by two independent live RDAP fetches. All four routing sources agree on zero announcements, zero peers, zero cone.
// security note
NEUTRAL/DATED: no notable public abuse signal found as of 2026-07-25; a lower-authority third-party aggregator (jamesbrine.com.au) reports no honeypot observations for AS730; Spamhaus ASN-lookup, NANOG archives, and Qrator Radar bogon/hijack detail were inconclusive due to session access limits (404 / CAPTCHA / JS-rendered), not confirmed clean.
IPv4 prefixes
0
~0 addresses
IPv6 prefixes
0
Peer networks
0
0 up · 0 down
IANA block
1-1876
Assigned by ARIN
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: Medium

AS730 is a dormant, unannounced autonomous system registered under ARIN to Air Force Systems Networking, a U.S. Air Force/DoD network, currently originating zero IPv4 and zero IPv6 prefixes in the global routing table.

The ASN belongs to the ARIN block AS727AS746 (AFCONC-BLOCK2-AS), whose registrant handle 7ESG lists an address at Maxwell AFB, Alabama, and whose administrative contact routes through DISA Columbus (Defense Information Systems Agency). Two independent live RDAP fetches agree on this block membership.

AS730 has no individual RDAP record with a "registration" event: the autnum's top-level RDAP events list carries only a "last changed" entry dated 2008-06-06, confirmed by a live re-fetch rather than a truncation artifact. An entity-level date exists nearby — a registrant "registration" event dated 2008-06-05 — but that is not AS730's own allocation record, so allocated_date is reported as a sourced Unknown rather than borrowed from that decoy.

Routing sources are unanimous: CAIDA AS Rank places AS730 at 79,459 with a singleton customer cone (itself only, 0 prefixes, 0 addresses), and bgp.he.net/bgp.tools independently confirm zero announced prefixes and zero visible peers. No PeeringDB profile exists for AS730 or its parent block, and no operator-official website could be located — afsystemsnetworking.af.mil fails to resolve, and maxwell.af.mil/afmc.af.mil both returned HTTP 403.

Operator
Air Force Systems Networking (U.S. Air Force/DoD network; ARIN registrant handle 7ESG, Maxwell AFB, AL) [Confirmed] — https://rdap.arin.net/registry/autnum/730
Country / RIR
US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/730
Allocated
Unknown — the autnum's top-level RDAP events[] contains no "registration" eventAction, only a "last changed" event dated 2008-06-06; a registrant-entity date (2008-06-05) exists but is not AS730's own top-level allocation record [Confirmed absence, verified via live re-fetch] — https://rdap.arin.net/registry/autnum/730
Org status
active per ARIN RDAP [Confirmed] — https://rdap.arin.net/registry/autnum/730
Contacts
disa.columbus.ns.mbx.arin-registrations@mail.mil (DISA Columbus); registrant address 501 East Moore Dr. Bldg 884 Rm 1100, Gunther Annex, Maxwell AFB, AL 36114 [Confirmed] — https://rdap.arin.net/registry/autnum/730
Website
Unknown — no operator-official website located [Unknown]

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-25; one lower-authority third-party aggregator reports no honeypot observations for AS730; Spamhaus ASN-lookup, NANOG archives, and Qrator Radar bogon/hijack detail could not be directly verified this session (404 / CAPTCHA-blocked / JS-rendered)

[Likely] — https://jamesbrine.com.au/as730-air-force-systems-networking-asn-threat-intelligence-and-network-information/

Network & routing

Network type
not publicly routed; consistent with a non-publicly-routed internal U.S. Air Force/DoD network (0 announced prefixes observed), not confirmed by an operator statement [Likely] — https://bgp.he.net/AS730
Size
dormant — 0 IPv4 prefixes / 0 IPv4 addresses and 0 IPv6 prefixes; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — https://stat.ripe.net/AS730, https://asrank.caida.org/, https://bgp.he.net/AS730, https://bgp.tools/as/730
Routing/peering
NOT announced — 0 upstreams / 0 peers / 0 downstreams per CAIDA asnDegree and 0 BGP peers per bgp.he.net/bgp.tools; no PeeringDB entry for AS730 or the parent block [Confirmed] — https://asrank.caida.org/, https://www.peeringdb.com/api/net?asn=730
RPKI
not assessable — AS730 announces no prefixes, so there are no ROAs to validate [Confirmed] — https://stat.ripe.net/AS730
Notable usage
Unknown — no operator-official page describing mission/usage was reachable; candidate .mil domains failed DNS (afsystemsnetworking.af.mil) or returned HTTP 403 (maxwell.af.mil, afmc.af.mil) [Unknown]
Related ASNs
block AS727–AS746 (AFCONC-BLOCK2-AS, handle AS727), confirmed via two independent live RDAP fetches [Confirmed] — https://rdap.arin.net/registry/autnum/730
Analyst note
Dormant, unannounced DoD/Air Force ASN with no individual RDAP allocation event; live routing is entirely absent (0 prefixes, 0 peers across RIPEstat, CAIDA, bgp.he.net, bgp.tools). Website and mission-usage unreachable; abuse-feed coverage bounded by session access limits rather than confirmed clean.
[ 02 ] — Announced prefixes

What this network routes.

0 prefixes total · RIPEstat data · cached, not real-time
// IPv4 prefixes0
No IPv4 prefixes announced.
// IPv6 prefixes0
No IPv6 prefixes announced.
[ 03 ] — Notable peers & upstreams

Who it talks to.

0 observed neighbours
Neighbour data unavailable from public BGP collectors.