Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS5972

Announcement observedARIN

United States Department of Defense (DoD) · DNIC-ASBLK-05800-06055

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/11/2026, 15:25:19Snapshot expired

View network topology RDAP registration

ASN: AS5972
Registration country: United States
Name: United States Department of Defense (DoD)
Abbreviation: DNIC-ASBLK-05800-06055
Registration date: 10/24/1995, 04:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
128.44.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.0.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.11.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.116.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.128.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.13.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.14.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.16.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.160.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.168.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.170.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.172.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.18.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.188.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.196.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.200.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.208.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.224.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.24.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.240.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.26.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.32.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.48.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.56.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.60.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.62.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.64.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
128.44.68.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.0.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.104.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.106.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	9/29/2026, 16:00:00	✓	×	Historical record
138.136.107.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/5/2026, 16:00:00	✓	×	Historical record
138.136.108.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	9/23/2026, 16:00:00	✓	×	Historical record
138.136.109.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.110.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.112.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/5/2026, 16:00:00	✓	×	Historical record
138.136.12.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.120.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.129.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.13.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.130.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.131.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.132.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.133.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.134.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.135.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.136.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.137.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
138.136.138.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: United States Department of Defense (DoD)
RIR: ARIN
Registration country: United States
Registration date: 10/24/1995, 04:00:00
Abuse contact: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil

Snapshot trend

10/11/2026, 15:25:191477 v40 v63 Upstream · 0 Uncertain

9/29/2026, 13:57:451470 v40 v63 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn