Autonomous system profile

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

AS5974

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 active9/29/2026, 13:57:48Snapshot expired

View network topology RDAP registration

ASN: AS5974
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
131.77.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
131.77.104.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
156.112.88.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
156.112.89.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
156.112.90.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
156.112.91.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
156.112.92.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
156.112.94.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
209.22.236.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
214.23.232.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
214.24.243.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
214.38.232.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
214.38.236.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
214.49.128.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
214.66.160.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record
214.66.182.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/11/2026, 08:00:00	✓	×	Historical record

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

9/29/2026, 13:57:4816 v43 v61 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