Autonomous system profile

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

AS27137

Announcement observedARIN

United States Department of Defense (DoD) · DNIC-ASBLK-27032-27159

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

Last active10/1/2026, 22:34:09Snapshot expired

View network topology RDAP registration

ASN: AS27137
Registration country: United States
Name: United States Department of Defense (DoD)
Abbreviation: DNIC-ASBLK-27032-27159
Registration date: 1/16/2003, 20:37:31
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
128.26.37.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.38.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.39.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/30/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Historical record
128.26.40.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.54.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.88.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.94.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.95.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.96.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.97.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.98.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
128.26.99.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
139.241.234.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/1/2026, 16:00:00	✓	×	Historical record
198.218.175.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
198.218.20.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
198.218.21.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
198.218.22.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
198.218.26.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
198.218.5.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
198.218.8.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
198.219.147.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
198.220.187.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
198.220.71.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
214.25.177.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
214.51.16.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	Historical record
214.6.250.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	9/17/2026, 16:00:00	✓	×	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: 1/16/2003, 20:37:31
Abuse contact: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil

Snapshot trend

10/1/2026, 22:34:0926 v40 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