Autonomous system profile

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

AS369

Announcement observedARIN

United States Department of Defense (DoD) · DNIC-ASBLK-00306-00371

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

Last active9/29/2026, 06:35:36Snapshot expired

View network topology RDAP registration

ASN: AS369
Registration country: United States
Name: United States Department of Defense (DoD)
Abbreviation: DNIC-ASBLK-00306-00371
Registration date: 6/30/1989, 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
55.50.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/29/2026, 00:00:00	✓	×	Historical record
55.50.187.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.188.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.189.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.190.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.191.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.192.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.193.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.194.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.195.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.196.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.197.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.198.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.22.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.50.251.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/29/2026, 00:00:00	✓	×	Historical record
55.91.143.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.187.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.188.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.189.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.190.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.191.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.192.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.193.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.194.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.195.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.196.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.197.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.198.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.201.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.202.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.203.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.204.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.208.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.218.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.219.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.220.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.223.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.226.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.230.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.232.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.233.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.234.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.235.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.240.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.241.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.243.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.245.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.251.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	Historical record
55.91.43.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/22/2026, 00:00:00	✓	×	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: 6/30/1989, 04:00:00
Abuse contact: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil

Snapshot trend

9/29/2026, 06:35:3650 v41 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