138.144.0.0/12

Currently announced by AS721 United States Department of Defense (DoD), in the routed prefix 138.144.0.0/12.

Current ASN
AS721
United States Department of Defense (DoD)
Routed prefix
138.144.0.0/12
Most specific route covering this prefix
ASNs over time
1
1 announcement record
RIR allocation
—
No allocation record found

Routing data · Nov 2, 2026, 14:22 UTC

ASN historyEvery routed prefix covering 138.144.0.0/12

PrefixASNNameRegistered countryFirst seen (UTC)Last seen (UTC)Status
138.144.0.0/12AS721United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing

More specific routes79 total

PrefixASNNameRegistered countryFirst seen (UTC)Last seen (UTC)Status
138.145.254.0/24AS665United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.147.0.0/24AS627United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.0.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.4.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.6.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.11.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.13.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.32.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.34.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.36.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.38.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.39.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.49.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.50.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.52.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.54.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.56.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.58.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.59.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.60.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.61.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.62.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.63.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.64.0/20AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.64.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.66.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.68.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.70.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.71.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.72.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.73.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.74.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.76.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.77.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.78.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.80.0/20AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.96.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.98.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.100.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.102.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.103.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.104.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.105.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.106.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.108.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.109.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.110.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.112.0/20AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.152.160.0/23AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.153.64.0/19AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.153.97.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.153.100.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.153.101.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.153.102.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.153.103.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.153.121.0/24AS5852United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.156.0.0/16AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.156.232.0/23AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.156.248.0/21AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.0.0/19AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.57.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.64.0/23AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.84.0/23AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.105.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.106.0/23AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.110.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.112.0/23AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.114.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.115.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.119.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.122.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.124.0/23AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.130.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.131.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.207.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.210.0/23AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.216.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.157.240.0/24AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing
138.158.0.0/16AS637United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 14:22Announcing

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.