139.241.0.0/16

Currently announced by AS721 United States Department of Defense (DoD), in the routed prefix 139.241.0.0/16.

Current ASN
AS721
United States Department of Defense (DoD)
Routed prefix
139.241.0.0/16
Most specific route covering this prefix
ASNs over time
1
1 announcement record
RIR allocation
ARIN
United States · 139.241.0.0/16

Routing data · Nov 2, 2026, 00:27 UTC

ASN historyEvery routed prefix covering 139.241.0.0/16

PrefixASNNameRegistered countryFirst seen (UTC)Last seen (UTC)Status
139.241.0.0/16AS721United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing

More specific routes68 total

PrefixASNNameRegistered countryFirst seen (UTC)Last seen (UTC)Status
139.241.1.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.2.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.3.0/24AS321United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.4.0/24AS258Headquarters, USAISCUnited StatesBefore monitoring2026-11-02 00:27Announcing
139.241.6.0/24AS317United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.7.0/24AS27065United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.8.0/24AS405Air Force Systems NetworkingUnited StatesBefore monitoring2026-11-02 00:27Announcing
139.241.9.0/24AS406Air Force Systems NetworkingUnited StatesBefore monitoring2026-11-02 00:27Announcing
139.241.11.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.14.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.15.0/24AS27065United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.19.0/24AS463Air Force Systems NetworkingUnited StatesBefore monitoring2026-11-02 00:27Announcing
139.241.20.0/22AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.24.0/22AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.28.0/22AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.49.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.53.0/24AS316United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.56.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.57.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.58.0/24AS321United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.59.0/24AS321United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.63.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.64.0/22AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.71.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.72.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.73.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.74.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.75.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.76.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.77.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.83.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.84.0/24AS27065United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.86.0/24AS321United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.96.0/21AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.104.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.107.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.108.0/22AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.127.0/24AS363United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.128.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.129.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.132.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.133.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.134.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.135.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.137.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.139.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.142.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.143.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.144.0/24AS27065United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.145.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.146.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.147.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.148.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.150.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.151.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.212.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.219.0/24AS27065United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.220.0/24AS27138United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.224.0/24AS27065United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.228.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.229.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.231.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.234.0/24AS27137United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.243.0/24AS27138United States Department of Defense (DoD)United StatesBefore monitoring2026-11-02 00:27Announcing
139.241.5.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-10-19 20:18Stopped
139.241.61.0/24AS27064United States Department of Defense (DoD)United StatesBefore monitoring2026-10-27 04:22Stopped
139.241.131.0/24AS27066United States Department of Defense (DoD)United StatesBefore monitoring2026-10-30 00:19Stopped
139.241.237.0/24AS27065United States Department of Defense (DoD)United StatesBefore monitoring2026-10-26 12:23Stopped

Change logAll changes

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