158.11.40.0/24

Currently announced by AS721 United States Department of Defense (DoD), in the routed prefix 158.8.0.0/14.

Current ASN
AS721
United States Department of Defense (DoD)
Routed prefix
158.8.0.0/14
Most specific route covering this prefix
ASNs over time
2
4 announcement records
RIR allocation
ARIN
United States · 158.11.0.0/16

Routing data · Nov 11, 2026, 18:22 UTC

ASN historyEvery routed prefix covering 158.11.40.0/24

PrefixASNNameRegistered countryFirst seen (UTC)Last seen (UTC)Status
158.11.40.0/24AS1540Headquarters, USAISCUnited States2026-11-08 22:242026-11-11 00:24Stopped
158.11.40.0/23AS1540Headquarters, USAISCUnited States2026-10-20 18:212026-11-08 20:23Stopped
158.11.40.0/22AS1540Headquarters, USAISCUnited StatesBefore monitoring2026-11-08 20:23Stopped
158.8.0.0/14AS721United States Department of Defense (DoD)United StatesBefore monitoring2026-11-11 18:22Announcing

More specific routes0 total

No more specific routes inside this prefix.

Change logAll changes

Detected (UTC)PrefixChangeASNNamePrevious ASNCountry
2026-11-11 02:25158.11.40.0/24WithdrawalAS1540Headquarters, USAISC—United States
2026-11-08 22:24158.11.40.0/24New announcementNo longer announcedAS1540Headquarters, USAISC—United States
2026-11-08 22:24158.11.40.0/23WithdrawalAS1540Headquarters, USAISC—United States
2026-11-08 22:24158.11.40.0/22WithdrawalAS1540Headquarters, USAISC—United States
2026-10-30 02:20158.11.40.0/23WithdrawalAS1540Headquarters, USAISC—United States
2026-10-29 06:23158.11.40.0/23WithdrawalAS1540Headquarters, USAISC—United States
2026-10-28 06:19158.11.40.0/23WithdrawalAS1540Headquarters, USAISC—United States
2026-10-28 06:19158.11.40.0/22WithdrawalAS1540Headquarters, USAISC—United States
2026-10-21 10:21158.11.40.0/23WithdrawalAS1540Headquarters, USAISC—United States