Data as of Nov 3, 2026
158.11.40.0/23
No anonymizer space · no proxy exits in 30 daysHeadquarters, USAISC
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Oct 21, 2026
from AS367 United States Department of Defense (DoD)
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 158.11.40.0/22 since Oct 16, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 158.8.0.0/14 since Dec 2010 | AS721 | Business |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 158.11.0.0/16 | 65,536 | TACTICAL-PEO-C3T-20 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | May 13, 1992 | [email protected] |
| └ 158.11.0.0/16 | 65,536 | TACTICAL-PEO-C3T-20 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 25, 2025 | [email protected] |
Network & registry
Origin network
AS1540
US
- Name
- Headquarters, USAISC
- Type
- Business
- Registered
- May 12, 2004
- Domain
- mail.mil
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Sep 27, 2026
- Current origin since
- Oct 21, 2026 · under a month
- Origin networks
- 2
- Last change of origin
- Oct 21, 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- Not stated by the registry
- Netname
- TACTICAL-PEO-C3T-20
- Registrant
- Headquarters, USAISC (HEADQU-3)
- Organization
- Not stated by the registry
- Created
- Aug 25, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- May 13, 1992
- Status
- assigned