Data as of Nov 9, 2026
143.194.138.0/24
No anonymizer space · no proxy exits in 30 daysHeadquarters, USAISC
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 |
|---|---|---|---|---|---|---|
| 143.194.0.0/16 | 65,536 | PM-WIN-T-NET4 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 8, 1990 | disa. |
| └ 143.194.0.0/16 | 65,536 | PM-WIN-T-NET4 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 21, 2025 | — |
Network & registry
Origin network
AS1501
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
Who has announced this prefix
latest 12 of 18 stints
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2010
- Current origin since
- Jul 2024 · 2.3 yr
- Origin networks
- 2
- Last change of origin
- Aug 2011
Recorded history
History
- Stints on record
- 18
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- Not stated by the registry
- Netname
- PM-WIN-T-NET4
- Registrant
- Headquarters, USAISC (HEADQU-3)
- Organization
- Not stated by the registry
- Created
- Aug 21, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 8, 1990
- Status
- assigned