Data as of Nov 7, 2026
143.73.30.0/23
No anonymizer space · no proxy exits in 30 daysHeadquarters, USAISC · reallocated from United States Department of Defense (DoD)
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Recent change
New origin Oct 10, 2026
from AS367 United States Department of Defense (DoD)
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 143.73.0.0/16 since Aug 2010 | AS721 | Business | United States Department of Defense (DoD) via Headquarters, USAISC |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 143.73.30.0/24 since Oct 10, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.31.0/24 since Oct 10, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, 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 |
|---|---|---|---|---|---|---|
| 143.73.0.0/16 | 65,536 | PM-WIN-T-NET11 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Mar 26, 1990 | disa. |
| └ 143.73.0.0/16 | 65,536 | PM-WIN-T-NET11 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 21, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 143.
73. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Mar 26, 1990
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 21, 2025
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
- Aug 2019
- Current origin since
- Oct 10, 2026 · under a month
- Origin networks
- 3
- Last change of origin
- Oct 10, 2026
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 143.
73. 0. 0/ 16 - Netname
- PM-WIN-T-NET11
- Registrant
- Headquarters, USAISC
- Organization
- Headquarters, USAISC (HEADQU-3)
- Org address
- NETC-ANC CONUS TNOSC, Fort Huachuca, AZ, 85613
- Org country
- US
- Type
- Reallocated
- Handle
- NET-143-73-0-0-2
- Parent
- NET-143-73-0-0-1
- Created
- Aug 21, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 26, 1990
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN