Data as of Nov 15, 2026
192.83.203.0/24
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
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 |
|---|---|---|---|---|---|---|
| 192.83.203.0/24 | 256 | RADNET1 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Sep 19, 1990 | disa. |
| └ 192.83.203.0/24 | 256 | RADNET1 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 25, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 192.
83. 203. 0/ 24 - Registration type
- Direct Allocation
- Record created
- Sep 19, 1990
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 25, 2025
Origin network
AS1590
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Registered
- Apr 3, 2006
- Domain
- mail.mil
- Industry
- Military, Defense, National Security, and International Affairs
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 192.
83. 203. 0/ 24 - Netname
- RADNET1
- 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-192-83-203-0-2
- Parent
- NET-192-83-203-0-1
- Created
- Aug 25, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 19, 1990
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN