Data as of Nov 3, 2026
204.44.136.0/23
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 |
|---|---|---|---|---|---|---|
| 204.44.136.0/23 | 512 | CNTTR | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Dec 27, 1994 | [email protected] |
| └ 204.44.136.0/23 | 512 | CNTTR | DoD Network Information Center (DNIC) · US | Reassigned | Sep 8, 2025 | [email protected] |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 204.44.136.0/23
- Registration type
- Direct Allocation
- Record created
- Dec 27, 1994
- Legacy
- yes
Origin network
AS668
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Registered
- Apr 24, 1990
- Domain
- mail.mil
- Website
- www.hpc.mil/solution-areas/networking
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Jun 2018 · 8.3 yr
- Origin networks
- 2
- Last change of origin
- Jun 2018
Recorded history
History
- Handoffs
- 2
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS668 | RADB | DREN IPv4 | MAINT-AS668 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 204.44.136.0/23
- Netname
- CNTTR
- Registrant
- DoD Network Information Center
- Organization
- DoD Network Information Center (DNIC)
- Org address
- 3990 E. Broad Street, Columbus, OH, 43218
- Org country
- US
- Type
- Reassigned
- Handle
- NET-204-44-136-0-2
- Parent
- NET-204-44-136-0-1
- Created
- Sep 8, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 27, 1994
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Network DoD
- Phone
- +1-844-347-2457
- Handle
- MIL-HSTMST-ARIN