Data as of Nov 3, 2026
138.183.0.0/17
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 |
|---|---|---|---|---|---|---|
| 138.183.0.0/16 | 65,536 | REGIONAL-WAH1 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | May 7, 1990 | [email protected] |
| └ 138.183.0.0/16 | 65,536 | REGIONAL-WAH1 | Navy Network Information Center (NNIC) (NNICN-1) · US | Reallocated | Aug 14, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 138.183.0.0/16
- Registration type
- Direct Allocation
- Record created
- May 7, 1990
- Legacy
- yes
- Reallocated to
- Navy Network Information Center (NNIC) (NNICN-1)
- Reallocated
- Aug 14, 2025
Origin network
AS647
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Registered
- Apr 19, 1990
- 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
- Oct 2011 · 15 yr
- Origin networks
- 2
- Last change of origin
- Oct 2011
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 138.183.0.0/16
- Netname
- REGIONAL-WAH1
- Registrant
- Navy Network Information Center (NNIC)
- Organization
- Navy Network Information Center (NNIC) (NNICN-1)
- Org address
- 2465 GUADALCANAL ROAD, VIRGINIA BEACH, VA, 23459
- Org country
- US
- Type
- Reallocated
- Handle
- NET-138-183-0-0-2
- Parent
- NET-138-183-0-0-1
- Created
- Aug 14, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- May 7, 1990
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN