Data as of Nov 3, 2026
164.237.0.0/16
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 |
|---|---|---|---|---|---|---|
| 164.227.0.0 - 164.255.255.255 | 1,900,544 | DNIC-SUPERBLK1 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Apr 29, 2004 | [email protected] |
| └ 164.227.0.0 - 164.255.255.255 | 1,900,544 | DNIC-SUPERBLK1 | DoD Network Information Center (DNIC) · US | Reallocated | Aug 26, 2025 | [email protected] |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 164.227.0.0 - 164.255.255.255
- Registration type
- Direct Allocation
- Record created
- Apr 29, 2004
- Reallocated to
- DoD Network Information Center (DNIC)
- Reallocated
- Aug 26, 2025
Origin network
AS749
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- 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
- Sep 2021
- Current origin since
- Sep 2021 · 5.1 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 164.227.0.0 - 164.255.255.255
- Netname
- DNIC-SUPERBLK1
- Registrant
- DoD Network Information Center
- Organization
- DoD Network Information Center (DNIC)
- Org address
- 3990 E. Broad Street, Columbus, OH, 43218
- Org country
- US
- Type
- Reallocated
- Handle
- NET-164-227-0-0-3
- Parent
- NET-164-227-0-0-2
- Created
- Aug 26, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 29, 2004
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Network DoD
- Phone
- +1-844-347-2457
- Handle
- MIL-HSTMST-ARIN