Data as of Nov 9, 2026
137.234.88.0/24
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Oct 22, 2026
from AS637 United 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 |
|---|---|---|---|---|---|---|
| 137.234.0.0/16 | 65,536 | TCTL-N | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Jan 12, 1990 | disa. |
| └ 137.234.0.0/16 | 65,536 | TCTL-N | DoD Network Information Center (DNIC) · US | Reallocated | Aug 28, 2025 | disa. |
Network & registry
Origin network
AS637
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
- Reactivated
- First seen
- Jan 2019
- Current origin since
- Oct 22, 2026 · under a month
- Origin networks
- 2
- Last change of origin
- Sep 2023
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- Not stated by the registry
- Netname
- TCTL-N
- Registrant
- DoD Network Information Center (DNIC)
- Organization
- Not stated by the registry
- Created
- Aug 28, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 12, 1990
- Status
- assigned