Data as of Nov 3, 2026
155.30.138.0/24
No anonymizer space · no proxy exits in 30 daysHeadquarters, USAISC · reallocated from United States Department of Defense (DoD)
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Jun 2026
from AS5953 United States Department of Defense (DoD), after 11.3 years unannounced
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 |
|---|---|---|---|---|---|---|
| 155.30.0.0/16 | 65,536 | PM-WIN-T-NET17 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 29, 1991 | [email protected] |
| └ 155.30.0.0/16 | 65,536 | PM-WIN-T-NET17 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 23, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 155.30.0.0/16
- Registration type
- Direct Allocation
- Record created
- Oct 29, 1991
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 23, 2025
Origin network
AS1540
US
- Name
- Headquarters, USAISC
- Type
- Business
- Registered
- May 12, 2004
- Domain
- mail.mil
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Feb 2015
- Current origin since
- Jun 2026 · 5 mo
- Origin networks
- 2
- Last change of origin
- Jun 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 155.30.0.0/16
- Netname
- PM-WIN-T-NET17
- 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-155-30-0-0-2
- Parent
- NET-155-30-0-0-1
- Created
- Aug 23, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 29, 1991
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN