Data as of Nov 3, 2026
155.28.232.0/21
No anonymizer space · no proxy exits in 30 daysHeadquarters, USAISC
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
from AS1493 Headquarters, USAISC
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 |
|---|---|---|---|---|---|---|
| 155.28.0.0/16 | 65,536 | PM-WIN-T-NET21 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 29, 1991 | [email protected] |
| └ 155.28.0.0/16 | 65,536 | PM-WIN-T-NET21 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 25, 2025 | — |
Network & registry
Origin network
AS1493
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
- Rotating
- First seen
- Aug 2022
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 2
- Last change of origin
- Jan 2023
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- Not stated by the registry
- Netname
- PM-WIN-T-NET21
- Registrant
- Headquarters, USAISC (HEADQU-3)
- Organization
- Not stated by the registry
- Created
- Aug 25, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 29, 1991
- Status
- assigned