Data as of Nov 10, 2026
6.3.0.0/18
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 6.0.0.0/8 | 16,777,216 | CONUS-YPG-NET | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Feb 1, 1994 | disa. |
| └ 6.0.0.0/8 | 16,777,216 | CONUS-YPG-NET | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 25, 2025 | — |
Network & registry
Announced by
Covering announcement 6.3.0.0/17
- Prefix
- 6.3.0.0/17
- Announced by
- AS668 United States Department of Defense (DoD)
- Type
- Business
- RPKI
- No RPKI
- Netname
- CONUS-YPG-NET
- Registrant
- Headquarters, USAISC
- RIR
- ARIN
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 6.
0. 0. 0/ 8 - Registration type
- Direct Allocation
- Record created
- Feb 1, 1994
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 25, 2025
Origin network
AS668
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Registered
- Apr 24, 1990
- Domain
- mail.mil
- Website
- www.hpc.mil/solution-areas/networking
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 6.3.0.0/17
6.3.0.0/17
Routing history
- Pattern
- Stable
- First seen
- Feb 2026
- Current origin since
- Feb 2026 · 9 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 6.
0. 0. 0/ 8 - Netname
- CONUS-YPG-NET
- 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-6-0-0-0-2
- Parent
- NET-6-0-0-0-1
- Created
- Aug 25, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 1, 1994
- Status
- assigned
Report abuse
Abuse contact
- disa.
columbus. ns. mbx. hostmaster-dod-nic@ mail. mil - Name
- Network DoD
- Phone
- +1-844-347-2457
- Handle
- MIL-HSTMST-ARIN