Data as of Nov 6, 2026
6.66.128.0/19
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 6.66.128.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.130.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.132.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.134.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.136.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.138.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.140.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.142.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.144.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.146.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.148.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.150.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.152.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.154.0/23 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.157.0/24 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 6.66.158.0/24 since Aug 2026 | AS1540 | Business | United States Department of Defense (DoD) via 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 |
|---|---|---|---|---|---|---|
| 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
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
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
- Jun 2023
- Current origin since
- Jun 2023 · 3.4 yr
- 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