Data as of Nov 8, 2026
204.208.0.0/16
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcements
Nesting
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Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 204.208.0.0/22 since Aug 2021 | AS5972 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 204.208.6.0/23 since Aug 2021 | AS5972 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 204.208.10.0/23 since Aug 2021 | AS5972 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 204.208.12.0/22 since Oct 2022 | AS5972 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 204.208.16.0/20 since Aug 2021 | AS5972 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 204.208.32.0/19 since Aug 2021 | AS5972 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 204.208.57.0/24 since Jun 2022 | AS5972 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 204.208.64.0/20 since Oct 2023 | AS5972 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 204.208.100.0/24 since Aug 2023 | AS5972 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 204.208.128.0/17 since Jun 2024 | AS5972 | 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 |
|---|---|---|---|---|---|---|
| 204.208.0.0/16 | 65,536 | AMEDD-CHCS2 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Apr 24, 1995 | disa. |
| └ 204.208.0.0/16 | 65,536 | AMEDD-CHCS2 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 25, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 204.
208. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Apr 24, 1995
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 25, 2025
Origin network
AS721
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Domain
- mail.mil
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Dec 2010 · 16 yr
- Origin networks
- 2
- Last change of origin
- Dec 2010
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 204.
208. 0. 0/ 16 - Netname
- AMEDD-CHCS2
- 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-204-208-0-0-2
- Parent
- NET-204-208-0-0-1
- Created
- Aug 25, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 24, 1995
- 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