Data as of Nov 7, 2026
199.123.122.0/24
No anonymizer space · no proxy exits in 30 daysHeadquarters, USAISC · reallocated from United States Department of Defense (DoD)
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 199.123.122.0/23 since Dec 2010 | AS721 | 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 |
|---|---|---|---|---|---|---|
| 199. | 3,072 | NETBLK-APPOC1 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Mar 20, 1995 | disa. |
| └ 199. | 3,072 | NETBLK-APPOC1 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 21, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 199.
123. 116. 0 - 199. 123. 127. 255 - Registration type
- Direct Allocation
- Record created
- Mar 20, 1995
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 21, 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
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Oct 2007
- Current origin since
- Jul 2025 · 1.3 yr
- Origin networks
- 5
- Last change of origin
- Jul 2025
Recorded history
History
- Handoffs
- 4
Whois
Registration for this announcement
- Range
- 199.
123. 116. 0 - 199. 123. 127. 255 - Netname
- NETBLK-APPOC1
- 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-199-123-116-0-2
- Parent
- NET-199-123-116-0-1
- Created
- Aug 21, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 20, 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