Data as of Nov 5, 2026
143.68.208.0/21
No anonymizer space · no proxy exits in 30 daysHeadquarters, USAISC · reallocated from United States Department of Defense (DoD)
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Recent change
New origin Jul 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 143.68.192.0/18 since Sep 2021 | AS749 | Business | United States Department of Defense (DoD) via Headquarters, USAISC |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 143.68.209.0/24 since Jul 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.68.210.0/24 since Jul 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.68.211.0/24 since Jul 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.68.212.0/23 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 |
|---|---|---|---|---|---|---|
| 143.68.0.0/16 | 65,536 | CTNOSC-OCONUS | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Mar 26, 1990 | disa. |
| └ 143.68.0.0/16 | 65,536 | CTNOSC-OCONUS | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 21, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 143.
68. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Mar 26, 1990
- 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
- Stable
- First seen
- Jul 2026
- Current origin since
- Jul 2026 · 3 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 143.
68. 0. 0/ 16 - Netname
- CTNOSC-OCONUS
- 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-143-68-0-0-2
- Parent
- NET-143-68-0-0-1
- Created
- Aug 21, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 26, 1990
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN