Data as of Nov 9, 2026
143.73.0.0/16
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 |
|---|---|---|---|---|
| 143.73.0.0/22 since Mar 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.8.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.16.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.28.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.29.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.30.0/23 since Oct 10, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.30.0/24 since Oct 10, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.31.0/24 since Oct 10, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.35.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.37.0/24 since Oct 16, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.38.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.49.0/24 since Jul 2025 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.50.0/24 since May 2025 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.51.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.53.0/24 since Jul 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.55.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.56.0/24 since Nov 2024 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.57.0/24 since Dec 2025 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.58.0/24 since Jan 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.62.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.63.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.64.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.65.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.69.0/24 since Jan 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.70.0/24 since Jan 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.71.0/24 since Jan 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.72.0/24 since Jan 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.76.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.78.0/24 since Jan 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.79.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.84.0/24 since Sep 28, 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.85.0/24 since Feb 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.86.0/24 since Sep 2023 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.90.0/24 since Nov 2021 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.92.0/24 since Jan 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.93.0/24 since Jul 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.94.0/24 since Sep 29, 2026 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.95.0/24 since Feb 2025 | AS1501 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.126.0/24 since Oct 16, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.73.173.0/24 since Dec 2023 | AS747 | 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 |
|---|---|---|---|---|---|---|
| 143.73.0.0/16 | 65,536 | PM-WIN-T-NET11 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Mar 26, 1990 | disa. |
| └ 143.73.0.0/16 | 65,536 | PM-WIN-T-NET11 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 21, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 143.
73. 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
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
- Nov 2008
- Current origin since
- Aug 2010 · 16 yr
- Origin networks
- 2
- Last change of origin
- Aug 2010
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 143.
73. 0. 0/ 16 - Netname
- PM-WIN-T-NET11
- 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-143-73-0-0-2
- Parent
- NET-143-73-0-0-1
- 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