Data as of Nov 9, 2026
143.140.0.0/14
No anonymizer spaceUnited 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 |
|---|---|---|---|---|
| 143.140.0.0/21 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.140.8.0/23 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.140.10.0/24 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.140.11.0/24 since Mar 2024 | AS129 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.140.32.0/19 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.140.64.0/21 since Oct 2020 | AS409 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.140.70.0/24 since Oct 2020 | AS409 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.140.128.0/19 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.140.160.0/20 since May 2026 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.96.0/22 since Dec 2024 | AS391 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.100.0/22 since Apr 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.104.0/22 since Sep 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.112.0/24 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.113.0/24 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.114.0/24 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.115.0/24 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.116.0/24 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.117.0/24 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.118.0/24 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.119.0/24 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.128.0/22 since Jun 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.136.0/21 since Jun 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.160.0/20 since Aug 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.176.0/20 since Aug 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.141.192.0/18 since Jul 2025 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.142.0.0/18 since Jan 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.142.96.0/21 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.142.106.0/24 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking | |
| 143.142.160.0/20 since Feb 2024 | AS56 | Business | United States Department of Defense (DoD) via Air Force Systems Networking |
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. | 1,245,184 | AFIN-B | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Sep 21, 1990 | disa. |
| └ 143. | 1,245,184 | AFIN-B | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 19, 2025 | disa. |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 143.
139. 0. 0 - 143. 157. 255. 255 - Registration type
- Direct Allocation
- Record created
- Sep 21, 1990
- Legacy
- yes
- Reallocated to
- Air Force Systems Networking (7ESG)
- Reallocated
- Aug 19, 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
- Jun 2011
- Current origin since
- Jun 2011 · 15 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 143.
139. 0. 0 - 143. 157. 255. 255 - Netname
- AFIN-B
- Registrant
- Air Force Systems Networking
- Organization
- Air Force Systems Networking (7ESG)
- Org address
- 501 EAST MOORE DR. BLDG 884 RM 1100 GUNTHER ANNEX, MAXWELL AFB, AL, 36114
- Org country
- US
- Type
- Reallocated
- Handle
- NET-143-139-0-0-2
- Parent
- NET-143-139-0-0-1
- Created
- Aug 19, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 21, 1990
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN