Data as of Nov 8, 2026
132.128.0.0/12
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 |
|---|---|---|---|---|
| 132.128.0.0/16 since May 2005 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.128.12.0/24 since Sep 2019 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.128.40.0/21 since Mar 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.128.48.0/21 since Mar 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.128.253.0/24 since Apr 2019 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.129.0.0/16 since Sep 2016 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.130.0.0/16 since May 2005 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.130.12.0/24 since Sep 2019 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.130.40.0/21 since Mar 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.130.48.0/21 since Mar 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.130.198.0/24 since Oct 2025 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.130.199.0/24 since Mar 2024 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.130.250.0/24 since Jun 2018 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.130.251.0/24 since Jun 2018 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.130.253.0/24 since Jun 2018 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.131.0.0/16 since May 2005 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.131.40.0/21 since Mar 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.131.48.0/21 since Mar 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.131.253.0/24 since Aug 2017 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.132.0.0/16 since May 2005 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.132.40.0/21 since Mar 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.132.48.0/21 since Mar 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.132.253.0/24 since Aug 2017 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.133.0.0/16 since May 2005 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.133.198.0/24 since Dec 2023 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.133.199.0/24 since Nov 2023 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.133.241.0/24 since May 2022 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.133.242.0/24 since Mar 2018 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.133.253.0/24 since Oct 2017 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.134.0.0/16 since May 2005 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.134.48.0/21 since Mar 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.134.253.0/24 since Aug 2017 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.135.0.0/16 since May 2005 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.136.0.0/16 since Aug 2016 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.140.0.0/24 since Aug 2025 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.140.2.0/24 since Feb 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.140.3.0/24 since May 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.140.4.0/24 since Apr 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.140.5.0/24 since Oct 2025 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.140.6.0/24 since Apr 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.140.7.0/24 since Nov 2025 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.140.178.0/24 since Jan 2022 | AS367 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.141.0.0/18 since Jul 2024 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.141.128.0/18 since May 2024 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.142.0.0/22 since May 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.142.4.0/22 since Jun 2020 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.142.9.0/24 since Aug 2023 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.142.10.0/24 since Jul 2024 | AS306 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 132.142.131.0/24 since Feb 2023 | AS306 | 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 |
|---|---|---|---|---|---|---|
| 132.133.0.0/16 | 65,536 | ARNG-WY-NGNET | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Mar 26, 1990 | disa. |
| └ 132.133.0.0/16 | 65,536 | ARNG-WY-NGNET | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 20, 2025 | disa. |
| 132. | 655,360 | ARNG-NG-CONC6 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Mar 5, 1990 | disa. |
| └ 132. | 655,360 | ARNG-NG-CONC6 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 20, 2025 | disa. |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
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
132.128.0.0/12 spans several registrations: 4 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 5, 1990
- Status
- assigned