Data as of Nov 3, 2026
143.46.0.0/16
No anonymizer space · no proxy exits in 30 daysHeadquarters, USAISC · reallocated from United 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 |
|---|---|---|---|---|
| 143.46.5.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.8.0/23 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.10.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.11.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.12.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.17.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.18.0/24 since Jul 2022 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.20.0/24 since Aug 2022 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.21.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.22.0/24 since May 2022 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.23.0/24 since May 2022 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.24.0/24 since Dec 2022 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.25.0/24 since Dec 2022 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.26.0/24 since Jan 2023 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.27.0/24 since Jan 2023 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.32.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.33.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.34.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.35.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.36.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.37.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.39.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.48.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.49.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.50.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.51.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.53.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.60.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.110.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.116.0/22 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.120.0/22 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.128.0/23 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.130.0/23 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.134.0/23 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.140.0/24 since Nov 2023 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.141.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.142.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.143.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.144.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.145.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.146.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.147.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.150.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.151.0/24 since Sep 2023 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.158.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.161.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.164.0/22 since Aug 2023 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.190.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.210.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.229.0/24 since Nov 2021 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.240.0/24 since Jan 2022 | AS1637 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 143.46.253.0/24 since Nov 2021 | AS1637 | 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 |
|---|---|---|---|---|---|---|
| 143.46.0.0/16 | 65,536 | ZAMA-NET | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Mar 26, 1990 | [email protected] |
| └ 143.46.0.0/16 | 65,536 | ZAMA-NET | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 21, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 143.46.0.0/16
- Registration type
- Direct Allocation
- Record created
- Mar 26, 1990
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 21, 2025
Origin network
AS1637
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
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 2
- Last change of origin
- Aug 2017
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 143.46.0.0/16
- Netname
- ZAMA-NET
- 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-143-46-0-0-2
- Parent
- NET-143-46-0-0-1
- Created
- Aug 21, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 26, 1990
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN