Data as of Nov 3, 2026
131.57.0.0/16
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 131.57.0.0/16 | 65,536 | AF-HNIT-EITAAS-MSOFT-VPN-131-57 | unknown | — | — | — |
| └ 131.57.0.0/16 | 65,536 | AF-HNIT-EITAAS-MSOFT-VPN-131-57 | Air Force Systems Networking (7ESG) · US | Allocation | Aug 18, 2025 | [email protected] |
Network & registry
Announced by
Covering announcement 131.32.0.0/11
- Prefix
- 131.32.0.0/11
- Announced by
- AS721 United States Department of Defense (DoD)
- Type
- Business
- RPKI
- No RPKI
- RIR
- ARIN
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 131.32.0.0/11
131.32.0.0/11
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
131.32.0.0/11 spans several registrations: 64 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 20, 1988
- Status
- assigned