Data as of Nov 4, 2026
131.20.0.0/15
No anonymizer spaceUnited States Department of Defense (DoD)
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 |
|---|---|---|---|---|---|---|
| 131.20.0.0/16 | 65,536 | EGLIN-NET | unknown | — | — | — |
| └ 131.20.0.0/16 | 65,536 | EGLIN-NET | Air Force Systems Networking (7ESG) · US | Allocation | Aug 18, 2025 | [email protected] |
| 131.21.0.0/16 | 65,536 | DNIC-SNET-131-021 | unknown | — | — | — |
| └ 131.21.0.0/16 | 65,536 | DNIC-SNET-131-021 | DoD Network Information Center (DNIC) · US | Allocation | Aug 27, 2025 | [email protected] |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS749
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Domain
- mail.mil
- Industry
- Military, Defense, National Security, and International Affairs
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2021
- Current origin since
- Sep 2021 · 5.2 yr
- Origin networks
- 1
Whois
Registration for this announcement
131.20.0.0/15 spans several registrations: 4 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 8, 1988
- Status
- assigned