Data as of Nov 5, 2026
131.73.0.0/16
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcements
Nesting
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Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 131.73.16.0/24 since Jan 2025 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.17.0/24 since Nov 5, 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.18.0/24 since Nov 5, 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.19.0/24 since Nov 5, 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.27.0/24 since Jul 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.28.0/24 since Jul 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.29.0/24 since Jul 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.30.0/24 since Aug 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.31.0/24 since Aug 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.32.0/24 since Jul 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.33.0/24 since Nov 5, 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.69.0/24 since Jul 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.70.0/24 since Jul 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.71.0/24 since Jul 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.72.0/24 since Jul 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.73.0/24 since Jul 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.74.0/24 since Nov 5, 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.75.0/24 since Nov 5, 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.76.0/24 since Nov 5, 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.77.0/24 since Nov 5, 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.73.78.0/24 since Nov 5, 2026 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center |
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 |
|---|---|---|---|---|---|---|
| 131.73.0.0/16 | 65,536 | DNIC-RNET-131-073 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 25, 1988 | disa. |
| └ 131.73.0.0/16 | 65,536 | DNIC-RNET-131-073 | DoD Network Information Center (DNIC) · US | Reallocated | Aug 28, 2025 | disa. |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 131.
73. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Oct 25, 1988
- Legacy
- yes
- Reallocated to
- DoD Network Information Center (DNIC)
- Reallocated
- Aug 28, 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
- Rotating
- First seen
- Sep 2021
- Current origin since
- Jan 2025 · 1.8 yr
- Origin networks
- 2
- Last change of origin
- Jan 2025
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 131.
73. 0. 0/ 16 - Netname
- DNIC-RNET-131-073
- Registrant
- DoD Network Information Center
- Organization
- DoD Network Information Center (DNIC)
- Org address
- 3990 E. Broad Street, Columbus, OH, 43218
- Org country
- US
- Type
- Reallocated
- Handle
- NET-131-73-0-0-2
- Parent
- NET-131-73-0-0-1
- Created
- Aug 28, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 25, 1988
- Status
- assigned
Report abuse
Abuse contact
- disa.
columbus. ns. mbx. hostmaster-dod-nic@ mail. mil - Name
- Network DoD
- Phone
- +1-844-347-2457
- Handle
- MIL-HSTMST-ARIN