Data as of Nov 10, 2026
131.87.217.0/24
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | RPKI |
|---|---|---|---|
| 131.86.0.0/15 since Dec 2010 | AS721 | Business |
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 |
|---|---|---|---|---|---|---|
| 131.87.0.0/16 | 65,536 | DNIC-RNET-131-87 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 25, 1988 | disa. |
| └ 131.87.0.0/16 | 65,536 | DNIC-RNET-131-87 | DoD Network Information Center (DNIC) · US | Reallocated | Aug 28, 2025 | disa. |
Network & registry
Announced by
Covering announcement 131.87.0.0/16
- Prefix
- 131.87.0.0/16
- Announced by
- AS721 United States Department of Defense (DoD)
- Type
- Business
- RPKI
- No RPKI
- Netname
- DNIC-RNET-131-87
- Registrant
- DoD Network Information Center
- RIR
- ARIN
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 131.
87. 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
Covering aggregate above, the prefix's own history below
131.87.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Dec 2010 · 16 yr
- Origin networks
- 3
- Last change of origin
- Dec 2010
Recorded history
History
- Handoffs
- 3
Whois
Registration for this announcement
- Range
- 131.
87. 0. 0/ 16 - Netname
- DNIC-RNET-131-87
- 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-131-87-0-0-2
- Parent
- NET-131-87-0-0-1
- 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