Data as of Nov 3, 2026
131.87.0.0/16
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 |
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 |
|---|---|---|---|---|
| 131.87.6.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.7.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.10.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.12.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.13.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.40.0/22 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.53.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.60.0/24 since Mar 2026 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.68.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.93.0/24 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.98.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.99.0/24 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.100.0/22 since Oct 2016 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.104.0/22 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.108.0/22 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.112.0/23 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.204.0/23 since Jul 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.235.0/24 since Nov 2005 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.237.0/24 since Dec 2005 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.243.0/24 since Apr 2021 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.245.0/24 since Sep 2005 | AS27046 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.249.0/24 since Jun 2025 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.250.0/24 since Jun 2025 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.251.0/24 since Jun 2025 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.252.0/24 since Jun 2025 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.254.0/24 since Jun 2025 | AS5852 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 131.87.255.0/24 since Jun 2025 | 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 |
|---|---|---|---|---|---|---|
| 131.87.0.0/16 | 65,536 | DNIC-RNET-131-87 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 25, 1988 | [email protected] |
| └ 131.87.0.0/16 | 65,536 | DNIC-RNET-131-87 | DoD Network Information Center (DNIC) · US | Reallocated | Aug 28, 2025 | [email protected] |
Network & registry
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
Summary
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
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 131.87.76.0/24 | AS27046 | RADB | Proxy-Registered Route Object by DACOM(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 131.87.86.0/24 | AS27046 | RADB | Proxy-Registered Route Object by DACOM(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 131.87.209.0/24 | AS27046 | RADB | Proxy-Registered Route Object by DACOM(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 131.87.217.0/24 | AS27046 | RADB | Proxy-Registered Route Object by DACOM(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 131.87.234.0/24 | AS27046 | RADB | Proxy-Registered Route Object by DACOM(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
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
- [email protected]
- Name
- Network DoD
- Phone
- +1-844-347-2457
- Handle
- MIL-HSTMST-ARIN