Data as of Nov 6, 2026
206.37.0.0/16
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcements
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 |
|---|---|---|---|---|
| 206.37.0.0/24 since Jul 2025 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.12.0/24 since Jul 2025 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.14.0/24 since Oct 10, 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.17.0/24 since May 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.20.0/24 since Jan 2007 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.21.0/24 since Jan 2007 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.22.0/24 since Oct 16, 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.24.0/24 since Oct 16, 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.25.0/24 since Oct 16, 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.28.0/23 since Jun 2018 | AS668 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.30.0/23 since Jun 2018 | AS668 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.106.0/24 since Nov 2025 | AS56 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.107.0/24 since Nov 2025 | AS56 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.109.0/24 since Nov 2025 | AS56 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.112.0/21 since Dec 2025 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.138.0/23 since Dec 2011 | AS27066 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.198.0/24 since Jun 2007 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.202.0/24 since Jan 2023 | AS721 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.212.0/24 since May 2005 | AS2749 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.214.0/24 since Feb 2010 | AS5939 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.224.0/24 since Jun 2018 | AS668 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.225.0/24 since Dec 2006 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.226.0/24 since Sep 2026 | AS668 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.227.0/24 since Dec 2006 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.228.0/24 since Dec 2006 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.229.0/24 since Dec 2006 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.230.0/24 since Dec 2006 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.231.0/24 since Jan 2010 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.232.0/24 since Jun 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.233.0/24 since Jun 2012 | AS6034 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.238.0/24 since May 2005 | AS1590 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.240.0/24 since Jun 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.242.0/24 since May 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.243.0/24 since Sep 2025 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.245.0/24 since Jun 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.247.0/24 since Apr 2014 | AS27064 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.249.0/24 since Oct 2022 | AS367 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.250.0/23 since Oct 2022 | AS367 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.252.0/24 since Jun 2018 | AS668 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.253.0/24 since Jun 2026 | AS1540 | Business | United States Department of Defense (DoD) via DoD Network Information Center | |
| 206.37.254.0/23 since Oct 2022 | AS367 | 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 |
|---|---|---|---|---|---|---|
| 206.36.0.0/14 | 262,144 | DNIC-NETBLK-206-036 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | May 30, 1995 | disa. |
| └ 206.36.0.0/14 | 262,144 | DNIC-NETBLK-206-036 | DoD Network Information Center (DNIC) · US | Reallocated | Sep 5, 2025 | disa. |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 206.
36. 0. 0/ 14 - Registration type
- Direct Allocation
- Record created
- May 30, 1995
- Legacy
- yes
- Reallocated to
- DoD Network Information Center (DNIC)
- Reallocated
- Sep 5, 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
- 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
- Range
- 206.
36. 0. 0/ 14 - Netname
- DNIC-NETBLK-206-036
- 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-206-36-0-0-2
- Parent
- NET-206-36-0-0-1
- Created
- Sep 5, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- May 30, 1995
- 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