Data as of Nov 9, 2026
205.106.0.0/15
No anonymizer spaceUnited 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 |
|---|---|---|---|---|
| 205.106.72.0/22 since Jun 2017 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.106.72.0/24 since Oct 2025 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.106.80.0/22 since Apr 2017 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.106.82.0/24 since Feb 2025 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.106.84.0/22 since Aug 2019 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.106.87.0/24 since Feb 2026 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.106.100.0/22 since Jan 2019 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.106.102.0/24 since Sep 2024 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.106.188.0/23 since Feb 2026 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.106.216.0/24 since Oct 2025 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.107.220.0/22 since May 2026 | AS647 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) | |
| 205.107.228.0/22 since Jan 2024 | AS5371 | Business | United States Department of Defense (DoD) via Navy Network Information Center (NNIC) |
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 |
|---|---|---|---|---|---|---|
| 205. | 4,063,232 | NETBLK-NIC-BLK1 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | May 18, 1998 | disa. |
| └ 205. | 4,063,232 | NETBLK-NIC-BLK1 | Navy Network Information Center (NNIC) (NNICN-1) · US | Reallocated | Aug 15, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 205.
56. 0. 0 - 205. 117. 255. 255 - Registration type
- Direct Allocation
- Record created
- May 18, 1998
- Reallocated to
- Navy Network Information Center (NNIC) (NNICN-1)
- Reallocated
- Aug 15, 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
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 205.107.36.0/24 | AS27066 | NTTCOM | CenturyLink Proxy object | MAINT-JOB | Sep 1, 2016 |
Whois
Registration for this announcement
- Range
- 205.
56. 0. 0 - 205. 117. 255. 255 - Netname
- NETBLK-NIC-BLK1
- Registrant
- Navy Network Information Center (NNIC)
- Organization
- Navy Network Information Center (NNIC) (NNICN-1)
- Org address
- 2465 GUADALCANAL ROAD, VIRGINIA BEACH, VA, 23459
- Org country
- US
- Type
- Reallocated
- Handle
- NET-205-56-0-0-2
- Parent
- NET-205-56-0-0-1
- Created
- Aug 15, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- May 18, 1998
- 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