Data as of Nov 7, 2026
138.50.0.0/16
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 |
|---|---|---|---|---|
| 138.50.0.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.2.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.4.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.6.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.8.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.10.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.14.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.15.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.17.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.18.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.19.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.40.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.42.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.44.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.46.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.48.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.50.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.52.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.53.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.64.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.65.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.66.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.67.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.68.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.70.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.72.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.73.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.74.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.75.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.96.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.97.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.98.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.104.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.106.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.108.0/23 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.110.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.111.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 138.50.112.0/24 since Oct 21, 2026 | AS1540 | Business | United States Department of Defense (DoD) via Headquarters, USAISC |
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 |
|---|---|---|---|---|---|---|
| 138.50.0.0/16 | 65,536 | USAREUR69E | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Feb 6, 1990 | disa. |
| └ 138.50.0.0/16 | 65,536 | USAREUR69E | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 21, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 138.
50. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Feb 6, 1990
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 21, 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
- May 2005
- Current origin since
- Mar 2024 · 2.6 yr
- Origin networks
- 3
- Last change of origin
- Mar 2024
Recorded history
History
- Handoffs
- 2
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 138.50.174.0/24 | AS270662 | NTTCOM | CIDR allocated from Cogent to SEMPPRE ONLINE INTERNET LTDA | MAINT-262476 | Jun 21, 2022 |
Whois
Registration for this announcement
- Range
- 138.
50. 0. 0/ 16 - Netname
- USAREUR69E
- Registrant
- Headquarters, USAISC
- Organization
- Headquarters, USAISC (HEADQU-3)
- Org address
- NETC-ANC CONUS TNOSC, Fort Huachuca, AZ, 85613
- Org country
- US
- Type
- Reallocated
- Handle
- NET-138-50-0-0-2
- Parent
- NET-138-50-0-0-1
- Created
- Aug 21, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 6, 1990
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN