Data as of Nov 12, 2026
153.23.136.0/23
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 153.23.0.0/16 since Dec 2010 | AS721 | Business | United States Department of Defense (DoD) via Air Force Systems Networking |
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 |
|---|---|---|---|---|---|---|
| 153.23.0.0/16 | 65,536 | CENTAF03 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Sep 23, 1991 | disa. |
| └ 153.23.0.0/16 | 65,536 | CENTAF03 | Air Force Systems Networking (7ESG) · US | Reallocated | Aug 19, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 153.
23. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Sep 23, 1991
- Legacy
- yes
- Reallocated to
- Air Force Systems Networking (7ESG)
- Reallocated
- Aug 19, 2025
Origin network
AS6035
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Registered
- Oct 24, 1995
- Domain
- mail.mil
- Industry
- Military, Defense, National Security, and International Affairs
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2015
- Current origin since
- Oct 2016 · 10 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 153.
23. 0. 0/ 16 - Netname
- CENTAF03
- Registrant
- Air Force Systems Networking
- Organization
- Air Force Systems Networking (7ESG)
- Org address
- 501 EAST MOORE DR. BLDG 884 RM 1100 GUNTHER ANNEX, MAXWELL AFB, AL, 36114
- Org country
- US
- Type
- Reallocated
- Handle
- NET-153-23-0-0-2
- Parent
- NET-153-23-0-0-1
- Created
- Aug 19, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 23, 1991
- 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