Data as of Nov 11, 2026
55.23.0.0/16
No anonymizer space · no proxy exits in 30 daysTnet Broadband Internet · space held by United States Department of Defense (DoD)
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Recent change
New origin Aug 2026
from AS379 Air Force Systems Networking, after 9.1 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 55.0.0.0/8 | AS721 | Business | United States Department of Defense (DoD) via Headquarters, USAISC |
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 |
|---|---|---|---|---|
| 55.23.8.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.9.0/24 since Mar 2026 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.11.0/24 since Mar 2026 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.22.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.23.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.25.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.27.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.28.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.29.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.31.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.33.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.35.0/24 since Jan 2022 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.103.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.129.0/24 since Dec 2019 | AS349 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 55.23.182.0/24 since Dec 2019 | AS349 | 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 |
|---|---|---|---|---|---|---|
| 55.0.0.0/8 | 16,777,216 | CONUS-RCAS | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 26, 1996 | disa. |
| └ 55.0.0.0/8 | 16,777,216 | CONUS-RCAS | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 20, 2025 | — |
| └ 55.23.0.0/16 | 65,536 | ARNG-LA-NET | National Guard Bureau (C11553543) · US | Reassigned | Mar 25, 2026 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 55.
0. 0. 0/ 8 - Registration type
- Direct Allocation
- Record created
- Oct 26, 1996
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 20, 2025
Origin network
AS32000
US
- Name
- Tnet Broadband Internet
- Type
- Internet provider
- Registered
- Nov 16, 2017
- Domain
- tnet.biz
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 4
- Last change of origin
- Aug 2026
Recorded history
History
- Handoffs
- 5
Whois
Registration for this announcement
- Range
- 55.
23. 0. 0/ 16 - Netname
- ARNG-LA-NET
- Registrant
- National Guard Bureau
- Organization
- National Guard Bureau (C11553543)
- Type
- Reassigned
- Handle
- NET-55-23-0-0-1
- Parent
- NET-55-0-0-0-2
- Created
- Mar 25, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 26, 1996
- Status
- assigned
Report abuse
Abuse contact
- disa.
columbus. ns. mbx. arin-registrations@ mail. mil - Name
- Registration
- Phone
- +1-844-347-2457
- Handle
- REGIS10-ARIN