Data as of Nov 9, 2026
155.139.115.0/24
No anonymizer space · no proxy exits in 30 daysTenet HealthSystem Medical, Inc.
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 155.139.112.0/21 since Jun 2023 | AS25609 | Business | Tenet HealthSystem Medical, Inc. |
Network & registry
Origin network
AS19398
US
- Name
- Tenet HealthSystem Medical, Inc.
- Type
- Business
- Registered
- Mar 7, 2023
- Domain
- tenethealth.com
- Industry
- Service
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2026
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS19398 | RADB | GTT Global Telecom & Technology | MAINT-AS27506 | Jul 24, 2026 |
Whois
Registration for this announcement
- Range
- 155.
139. 0. 0/ 16 - Netname
- THM36Z-NETWORK1
- Registrant
- Tenet HealthSystem Medical, Inc.
- Organization
- Tenet HealthSystem Medical, Inc. (THM-36-Z)
- Org address
- 14201 Dallas Parkway, Dallas, TX, 75254
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-155-139-0-0-1
- Parent
- NET-155-0-0-0-0
- Created
- Nov 12, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 12, 1991
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN