Data as of Nov 10, 2026
38.123.144.0/22
No anonymizer space · no proxy exits in 30 daysYuma Regional Medical Center · space held by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | AS174 | Internet provider | IP broker Rackdog (part) | 401,849 78,907 always on | Cogent Communications, LLC |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 38.123.144.0/23 since Mar 2026 | AS395102 | Business | Cogent Communications, LLC via Yuma Regional Medical Center |
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 |
|---|---|---|---|---|---|---|
| 38.0.0.0/8 | 16,777,216 | COGENT-A | Cogent Communications, LLC (COGC) · US | Direct Allocation | Apr 16, 1991 | abuse@ |
| └ 38.123.144.0/23 | 512 | YUMA-REGIONAL-MEDICAL-CGNT-NET-1 | Yuma Regional Medical Center (YRMC) · US | Reallocated | Jul 21, 2026 | — |
| └ 38.123.146.0/23 | 512 | YUMA-REGIONAL-MEDICAL-CGNT-NET-2 | unknown | — | — | — |
Network & registry
Origin network
AS395102
US
- Name
- Yuma Regional Medical Center
- Type
- Business
- Registered
- Apr 15, 2016
- Domain
- yumaregional.org
- Industry
- Community Groups and Nonprofits
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2026
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS395102 | RADB | Yuma Regional - Onvida | MAINT-AS17054 | Aug 11, 2026 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 38.123.146.0/23 | AS395102 | RADB | Route Registered for Cogent Communications Customer - Yuma Regional Medical Center | MAINT-AS174 | Dec 31, 2025 |
Whois
Registration for this announcement
- Range
- 38.
0. 0. 0/ 8 - Netname
- COGENT-A
- Registrant
- Cogent Communications, LLC
- Organization
- Cogent Communications, LLC (COGC)
- Org address
- 2450 N Street NW, Washington, DC, 20037
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-38-0-0-0-1
- Created
- Apr 16, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 16, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN