Data as of Nov 12, 2026
151.152.99.0/24
No anonymizer space · no proxy exits in 30 daysCity of Hope Medical Center · space held by City of Hope National Medical Center
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 151.152.96.0/19 since Mar 2017 | AS11687 | Business | City of Hope National Medical Center |
Network & registry
Origin network
AS11687
US
- Name
- City of Hope Medical Center
- Type
- Business
- Registered
- Nov 16, 1998
- Domain
- coh.org
- Industry
- Hospitals and Medical Centers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2016
- Current origin since
- Mar 2016 · 11 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS11687 | RADB | RR-RC-CITY OF HOPE-West | MAINT-RR | Jun 26, 2026 |
Whois
Registration for this announcement
- Range
- 151.
152. 0. 0/ 16 - Netname
- COH
- Registrant
- City of Hope National Medical Center
- Organization
- City of Hope National Medical Center (CHMC-3)
- Org address
- 1500 E. Duarte Road, Duarte, CA, 91010
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-151-152-0-0-1
- Parent
- NET-151-0-0-0-0
- Created
- Jul 30, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 30, 1991
- Status
- assigned
Report abuse
Abuse contact
- ARIN-POC@
coh. org - Name
- Information Technology Services POC
- Phone
- +1-626-256-4673
- Handle
- ITSP-ARIN