Data as of Nov 9, 2026
140.251.192.0/18
No anonymizer space · no proxy exits in 30 daysNewYork-Presbyterian Hospital · space held by Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Recent change
New origin Sep 18, 2026
from AS395139 NewYork-Presbyterian Hospital, after 1.5 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 140.251.128.0/17 since Oct 2016 | AS395139 | Business | Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 140.251.192.0/19 since Mar 2025 | AS395139 | Business | Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University | |
| 140.251.224.0/19 since Mar 2025 | AS395139 | Business | Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University |
Network & registry
Origin network
AS395139
US
- Name
- NewYork-Presbyterian Hospital
- Type
- Business
- Registered
- Sep 7, 2016
- Domain
- nyp.org
- Industry
- Retail Stores, Wholesale, and E-commerce Sites
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 2016
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS395139 | RADB | NewYork-Presbyterian Hospital | MAINT-AS395139 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 140.
251. 0. 0/ 16 - Netname
- CUMC
- Registrant
- Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University
- Organization
- Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University (JOANAN)
- Org address
- 1300 York Avenue, New York, NY, 10065
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-140-251-0-0-1
- Parent
- NET-140-0-0-0-0
- Created
- Jun 29, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 29, 1990
- Status
- assigned
Report abuse
Abuse contact
- abuse@
med. cornell. edu - Name
- Information Security Abuse Response
- Phone
- +1-212-746-4878
- Handle
- ISAR-ARIN