Data as of Nov 8, 2026
143.104.1.0/24
No anonymizer space · no proxy exits in 30 daysNewYork-Presbyterian Hospital
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Sep 18, 2026
from AS395139 NewYork-Presbyterian Hospital, after 3.1 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 143.104.0.0/17 since Oct 2016 | AS395139 | Business | 17 1 always on | NewYork-Presbyterian Hospital | |
| 143.104.0.0/16 since Oct 2016 | AS395139 | Business | 17 1 always on | NewYork-Presbyterian Hospital |
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 2022
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 143.
104. 0. 0/ 16 - Netname
- NYHEDU
- Registrant
- NewYork-Presbyterian Hospital
- Organization
- NewYork-Presbyterian Hospital (NYPH-1)
- Org address
- 525 East 68th Street, New York, NY, 10065
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-143-104-0-0-1
- Parent
- NET-143-0-0-0-0
- Created
- Mar 26, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 26, 1990
- Status
- assigned
Report abuse
Abuse contact
- spam@
nyp. org - Name
- New York Presbyterian Hospital
- Phone
- +1-212-305-3855
- Handle
- ZN80-ARIN