Data as of Nov 6, 2026
156.111.0.0/16
7 residential-proxy exits · 30 daysNewYork-Presbyterian Hospital · space held by The Trustees of Columbia University in the City of New York
Residential-proxy exits
Proxy exits
7
0.01% of its addresses · 30 days
Spread
2 of 256
/24s with at least one exit
Providers
16
selling exits here
Oct 7, 2026 – Nov 5, 2026
Exits seen per day
577 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 156.111.111.0/24 | 0 | 4 | |
| 156.111.109.0/24 | 0 | 3 |
Proxy providers listing exits
- 2Captcha
- AnyIP
- BirdProxies
- BottingTools
- ByteProxies
- Byteful
- ColaProxy
- FloppyData
- Geonode
- GonzoProxy
- Infatica
- KocerRoxy
- LemonBright
- ProxyEmpire
- Thordata
- VitalExclusive
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 156.111.0.0/17 since Oct 2016 | AS395139 | Business | 7 | The Trustees of Columbia University in the City of New York | |
| 156.111.0.0/18 since Mar 2025 | AS395139 | Business | The Trustees of Columbia University in the City of New York | ||
| 156.111.64.0/18 since Mar 2025 | AS395139 | Business | 7 | The Trustees of Columbia University in the City of New York | |
| 156.111.128.0/17 since Sep 18, 2026 | AS395139 | Business | The Trustees of Columbia University in the City of New York | ||
| 156.111.128.0/18 since Mar 2025 | AS395139 | Business | The Trustees of Columbia University in the City of New York | ||
| 156.111.192.0/18 since Jun 2026 | AS395139 | Business | The Trustees of Columbia University in the City of New York | ||
| 156.111.228.0/24 since May 2024 | AS395139 | Business | The Trustees of Columbia University in the City of New York |
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
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Oct 2016 · 10 yr
- Origin networks
- 2
- Last change of origin
- Oct 2016
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 156.
111. 0. 0/ 16 - Netname
- CPMC
- Registrant
- The Trustees of Columbia University in the City of New York
- Organization
- The Trustees of Columbia University in the City of New York (CMC-28)
- Org address
- 630 West 168th Street, New York, NY, 10032
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-156-111-0-0-1
- Parent
- NET-156-0-0-0-0
- Created
- Jan 6, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 6, 1992
- Status
- assigned
Report abuse
Abuse contact
- spam@
nyp. org - Name
- New York Presbyterian Hospital
- Phone
- +1-212-305-3855
- Handle
- ZN80-ARIN