156.145.0.0/17

AS395139 · NewYork-Presbyterian Hospital

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Summary

Country	United States
Domain	columbia.edu
ASN	AS395139
Parent Range	156.145.0.0/16
Registry	ARIN
ID	CPMC2

WHOIS Details

NetHandle:      NET-156-145-0-0-1
OrgID:          CMC-28
Parent:         NET-156-0-0-0-0
NetName:        CPMC2
NetRange:       156.145.0.0 - 156.145.255.255
NetType:        allocation
RegDate:        1992-03-25
Updated:        2021-12-14
Source:         ARIN


OrgID:          CMC-28
OrgName:        The Trustees of Columbia University in the City of New York
CanAllocate:    
Street:         630 West 168th Street
Street:         PH-18 Room 106
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10032
RegDate:        1992-01-06
Updated:        2014-06-02
OrgAdminHandle: NOC18033-ARIN
OrgTechHandle:  NOC18033-ARIN
OrgAbuseHandle: ZN80-ARIN
OrgNOCHandle:   NOC18033-ARIN
Source:         ARIN


POCHandle:      NOC18033-ARIN
IsRole:         Y
LastName:       Network Operations Center
FirstName:      
Street:         650 West 168th Street
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10032
RegDate:        2013-12-09
Updated:        2025-05-01
OfficePhone:    +1-212-305-3855
OfficePhone:    +1-212-305-9021
Mailbox:        core-mgrs@nyp.org
Source:         ARIN


POCHandle:      ZN80-ARIN
IsRole:         Y
LastName:       New York Presbyterian Hospital
FirstName:      
Street:         525 East 68th Street
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10065
RegDate:        2001-09-10
Updated:        2026-03-05
OfficePhone:    +1-212-305-3855
Mailbox:        core-mgrs@nyp.org
Mailbox:        spam@nyp.org
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 156.145.0.0/17

Range	ASN	Company	Num of IPs
156.145.0.0/16	AS395139	The Trustees of Columbia University in the City of New York	65,536

Nearby Ranges

BGP prefixes that overlap with 156.145.0.0/16

Range	ASN	Company	Num of IPs
156.145.0.0/16	AS395139	The Trustees of Columbia University in the City of New York	65,536

Hosted domains

There are 13 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
80.57.100.1	AS33915 Vodafone Libertel B.V.	`3.87ms` from Amsterdam, NL
94.211.47.1	AS33915 Vodafone Libertel B.V.	`2.28ms` from Amsterdam, NL
85.147.5.1	AS33915 Vodafone Libertel B.V.	`5.50ms` from Amsterdam, NL
23.245.24.1	AS11776 Breezeline	`4.01ms` from Ashburn, US
50.110.72.241	AS5650 Frontier Communications of America, Inc.	`7.32ms` from Ashburn, US
71.12.194.1	AS20115 Charter Communications LLC	`11.77ms` from Atlanta, US
168.24.130.1	AS3479 Board of Regents of the University System of Georgia	`0.89ms` from Atlanta, US
200.118.164.1	AS10620 Telmex Colombia S.A.	`10.58ms` from Bogota, CO
177.254.176.1	AS27831 Colombia Móvil	`4.33ms` from Bogota, CO
186.147.244.1	AS10620 Telmex Colombia S.A.	`7.42ms` from Bogotá, CO
77.146.174.1	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`11.78ms` from Bordeaux, FR
181.16.210.1	AS52323 Colsecor Cooperativa Limitada	`13.67ms` from Buenos Aires, AR
118.114.140.1	AS4134 CHINANET BACKBONE	`5.67ms` from Chengdu, CN
222.182.113.1	AS4134 CHINANET BACKBONE	`1.39ms` from Chongqing, CN
186.138.48.1	AS7303 Telecom Argentina S.A.	`0.76ms` from Cordoba, AR
74.194.119.1	AS19108 Optimum	`6.78ms` from Dallas, US
63.235.11.49	AS209 CenturyLink Communications, LLC	`9.53ms` from Denver, US
178.152.127.1	AS8781 Ooredoo Q.S.C.	`0.23ms` from Doha, QA
88.69.240.1	AS3209 Vodafone GmbH	`0.43ms` from Frankfurt am Main, DE
36.249.117.241	AS4837 CHINA UNICOM China169 Backbone	`5.32ms` from Fuzhou, CN
222.172.173.1	AS4134 CHINANET BACKBONE	`8.84ms` from Guiyang, CN
150.109.49.65	AS132203 Tencent Building, Kejizhongyi Avenue	`0.40ms` from Hong Kong, HK
49.0.58.1	AS400318 Versa Networks, Inc.	`0.20ms` from Hong Kong, HK
116.43.13.1	AS17858 LG POWERCOMM	`1.56ms` from Incheon, KR
223.131.133.1	AS38103 SK Broadband Co Ltd	`1.39ms` from Incheon, KR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f4 -m8 156.145.18.134

traceroute to 156.145.18.134 (156.145.18.134): 8 hops max, 52 byte packets

4 [AS3356] 4.69.219.114 114.485 ms

5 [AS3356] 4.36.4.178 100.958 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Girona, ES

On April 13th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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