156.145.0.0/18

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:      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:        2025-03-05
OfficePhone:    +1-212-305-3855
Mailbox:        [email protected]
Mailbox:        [email protected]
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:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 156.145.0.0/18

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 is 1 domain name hosted across 1 IP address 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

1 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
156.145.32.24	AS395139 NewYork-Presbyterian Hospital	`8.89ms` from Ashburn, US

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
213.148.8.50	AS48988 Modern Server Solutions LLP	`0.67ms` from Almaty, KZ
195.200.16.18	AS216071 SERVERS TECH FZCO	`0.53ms` from Amsterdam, NL
34.195.53.2	AS14618 Amazon.com, Inc.	`0.54ms` from Ashburn, US
79.196.208.66	AS3320 Deutsche Telekom AG	`2.85ms` from Frankfurt am Main, DE
113.0.50.226	AS4837 CHINA UNICOM China169 Backbone	`1.51ms` from Harbin, CN
14.136.17.162	AS9269 Hong Kong Broadband Network Ltd.	`0.63ms` from Hong Kong, HK
184.186.82.2	AS22773 Cox Communications Inc.	`6.61ms` from Kansas City, US
86.165.56.82	AS2856 British Telecommunications PLC	`2.51ms` from London, GB
88.1.30.210	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.15ms` from Madrid, ES
92.127.44.226	AS12389 PJSC Rostelecom	`9.43ms` from Novosibirsk, RU
67.78.168.146	AS33363 Charter Communications, Inc	`2.31ms` from Orlando, US
92.203.120.34	AS2527 Sony Network Communications Inc.	`10.18ms` from Osaka, JP
34.13.199.178	AS396982 Google LLC	`0.11ms` from Oudeschip, NL
124.134.202.114	AS4837 CHINA UNICOM China169 Backbone	`6.24ms` from Qingdao, CN
46.147.88.178	AS42116 JSC ER-Telecom Holding	`11.61ms` from Samara, RU
106.173.22.178	AS2516 KDDI CORPORATION	`1.28ms` from Tokyo, JP
196.184.99.130	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`13.66ms` from Tunis, TN
73.173.249.194	AS7922 Comcast Cable Communications, LLC	`7.43ms` from Washington, US
209.165.183.2	AS8047 GENERAL COMMUNICATION, INC.	`1.12ms` from Anchorage, US
44.207.253.210	AS14618 Amazon.com, Inc.	`0.58ms` from Ashburn, US
83.218.10.98	AS15766 Domicilium (IOM) Limited	`1.00ms` from Ballasalla, IM
115.182.199.98	AS4847 China Networks Inter-Exchange	`2.17ms` from Beijing, CN
52.251.92.114	AS8075 Microsoft Corporation	`0.20ms` from Boydton, US
58.171.208.2	AS1221 Telstra Limited	`8.18ms` from Brisbane, AU
196.251.56.226	AS328471 HERO TELECOMS (PTY) LTD	`2.20ms` from Cape Town, ZA

Traceroute

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

traceroute -a -n -q1 -f3 -m7 156.145.48.172

traceroute to 156.145.48.172 (156.145.48.172): 7 hops max, 52 byte packets

3 [AS3356] 4.69.219.114 10.121 ms

4 [AS3356] 4.4.200.98 9.871 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Charlotte, US

On December 29th 2025

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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