156.145.192.0/18

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 156.145.192.0/18

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 are no domains currently hosted on this ASN.

Hosted domains API

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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
105.108.164.34	AS36947 Telecom Algeria	`15.15ms` from Algiers, DZ
69.54.81.2	AS20340 CallTower, Inc.	`0.41ms` from Atlanta, US
223.71.99.18	AS56048 China Mobile Communicaitons Corporation	`3.09ms` from Beijing, CN
84.159.4.194	AS3320 Deutsche Telekom AG	`2.06ms` from Berlin, DE
188.182.247.194	AS3292 TDC Holding A/S	`1.54ms` from Copenhagen, DK
94.205.212.130	AS15802 Emirates Integrated Telecommunications Company PJSC	`2.76ms` from Dubai, AE
54.228.178.146	AS16509 Amazon.com, Inc.	`0.29ms` from Dublin, IE
68.49.100.34	AS7922 Comcast Cable Communications, LLC	`7.22ms` from Flint, US
93.221.168.34	AS3320 Deutsche Telekom AG	`7.94ms` from Frankfurt am Main, DE
93.234.199.130	AS3320 Deutsche Telekom AG	`7.37ms` from Frankfurt am Main, DE
173.8.136.114	AS7922 Comcast Cable Communications, LLC	`5.53ms` from Fremont, US
3.11.19.178	AS16509 Amazon.com, Inc.	`0.15ms` from London, GB
172.251.105.18	AS20001 Charter Communications Inc	`6.20ms` from Los Angeles, US
188.85.40.178	AS12430 VODAFONE ESPANA S.A.U.	`6.91ms` from Madrid, ES
5.181.115.50	AS39855 Mod Mission Critical LLC	`0.14ms` from Madrid, ES
95.253.201.2	AS3269 Telecom Italia S.p.A.	`17.39ms` from Milan, IT
76.180.205.210	AS11351 Charter Communications Inc	`19.04ms` from New York City, US
126.92.191.162	AS17676 SoftBank Corp.	`3.77ms` from Osaka, JP
176.140.88.2	AS5410 Bouygues Telecom SA	`2.25ms` from Paris, FR
73.234.177.82	AS7922 Comcast Cable Communications, LLC	`9.89ms` from Providence, US
18.207.45.226	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
74.95.69.18	AS7922 Comcast Cable Communications, LLC	`7.02ms` from Seattle, US
203.254.182.2	AS1237 KISTI	`3.92ms` from Seoul, KR
65.125.25.146	AS209 CenturyLink Communications, LLC	`2.72ms` from Ashburn, US
12.234.21.194	AS7018 AT&T Enterprises, LLC	`16.08ms` from Atlanta, US

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 156.145.221.39

traceroute to 156.145.221.39 (156.145.221.39): 8 hops max, 52 byte packets

4 [AS3356] 4.69.219.114 87.248 ms

5 [AS3356] 4.4.200.98 87.1 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Coventry, GB

On January 18th 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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