156.111.228.0/24

AS395139 · NewYork-Presbyterian Hospital

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Summary

Country	United States
Domain	columbia.edu
ASN	AS395139
Parent Range	156.111.0.0/16
Registry	ARIN
ID	CPMC

WHOIS Details

NetHandle:      NET-156-111-0-0-1
OrgID:          CMC-28
Parent:         NET-156-0-0-0-0
NetName:        CPMC
NetRange:       156.111.0.0 - 156.111.255.255
NetType:        allocation
RegDate:        1992-01-06
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 156.111.228.0/24

Range	ASN	Company	Num of IPs
156.111.0.0/16	AS395139	The Trustees of Columbia University in the City of New York	65,536

Nearby Ranges

BGP prefixes that overlap with 156.111.0.0/16

Range	ASN	Company	Num of IPs
156.111.0.0/16	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

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
73.188.4.24	AS7922 Comcast Cable Communications, LLC	`8.87ms` from Ashburn, US
97.223.16.8	AS6167 Verizon Business	`12.86ms` from Chicago, US
3.23.37.136	AS16509 Amazon.com, Inc.	`0.16ms` from Columbus, US
59.42.40.88	AS4134 CHINANET BACKBONE	`3.56ms` from Guangzhou, CN
123.203.184.104	AS9269 Hong Kong Broadband Network Ltd.	`1.15ms` from Hong Kong, HK
109.152.119.104	AS2856 British Telecommunications PLC	`8.41ms` from London, GB
84.187.67.56	AS3320 Deutsche Telekom AG	`4.05ms` from Munich, DE
126.4.145.104	AS17676 SoftBank Corp.	`2.82ms` from Osaka, JP
39.72.33.120	AS4837 CHINA UNICOM China169 Backbone	`3.33ms` from Qingdao, CN
121.180.152.56	AS4766 Korea Telecom	`9.29ms` from Seoul, KR
94.140.59.136	AS12552 GlobalConnect AB	`1.53ms` from Stockholm, SE
176.69.181.248	AS1257 Tele2 Sverige AB	`9.84ms` from Stockholm, SE
73.184.246.216	AS7922 Comcast Cable Communications, LLC	`5.05ms` from Atlanta, US
67.197.212.248	AS14615 Comporium, Inc	`6.40ms` from Durham, US
123.157.163.136	AS4837 CHINA UNICOM China169 Backbone	`11.75ms` from Hangzhou, CN
58.177.0.184	AS9269 Hong Kong Broadband Network Ltd.	`0.49ms` from Hong Kong, HK
84.71.153.216	AS5378 Vodafone Limited	`5.64ms` from London, GB
70.51.43.120	AS577 Bell Canada	`4.58ms` from Montreal, CA
68.173.0.168	AS12271 Charter Communications Inc	`8.09ms` from New York City, US
86.62.18.168	AS49505 JSC Selectel	`0.98ms` from Saint Petersburg, RU
115.6.216.232	AS4766 Korea Telecom	`7.86ms` from Seoul, KR
109.64.108.88	AS8551 Bezeq International Ltd.	`1.29ms` from Tel Aviv, IL
93.115.120.136	AS58224 Iran Telecommunication Company PJS	`17.17ms` from Yerevan, AM
178.89.83.184	AS9198 JSC Kazakhtelecom	`14.37ms` from Almaty, KZ
35.83.64.152	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US

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 156.111.228.104

traceroute to 156.111.228.104 (156.111.228.104): 7 hops max, 52 byte packets

3 [AS3356] 4.69.219.114 114.69 ms

4 [AS3356] 4.36.4.154 113.839 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Rio de Janeiro, BR

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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