146.203.144.0/22

AS11452 · Mount Sinai School of Medicine

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	United States
Domain	mssm.edu
ASN	AS11452
Registry	ARIN
ID	MSSMEDU-1

WHOIS Details

NetHandle:      NET-146-203-0-0-1
OrgID:          MSSM
Parent:         NET-146-0-0-0-0
NetName:        MSSMEDU-1
NetRange:       146.203.0.0 - 146.203.255.255
NetType:        allocation
OriginAS:       11452
RegDate:        1991-02-28
Updated:        2021-12-14
TechHandle:     AP412-ARIN
AbuseHandle:    NETWO2964-ARIN
NOCHandle:      NETWO2964-ARIN
Source:         ARIN


OrgID:          MSSM
OrgName:        Mount Sinai School of Medicine
CanAllocate:    
Street:         One Gustave L. Levy Place
Street:         Mailstop 1102
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10029-6574
RegDate:        1991-02-28
Updated:        2023-06-20
OrgAdminHandle: LAWRE33-ARIN
OrgTechHandle:  AP412-ARIN
OrgTechHandle:  GUNTH50-ARIN
OrgAbuseHandle: AP412-ARIN
OrgNOCHandle:   AP412-ARIN
OrgNOCHandle:   CRUZO-ARIN
Source:         ARIN


POCHandle:      NETWO2964-ARIN
IsRole:         Y
LastName:       Network Operations
FirstName:      
Street:         One Gustave L. Levy Place
Street:         Mailstop #1102
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10029-6574
RegDate:        2009-02-24
Updated:        2018-12-14
OfficePhone:    +1-212-241-7091
Mailbox:        abuse@mssm.edu
Source:         ARIN


POCHandle:      LAWRE33-ARIN
IsRole:         N
LastName:       Lawrence
FirstName:      Paul
Street:         One Gustave L. Levy Place
Street:         MS# 1102
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10029
RegDate:        2013-07-11
Updated:        2022-09-06
OfficePhone:    +1-212-241-7892
FaxPhone:       +1-212-242-4925
Mailbox:        paul.lawrence@mssm.edu
Source:         ARIN


POCHandle:      GUNTH50-ARIN
IsRole:         N
LastName:       Gunther
FirstName:      Doug
Street:         150 East 42nd Street Floor 3
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10017
RegDate:        2023-06-16
Updated:        2024-08-08
OfficePhone:    +1-212-814-4541
MobilePhone:    +1-212-814-4541
Mailbox:        doug.gunther@mountsinai.org
Source:         ARIN


POCHandle:      AP412-ARIN
IsRole:         N
LastName:       Pizzimenti
FirstName:      Andrew
Street:         One Gustave L. Levy Place
Street:         MS# 1102
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10029-6574
RegDate:        1995-11-29
Updated:        2024-08-08
OfficePhone:    +1-212-241-4929
MobilePhone:    +1-917-459-9302
FaxPhone:       +1-212-241-4925
Mailbox:        andrew.pizzimenti@mssm.edu
Source:         ARIN


POCHandle:      CRUZO-ARIN
IsRole:         N
LastName:       Cruz
FirstName:      Orquidia
Street:         Levy Library
Street:         One Gustave L. Levy Place
Street:         MS# 1102
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10029-6574
RegDate:        2013-07-24
Updated:        2022-09-07
OfficePhone:    +1-212-241-6671
MobilePhone:    +1-646-201-6425
FaxPhone:       +1-212-241-4925
Mailbox:        Orquidia.Cruz@mssm.edu
Source:         ARIN

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

Read more

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
128.135.90.182	AS160 The University of Chicago	`1.59ms` from Chicago, US
179.223.148.150	AS28573 Claro NXT Telecomunicacoes Ltda	`11.21ms` from Curitiba, BR
47.223.41.54	AS19108 Optimum	`7.58ms` from Dallas, US
73.127.212.118	AS7922 Comcast Cable Communications, LLC	`15.66ms` from Denver, US
72.152.90.166	AS8075 Microsoft Corporation	`0.21ms` from Des Moines, US
68.43.99.150	AS7922 Comcast Cable Communications, LLC	`6.53ms` from Flint, US
91.89.253.102	AS3209 Vodafone GmbH	`8.68ms` from Frankfurt am Main, DE
162.234.155.134	AS7018 AT&T Enterprises, LLC	`2.90ms` from Los Angeles, US
81.95.132.22	AS25227 JSC Avantel	`0.68ms` from Moscow, RU
68.192.41.134	AS6128 Cablevision Systems Corp.	`9.50ms` from New York City, US
73.198.239.150	AS7922 Comcast Cable Communications, LLC	`6.74ms` from New York City, US
126.241.42.86	AS17676 SoftBank Corp.	`4.26ms` from Osaka, JP
52.45.38.150	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
52.203.254.166	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
69.115.233.38	AS6128 Cablevision Systems Corp.	`9.73ms` from Secaucus, US
36.228.86.230	AS3462 Data Communication Business Group	`2.27ms` from Taipei, TW
218.28.102.22	AS4837 CHINA UNICOM China169 Backbone	`3.48ms` from Zhengzhou, CN
52.232.96.70	AS8075 Microsoft Corporation	`0.20ms` from Amsterdam, NL
102.41.161.6	AS8452 TE-AS	`5.63ms` from Cairo, EG
116.2.62.230	AS4837 CHINA UNICOM China169 Backbone	`14.33ms` from Liaoyang, CN
165.225.226.134	AS53813 ZSCALER, INC.	`0.09ms` from Melbourne, AU
220.175.187.38	AS4134 CHINANET-BACKBONE	`4.10ms` from Nanchang, CN
180.221.163.166	AS9617 JCOM Co., Ltd.	`3.37ms` from Osaka, JP
189.112.235.214	AS16735 ALGAR TELECOM S/A	`1.39ms` from Osasco, BR
70.190.67.118	AS22773 Cox Communications Inc.	`4.68ms` from Phoenix, US

Traceroute

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

traceroute -a -n -q1 -m5 146.203.147.43

traceroute to 146.203.147.43 (146.203.147.43): 5 hops max, 52 byte packets

1 [AS51395] 176.10.111.2 0.325 ms

2 [AS51395] 91.201.58.121 0.978 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Zug, CH

On August 22nd 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales