144.74.20.0/23

AS25978 · Rush University Medical Center

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

Summary

Country	United States
Domain	rush.edu
ASN	AS25978
Registry	ARIN
ID	RUSHNET

WHOIS Details

NetHandle:      NET-144-74-0-0-1
OrgID:          RPLMC
Parent:         NET-144-0-0-0-0
NetName:        RUSHNET
NetRange:       144.74.0.0 - 144.74.255.255
NetType:        allocation
RegDate:        1990-11-16
Updated:        2021-12-14
Source:         ARIN


OrgID:          RPLMC
OrgName:        Rush University Medical Center
CanAllocate:    
Street:         1653 W. Congress Parkway
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60612
RegDate:        1990-11-16
Updated:        2024-12-04
OrgAdminHandle: MNS12-ARIN
OrgTechHandle:  CLUKE-ARIN
OrgAbuseHandle: KLO1-ARIN
Source:         ARIN


POCHandle:      MNS12-ARIN
IsRole:         Y
LastName:       Manager of Network Services
FirstName:      
Street:         1700 W Van Buren
Street:         Suite 374
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60612
RegDate:        2007-10-02
Updated:        2026-04-07
OfficePhone:    +1-312-942-4242
Mailbox:        netinfra@rush.edu
Source:         ARIN


POCHandle:      CLUKE-ARIN
IsRole:         N
LastName:       Clukey
FirstName:      Jay
Street:         1700 W. Van Buren
Street:         Ste. 374
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60612
RegDate:        2013-04-08
Updated:        2026-03-05
OfficePhone:    +1-312-942-4806
FaxPhone:       +1-312-942-4062
Mailbox:        jclukey@rush.edu
Source:         ARIN


POCHandle:      KLO1-ARIN
IsRole:         N
LastName:       ODER
FirstName:      KARL
Street:         RUSH PRESBYTERIAN
Street:         1700 WEST VAN BUREN
City:           CHICAGO
State/Prov:     IL
Country:        US
PostalCode:     60612
RegDate:        2000-10-31
Updated:        2019-12-20
OfficePhone:    +1-312-942-8940
FaxPhone:       +1-312-563-8607
Mailbox:        koder@rush.edu
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 144.74.0.0/16

No nearby ranges found.

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
50.237.43.71	AS7922 Comcast Cable Communications, LLC	`1.69ms` from Chicago, US
51.24.50.231	AS16509 Amazon.com, Inc.	`0.19ms` from London, GB
109.213.32.7	AS3215 Orange S.A.	`14.39ms` from Lyon, FR
101.181.12.7	AS1221 Telstra Limited	`4.35ms` from Melbourne, AU
179.25.54.23	AS6057 Administracion Nacional de Telecomunicaciones	`3.57ms` from Montevideo, UY
47.115.70.199	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.93ms` from Shenzhen, CN
136.110.13.247	AS396982 Google LLC	`0.15ms` from Singapore, SG
110.77.132.87	AS131090 National Telecom Public Company Limited	`1.77ms` from Bangkok, TH
73.161.179.23	AS7922 Comcast Cable Communications, LLC	`8.86ms` from Flint, US
1.30.41.119	AS139007 UNICOM InnerMongolia province network	`5.44ms` from Hohhot, CN
76.86.153.231	AS20001 Charter Communications Inc	`5.80ms` from Los Angeles, US
95.167.210.119	AS12389 PJSC Rostelecom	`15.49ms` from Moscow, RU
168.199.195.39	AS211192 NetWave Inc.	`1.64ms` from Murfreesboro, US
185.203.215.103	AS34347 HALLAG Kommunal GmbH	`2.88ms` from Schaan, LI
78.21.253.39	AS6848 Telenet BV	`6.56ms` from Brussels, BE
76.155.107.23	AS7922 Comcast Cable Communications, LLC	`2.88ms` from Denver, US
3.71.192.55	AS16509 Amazon.com, Inc.	`0.36ms` from Frankfurt am Main, DE
63.183.102.103	AS16509 Amazon.com, Inc.	`0.42ms` from Frankfurt am Main, DE
112.155.186.23	AS17858 LG POWERCOMM	`2.12ms` from Incheon, KR
5.128.114.39	AS31200 Novotelecom Ltd	`1.58ms` from Novosibirsk, RU
101.140.195.135	AS17511 OPTAGE Inc.	`2.61ms` from Osaka, JP
195.146.111.119	AS25512 CD-Telematika a.s.	`1.37ms` from Prague, CZ
44.195.65.247	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
173.69.52.247	AS701 Verizon Business	`1.99ms` from Boston, US
77.184.154.231	AS6805 Telefonica Germany GmbH & Co.OHG	`2.63ms` from Frankfurt am Main, DE

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 144.74.20.50

traceroute to 144.74.20.50 (144.74.20.50): 7 hops max, 52 byte packets

3 [AS56911] 185.169.236.252 31.493 ms

4 [AS2128] 185.6.36.141 30.226 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Milan, IT

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.

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