144.74.128.0/17

AS25978 · Rush University Medical Center

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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:        2024-12-04
OfficePhone:    +1-312-942-4242
Mailbox:        netinfra@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


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:        2025-03-05
OfficePhone:    +1-312-942-4806
FaxPhone:       +1-312-942-4062
Mailbox:        jclukey@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

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

IP Address	ASN	Details
144.74.137.26	AS25978 Rush University Medical Center	`1.48ms` from Chicago, 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
136.144.207.1	AS20857 Signet B.V.	`1.96ms` from Amsterdam, NL
173.236.143.81	AS26347 New Dream Network, LLC	`0.28ms` from Ashburn, US
52.170.59.97	AS8075 Microsoft Corporation	`0.45ms` from Ashburn, US
40.140.147.241	AS7029 Windstream Communications LLC	`13.88ms` from Atlanta, US
190.124.133.1	AS28015 MERCO COMUNICACIONES	`10.38ms` from Buenos Aires, AR
82.129.217.145	AS24835 Vodafone Data	`7.13ms` from Cairo, EG
154.176.101.97	AS8452 TE-AS	`4.65ms` from Cairo, EG
61.157.204.1	AS4134 CHINANET-BACKBONE	`7.60ms` from Chengdu, CN
182.148.152.1	AS4134 CHINANET-BACKBONE	`3.94ms` from Chengdu, CN
92.114.221.1	AS8926 Moldtelecom SA	`1.80ms` from Chisinau, MD
186.64.137.1	AS52228 Cable Tica	`0.88ms` from Curridabat, CR
68.201.188.1	AS11427 Charter Communications Inc	`1.92ms` from Dallas, US
50.58.194.1	AS3549 Level 3 Parent, LLC	`1.42ms` from Dallas, US
170.203.4.1	AS399065 Dixie EPA	`12.78ms` from Dallas, US
103.177.72.1	AS9230 Bangladesh Online Ltd.	`0.66ms` from Dhaka, BD
83.14.254.97	AS5617 Orange Polska Spolka Akcyjna	`2.41ms` from Gdansk, PL
155.105.7.1	AS559 SWITCH	`1.46ms` from Geneve, CH
113.108.149.113	AS4134 CHINANET-BACKBONE	`2.21ms` from Guangzhou, CN
156.241.123.193	AS135097 LUOGELANG (FRANCE) LIMITED	`0.68ms` from Hong Kong, HK
156.253.98.161	AS142286 LUOGELANG (FRANCE) LIMITED	`0.67ms` from Hong Kong, HK
23.149.120.1	AS44324 MoeDove LLC	`0.23ms` from Hong Kong, HK
175.246.66.1	AS4766 Korea Telecom	`5.53ms` from Incheon, KR
139.228.220.1	AS23700 Linknet-Fastnet ASN	`13.40ms` from Jakarta, ID
64.239.104.1	AS14174 North Central Kansas Community Network Co.	`6.90ms` from Kansas City, US
206.222.219.1	AS15108 Allo Communications LLC	`5.55ms` from Lincoln, US

Traceroute

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

traceroute -a -n -q1 -f2 -m10 144.74.138.137

traceroute to 144.74.138.137 (144.74.138.137): 10 hops max, 52 byte packets

2 [AS3356] 8.243.162.77 3.966 ms

3 *

4 *

5 *

6 [AS46887] 144.121.35.159 92.373 ms

7 [AS46887] 144.121.162.254 89.384 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Bogota, CO

On January 19th 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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