146.189.25.0/24

AS5724 · University of Massachusetts Medical School

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Summary

Country	United States
Domain	umassmed.edu
ASN	AS5724
Parent Range	146.189.0.0/16
Registry	ARIN
ID	UMASSMED

WHOIS Details

NetHandle:      NET-146-189-0-0-1
OrgID:          UMMC-1-Z
Parent:         NET-146-0-0-0-0
NetName:        UMASSMED
NetRange:       146.189.0.0 - 146.189.255.255
NetType:        allocation
RegDate:        1991-02-26
Updated:        2023-07-01
TechHandle:     HOSTE28-ARIN
Source:         ARIN


OrgID:          UMMC-1-Z
OrgName:        University of Massachusetts Medical School
CanAllocate:    
Street:         55 Lake Avenue North
City:           Worcester
State/Prov:     MA
Country:        US
PostalCode:     01655
RegDate:        2023-06-20
Updated:        2023-06-20
OrgAdminHandle: HOSTE28-ARIN
OrgTechHandle:  HOSTE28-ARIN
OrgAbuseHandle: HOSTE28-ARIN
OrgNOCHandle:   HOSTE28-ARIN
Source:         ARIN


POCHandle:      HOSTE28-ARIN
IsRole:         Y
LastName:       Hosted Services
FirstName:      
Street:         333 South Street
City:           Shrewsbury
State/Prov:     MA
Country:        US
PostalCode:     01545-4169
RegDate:        2017-06-20
Updated:        2025-01-07
OfficePhone:    +1-508-612-1138
Mailbox:        HostedServices@umassmed.edu
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 146.189.25.0/24

Range	ASN	Company	Num of IPs
146.189.0.0/16	AS5724	University of Massachusetts Medical School	65,536

Nearby Ranges

BGP prefixes that overlap with 146.189.0.0/16

Range	ASN	Company	Num of IPs
146.189.0.0/16	AS5724	University of Massachusetts Medical School	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

Read more

Pingable IPs

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

IP Address	ASN	Details
146.189.25.35	AS5724 University of Massachusetts Medical School	`2.02ms` from Boston, 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
68.131.40.120	AS701 Verizon Business	`9.12ms` from Ashburn, US
137.117.77.248	AS8075 Microsoft Corporation	`0.40ms` from Ashburn, US
34.212.223.200	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
85.225.28.136	AS8434 Telenor Sverige AB	`4.17ms` from Copenhagen, DK
87.100.136.56	AS16086 DNA Oyj	`2.06ms` from Helsinki, FI
119.246.61.88	AS9269 Hong Kong Broadband Network Ltd.	`0.48ms` from Hong Kong, HK
124.150.43.72	AS7545 TPG Telecom Limited	`1.53ms` from Melbourne, AU
24.47.206.152	AS6128 Cablevision Systems Corp.	`8.10ms` from New York City, US
69.136.216.168	AS7922 Comcast Cable Communications, LLC	`7.09ms` from New York City, US
89.11.207.152	AS29695 Lyse Tele AS	`1.55ms` from Oslo, NO
78.193.19.104	AS12322 Free SAS	`1.35ms` from Paris, FR
61.80.246.232	AS4766 Korea Telecom	`5.72ms` from Seoul, KR
110.40.199.120	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.73ms` from Shanghai, CN
202.133.126.88	AS9597 KDDI Web Communications Inc.	`0.57ms` from Tokyo, JP
141.85.227.136	AS2614 RoEduNet	`0.62ms` from Bucharest, RO
120.29.155.120	AS38758 PT. HIPERNET INDODATA	`0.84ms` from Jakarta, ID
49.244.124.152	AS23752 Nepal Telecommunications Corporation, Internet Services,	`1.22ms` from Kathmandu, NP
91.135.8.200	AS12496 IDNet	`1.99ms` from London, GB
74.226.43.136	AS8075 Microsoft Corporation	`0.22ms` from Osaka, JP
138.204.82.120	AS263478 DUFIBRANET TELECOM LTDA	`10.28ms` from Osasco, BR
90.180.196.168	AS5610 O2 Czech Republic, a.s.	`6.30ms` from Prague, CZ
128.83.129.104	AS18 University of Texas at Austin	`5.39ms` from San Antonio, US
136.25.103.120	AS19165 Webpass Inc.	`1.42ms` from Santa Clara, US
172.71.8.8	AS13335 Cloudflare, Inc.	`0.46ms` from Tokyo, JP
193.81.137.88	AS8447 A1 Telekom Austria AG	`9.30ms` from Vienna, AT

Traceroute

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

traceroute -a -n -q1 -f2 146.189.25.35

traceroute to 146.189.25.35 (146.189.25.35): 64 hops max, 52 byte packets

2 [AS37381] 197.159.223.17 60.539 ms

3 [AS60171] 185.35.143.156 61.045 ms

4 *

5 *

6 *

7 [AS6939] 184.104.196.105 139.305 ms

8 [AS6939] 184.105.81.211 140.353 ms

9 *

10 *

11 [AS6939] 184.104.199.77 152.684 ms

12 *

13 [AS5724] 146.189.25.35 152.425 ms

Measurement taken from

IPinfo ProbeNet in Abidjan, CI

On January 30th 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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