146.57.248.0/21

AS57 · University of Minnesota

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Summary

Country	United States
Domain	umn.edu
ASN	AS57
Parent Range	146.57.0.0/16
Registry	ARIN
ID	UMN-MRS-NET

WHOIS Details

NetHandle:      NET-146-57-0-0-1
OrgID:          UNIVER-233-Z
Parent:         NET-146-0-0-0-0
NetName:        UMN-MRS-NET
NetRange:       146.57.0.0 - 146.57.255.255
NetType:        allocation
RegDate:        1991-01-21
Updated:        2021-12-14
Source:         ARIN


OrgID:          UNIVER-233-Z
OrgName:        University of Minnesota
CanAllocate:    
Street:         Office of Information Technology
Street:         2218 Univ Ave SE
City:           Minneapolis
State/Prov:     MN
Country:        US
PostalCode:     55414
Comment:        http://www.umn.edu/
RegDate:        2009-10-13
Updated:        2019-09-30
OrgAdminHandle: NTA-ORG-ARIN
OrgTechHandle:  NTA-ORG-ARIN
OrgAbuseHandle: UUIS-ARIN
OrgNOCHandle:   NTA-ORG-ARIN
Source:         ARIN


POCHandle:      UUIS-ARIN
IsRole:         Y
LastName:       UIS - University Information Security
FirstName:      
Street:         90 Church St SE
City:           Minneapolis
State/Prov:     MN
Country:        US
PostalCode:     55455
RegDate:        2019-09-30
Updated:        2025-10-15
OfficePhone:    +1-612-301-4357
Mailbox:        abuse@umn.edu
Source:         ARIN


POCHandle:      NTA-ORG-ARIN
IsRole:         Y
LastName:       NTS - Technical Assistance Center
FirstName:      
Street:         2218 University Ave SE
City:           Minneapolis
State/Prov:     MN
Country:        US
PostalCode:     55414
RegDate:        1970-01-01
Updated:        2025-10-15
OfficePhone:    +1-612-301-4357
Mailbox:        tac-nts-list@umn.edu
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 146.57.248.0/21

Range	ASN	Company	Num of IPs
146.57.0.0/16	AS217	University of Minnesota	65,536
146.57.0.0/16	AS57	University of Minnesota	65,536

Nearby Ranges

BGP prefixes that overlap with 146.57.0.0/16

Range	ASN	Company	Num of IPs
146.57.0.0/16	AS217	University of Minnesota	65,536
146.57.0.0/16	AS57	University of Minnesota	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

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

IP Address	ASN	Details
146.57.253.69	AS57 University of Minnesota	`0.21ms` from Minneapolis, US
146.57.252.5	AS57 University of Minnesota	`0.76ms` from Minneapolis, US
146.57.255.144	AS57 University of Minnesota	`0.24ms` from Minneapolis, US
146.57.249.59	AS57 University of Minnesota	`0.29ms` from Minneapolis, US
146.57.248.178	AS57 University of Minnesota	`0.28ms` from Minneapolis, US
146.57.254.10	AS57 University of Minnesota	`0.43ms` from Minneapolis, 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
123.56.136.197	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.90ms` from Beijing, CN
198.233.15.101	AS10753 Level 3 Parent, LLC	`0.69ms` from Denver, US
112.67.169.229	AS4134 CHINANET-BACKBONE	`1.15ms` from Haikou, CN
60.14.164.149	AS4837 CHINA UNICOM China169 Backbone	`10.50ms` from Harbin, CN
185.8.130.69	AS3188 Alastyr Telekomunikasyon A.S.	`0.16ms` from Izmir, TR
145.82.204.101	AS25019 Saudi Telecom Company JSC	`1.23ms` from Jeddah, SA
83.97.104.53	AS44056 Trytek LLC	`2.79ms` from Moscow, RU
86.192.191.213	AS3215 Orange S.A.	`9.95ms` from Paris, FR
122.5.56.229	AS4134 CHINANET-BACKBONE	`7.16ms` from Qingdao, CN
97.237.197.181	AS6167 Verizon Business	`12.08ms` from Atlanta, US
197.132.235.133	AS24835 Vodafone Data	`13.48ms` from Cairo, EG
96.10.212.229	AS11426 Charter Communications Inc	`3.96ms` from Charlotte, US
74.130.113.5	AS10796 Charter Communications Inc	`10.22ms` from Columbus, US
50.238.94.165	AS7922 Comcast Cable Communications, LLC	`1.11ms` from Denver, US
147.148.87.245	AS2856 British Telecommunications PLC	`4.44ms` from Erith, GB
86.166.90.5	AS2856 British Telecommunications PLC	`4.03ms` from Erith, GB
175.178.56.53	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.20ms` from Guangzhou, CN
149.30.161.117	AS133199 SonderCloud Limited	`0.52ms` from Hong Kong, HK
95.145.95.37	AS2856 British Telecommunications PLC	`6.26ms` from London, GB
3.160.137.117	AS16509 Amazon.com, Inc.	`7.38ms` from Madrid, ES
58.220.63.21	AS137697 CHINATELECOM JiangSu YangZhou IDC network	`6.26ms` from Nanjing, CN
73.116.92.101	AS7922 Comcast Cable Communications, LLC	`10.56ms` from Santa Clara, US
14.203.147.133	AS7545 TPG Telecom Limited	`1.26ms` from Sydney, AU
84.52.33.133	AS8728 AS INFONET	`0.50ms` from Tallinn, EE
221.180.200.181	AS9808 China Mobile Communications Group Co., Ltd.	`12.07ms` from Tieling, CN

Traceroute

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

traceroute -a -n -q1 -f2 -m6 146.57.251.44

traceroute to 146.57.251.44 (146.57.251.44): 6 hops max, 52 byte packets

2 [AS29467] 153.92.49.41 0.818 ms

3 [AS29467] 153.92.62.6 0.59 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Luxembourg, LU

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.

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