IP range details

146.57.248.0/21

AS57 · University of Minnesota

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Summary

Country	United States
Domain	umn.edu
ASN	AS57
Registry	arin
Hosted IPs	2,048
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
OriginAS:       57, 217
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:        2024-10-15
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:        2024-10-15
OfficePhone:    +1-612-301-4357
Mailbox:        tac-nts-list@umn.edu
Source:         ARIN

Hosted domains

There are no domains currently hosted on this ASN.

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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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