AS5724 University of Massachusetts Medical School

UMASSMED

IPv4 Addresses: 65,536

Number of Peers: 3

Number of Prefixes: 4

ASN Allocated: 6^th September 1995

ASN
Prefixes
Peers
Upstreams
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Raw Whois

AS5724 Summary

Regional Registry:

ARIN

Allocation Status:

Assigned

Allocation Date:

6^th September 1995

Allocated Country:

Traffic Ratio:

Not Disclosed

AS5724 Network

IPv4 Prefixes:

IPv4 Peers:

IPv4 Upstreams:

IPv6 Prefixes:

IPv6 Peers:

IPv6 Upstreams:

Contacts

Email Contacts:

hostedservices@umassmed.edu

Abuse Contacts:

hostedservices@umassmed.edu

Address:

55 Lake Avenue North,

Worcester,

MA,

01655,

IPv4 Prefixes

Announced Prefix	Description	Parent Prefix	RIR
146.189.0.0/16	University of Massachusetts Medical School	146.189.0.0/16	ARIN
146.189.25.0/24	University of Massachusetts Medical School	146.189.0.0/16	ARIN
146.189.26.0/24	University of Massachusetts Medical School	146.189.0.0/16	ARIN
146.189.128.0/21	University of Massachusetts Medical School	146.189.0.0/16	ARIN

IPv4 Peers

ASN	Name	Description
AS398427	MARKLEY-NETWORK-SERVICES	Markley Network Services, LLC
AS10578	GIGAPOP-NE	Harvard University
AS174	COGENT-174	Cogent Communications

IPv4 Upstreams

ASN	Name	Description
AS398427	MARKLEY-NETWORK-SERVICES	Markley Network Services, LLC
AS10578	GIGAPOP-NE	Harvard University
AS174	COGENT-174	Cogent Communications

IPv4 Upstream Graph

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#


ASNumber:       5724
ASName:         UMASSMED
ASHandle:       AS5724
RegDate:        1995-09-06
Updated:        2023-07-01
Comment:        http://www.umassmed.edu    
Ref:            https://rdap.arin.net/registry/autnum/5724


OrgName:        University of Massachusetts Medical School
OrgId:          UMMC-1-Z
Address:        55 Lake Avenue North
City:           Worcester
StateProv:      MA
PostalCode:     01655
Country:        US
RegDate:        2023-06-20
Updated:        2023-06-20
Ref:            https://rdap.arin.net/registry/entity/UMMC-1-Z


OrgNOCHandle: HOSTE28-ARIN
OrgNOCName:   Hosted Services
OrgNOCPhone:  +1-508-612-1138 
OrgNOCEmail:  HostedServices@umassmed.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/HOSTE28-ARIN

OrgTechHandle: HOSTE28-ARIN
OrgTechName:   Hosted Services
OrgTechPhone:  +1-508-612-1138 
OrgTechEmail:  HostedServices@umassmed.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTE28-ARIN

OrgAbuseHandle: HOSTE28-ARIN
OrgAbuseName:   Hosted Services
OrgAbusePhone:  +1-508-612-1138 
OrgAbuseEmail:  HostedServices@umassmed.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTE28-ARIN

RTechHandle: HOSTE28-ARIN
RTechName:   Hosted Services
RTechPhone:  +1-508-612-1138 
RTechEmail:  HostedServices@umassmed.edu
RTechRef:    https://rdap.arin.net/registry/entity/HOSTE28-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#

Country	IX	Name	IPv4	IPv6	Port Speed

AS5724 University of Massachusetts Medical School

UMASSMED

AS5724 Summary

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Allocation Status:

Allocation Date:

Allocated Country:

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AS5724 Network

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IPv6 Prefixes:

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Contacts

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Abuse Contacts:

Address:

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