AS5723 Johns Hopkins University

JHU

Company Website

IPv4 Addresses: 135,680

Number of Peers: 5

Number of Prefixes: 10

ASN Allocated: Assigned

ASN
Prefixes
Peers
Upstreams
Graphs
World Map
Raw Whois

AS5723 Summary

Regional Registry:

IANA

Allocation Status:

Assigned

Traffic Ratio:

Not Disclosed

Website:

http://jhu.edu

AS5723 Network

IPv4 Prefixes:

IPv4 Peers:

IPv4 Upstreams:

IPv6 Prefixes:

IPv6 Peers:

IPv6 Upstreams:

Contacts

Email Contacts:

noc@jhu.edu

Abuse Contacts:

noc@jhu.edu

Address:

Hopkins Information Technology Services,

3400 North Charles Street,

Garland Hall,

Suite 020,

Baltimore,

MD,

21218,

IPv4 Prefixes
IPv6 Prefixes

Announced Prefix	Description	Parent Prefix	RIR
128.220.0.0/16	Johns Hopkins University	128.220.0.0/16	ARIN
162.129.0.0/16	The Johns Hopkins Medical Institutions	162.129.0.0/16	ARIN
192.12.13.0/24	Johns Hopkins University	192.12.13.0/24	ARIN
192.12.14.0/24	Johns Hopkins University	192.12.14.0/24	ARIN
198.57.32.0/21	Johns Hopkins All Children's Hospital, Inc.	198.57.32.0/21	ARIN
198.57.37.0/24	Johns Hopkins All Children's Hospital, Inc.	198.57.32.0/21	ARIN
198.57.39.0/24	Johns Hopkins All Children's Hospital, Inc.	198.57.32.0/21	ARIN
198.57.40.0/22	Johns Hopkins All Children's Hospital, Inc.	198.57.40.0/22	ARIN
204.124.184.0/22	Johns Hopkins All Children's Hospital, Inc.	204.124.184.0/22	ARIN

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	2606:2b00::/32	Johns Hopkins University		2606:2b00::/32	ARIN

IPv4 Peers
IPv6 Peers

ASN	Name	Description
AS10886	MAX-GIGAPOP	University of Maryland
AS174	COGENT-174	Cogent Communications
AS6939	HURRICANE	Hurricane Electric LLC
AS3356	LEVEL3	Level 3 Parent, LLC

Country	ASN	Name	Description	IPv4
	AS6939	HURRICANE	Hurricane Electric LLC

IPv4 Upstreams
IPv6 Upstreams

ASN	Name	Description
AS6939	HURRICANE	Hurricane Electric LLC
AS3356	LEVEL3	Level 3 Parent, LLC
AS174	COGENT-174	Cogent Communications

IPv4 Upstream Graph

Country	ASN	Name	Description	IPv4
	AS6939	HURRICANE	Hurricane Electric LLC

IPv6 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:       5723
ASName:         JHU
ASHandle:       AS5723
RegDate:        1995-09-06
Updated:        2020-09-08    
Ref:            https://rdap.arin.net/registry/autnum/5723


OrgName:        Johns Hopkins University
OrgId:          JHU-Z
Address:        Hopkins Information Technology Services
Address:        3400 North Charles Street
Address:        Garland Hall, Suite 020
City:           Baltimore
StateProv:      MD
PostalCode:     21218
Country:        US
RegDate:        2020-08-28
Updated:        2020-08-28
Ref:            https://rdap.arin.net/registry/entity/JHU-Z


OrgAbuseHandle: DZ24-ARIN
OrgAbuseName:   Network Operation Center
OrgAbusePhone:  +1-410-516-4357 
OrgAbuseEmail:  noc@jhu.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DZ24-ARIN

OrgTechHandle: DZ24-ARIN
OrgTechName:   Network Operation Center
OrgTechPhone:  +1-410-516-4357 
OrgTechEmail:  noc@jhu.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/DZ24-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