AS21821 Montefiore Medical Center

• IPv4 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	144.121.102.0/24	Montefiore Medicine Academic Health System, Inc.		144.121.0.0/16	ARIN
	144.121.104.0/24	Montefiore Medicine Academic Health System, Inc.		144.121.0.0/16	ARIN
	216.255.100.0/24	Montefiore Medical Center		216.113.0.0/17	ARIN
	216.255.101.0/24	Montefiore Medical Center		216.255.96.0/19	ARIN

• IPv4 Peers

Country	ASN	Name	Description
	AS46887	CROWNCASTLE-AS46887	Crown Castle Fiber LLC
	AS32787	PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK	Akamai Technologies, Inc.
	AS54004	OPTIMUM-WIFI2	Optimum WiFi

• IPv4 Upstreams

Country	ASN	Name	Description
	AS32787	PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK	Akamai Technologies, Inc.
	AS46887	CROWNCASTLE-AS46887	Crown Castle Fiber LLC
	AS54004	OPTIMUM-WIFI2	Optimum WiFi

IPv4 Upstream Graph

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IPv4 Upstream Graph

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#
# 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/
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# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#


ASNumber:       21821
ASName:         MMAHS-01
ASHandle:       AS21821
RegDate:        2017-04-03
Updated:        2017-04-03    
Ref:            https://rdap.arin.net/registry/autnum/21821


OrgName:        Montefiore Medical Center
OrgId:          MMC-125
Address:        1 Fordham Plaza
City:           Bronx
StateProv:      NY
PostalCode:     10458
Country:        US
RegDate:        2001-06-26
Updated:        2021-04-02
Ref:            https://rdap.arin.net/registry/entity/MMC-125


OrgAbuseHandle: NCC46-ARIN
OrgAbuseName:   NCC
OrgAbusePhone:  +1-914-457-6700 
OrgAbuseEmail:  ncc@montefiore.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NCC46-ARIN

OrgTechHandle: NCC46-ARIN
OrgTechName:   NCC
OrgTechPhone:  +1-914-457-6700 
OrgTechEmail:  ncc@montefiore.org
OrgTechRef:    https://rdap.arin.net/registry/entity/NCC46-ARIN

OrgNOCHandle: NCC46-ARIN
OrgNOCName:   NCC
OrgNOCPhone:  +1-914-457-6700 
OrgNOCEmail:  ncc@montefiore.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/NCC46-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.
#