ASN AS54928 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS54928?

AS54928 is listed under Mount Sinai Medical Center of Florida, Inc..

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

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AS54928 Mount Sinai Medical Center of Florida, Inc.

ASN Lookup Tool

Mount Sinai Medical Center of Florida, Inc. msmc.com

US 1 Routes

AS Data

AS54928

AS54928 – Mount Sinai Medical Center of Florida, Inc.

AS Number	54928
AS Name	MSMC-FL
Organization	Mount Sinai Medical Center of Florida, Inc. (msmcf)
Country	US
Website	msmc.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2013-01-25

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.179.5.0/24	AS54928	Mount Sinai Medical Center of Florida, Inc.	Mount Sinai Medical Center of Florida, Inc.	256

Raw Whois Response

#
# 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 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       54928
ASName:         MSMC-FL
ASHandle:       AS54928
RegDate:        2013-01-25
Updated:        2016-06-08
Comment:        http://www.msmc.com
Comment:        305-674-2121
Ref:            https://rdap.arin.net/registry/autnum/54928


OrgName:        Mount Sinai Medical Center of Florida, Inc.
OrgId:          MSMCF
Address:        4300 Alton Road
City:           Miami Beach
StateProv:      FL
PostalCode:     33140
Country:        US
RegDate:        2012-10-26
Updated:        2020-03-09
Comment:        http://www.msmc.com
Ref:            https://rdap.arin.net/registry/entity/MSMCF


OrgNOCHandle: DELAT34-ARIN
OrgNOCName:   De La Tejera, Carlos 
OrgNOCPhone:  +1-305-674-2121 
OrgNOCEmail:  ctejera@msmc.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/DELAT34-ARIN

OrgTechHandle: LYNGA-ARIN
OrgTechName:   Lyn, Garth 
OrgTechPhone:  +1-305-674-2121 
OrgTechEmail:  Garth.Lyn@msmc.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LYNGA-ARIN

OrgAbuseHandle: DELAT34-ARIN
OrgAbuseName:   De La Tejera, Carlos 
OrgAbusePhone:  +1-305-674-2121 
OrgAbuseEmail:  ctejera@msmc.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DELAT34-ARIN

OrgTechHandle: DELAT34-ARIN
OrgTechName:   De La Tejera, Carlos 
OrgTechPhone:  +1-305-674-2121 
OrgTechEmail:  ctejera@msmc.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DELAT34-ARIN

OrgRoutingHandle: DELAT34-ARIN
OrgRoutingName:   De La Tejera, Carlos 
OrgRoutingPhone:  +1-305-674-2121 
OrgRoutingEmail:  ctejera@msmc.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DELAT34-ARIN

OrgDNSHandle: DELAT34-ARIN
OrgDNSName:   De La Tejera, Carlos 
OrgDNSPhone:  +1-305-674-2121 
OrgDNSEmail:  ctejera@msmc.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/DELAT34-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 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "54928",
    "as_handle" : "AS54928",
    "as_name" : "MSMC-FL",
    "admin_contacts" : [ "DELAT34-ARIN" ],
    "tech_contacts" : [ "LYNGA-ARIN", "DELAT34-ARIN", "DELAT34-ARIN" ],
    "abuse_contacts" : [ "DELAT34-ARIN" ],
    "date_created" : "2013-01-25",
    "date_updated" : "2016-06-08",
    "source" : "https://rdap.arin.net/registry/autnum/54928"
  } ],
  "organization" : {
    "handle" : "MSMCF",
    "name" : "Mount Sinai Medical Center of Florida, Inc.",
    "address" : [ "4300 Alton Road", "Miami Beach", "FL", "33140", "US" ],
    "street" : "Alton Road",
    "city" : "Miami Beach",
    "state" : "FL",
    "zip_code" : "33140",
    "country" : [ "US" ],
    "date_created" : "2012-10-26",
    "date_updated" : "2020-03-09",
    "source" : "https://rdap.arin.net/registry/entity/MSMCF",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "DELAT34-ARIN",
    "name" : "De La Tejera, Carlos",
    "email" : [ "ctejera@msmc.com" ],
    "phone" : [ "+1-305-674-2121" ],
    "source" : "https://rdap.arin.net/registry/entity/DELAT34-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "LYNGA-ARIN",
    "name" : "Lyn, Garth",
    "email" : [ "Garth.Lyn@msmc.com" ],
    "phone" : [ "+1-305-674-2121" ],
    "source" : "https://rdap.arin.net/registry/entity/LYNGA-ARIN"
  }, {
    "handle" : "DELAT34-ARIN",
    "name" : "De La Tejera, Carlos",
    "email" : [ "ctejera@msmc.com" ],
    "phone" : [ "+1-305-674-2121" ],
    "source" : "https://rdap.arin.net/registry/entity/DELAT34-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "DELAT34-ARIN",
    "name" : "De La Tejera, Carlos",
    "email" : [ "ctejera@msmc.com" ],
    "phone" : [ "+1-305-674-2121" ],
    "source" : "https://rdap.arin.net/registry/entity/DELAT34-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS33132	Crown Castle Fiber LLC	US

Upstreams

AS Number	Description	Country
AS33132	Crown Castle Fiber LLC	US