ASN AS25850 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS25850?

AS25850 is listed under Carestream Health, 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.

How can I access the full ASN tables?

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AS25850 Carestream Health, Inc.

ASN Lookup Tool

Carestream Health, Inc. carestreamhealth.com

US 1 Routes

AS Data

AS25850

AS25850 – Carestream Health, Inc.

AS Number	25850
AS Name	CARESTREAMHEALTH
Organization	Carestream Health, Inc. (cares-2)
Country	US
Website	carestreamhealth.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2007-10-22

ASN Intelligence API for production workflows

Use ASN data for AS25850 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
205.173.211.0/24	AS25850	Carestream Health, Inc.	Carestream Health, 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:       25850
ASName:         CARESTREAMHEALTH
ASHandle:       AS25850
RegDate:        2007-10-22
Updated:        2021-05-18
Ref:            https://rdap.arin.net/registry/autnum/25850


OrgName:        Carestream Health, Inc.
OrgId:          CARES-2
Address:        150 Verona St.
City:           Rochester
StateProv:      NY
PostalCode:     14608
Country:        US
RegDate:        2007-09-05
Updated:        2020-05-21
Ref:            https://rdap.arin.net/registry/entity/CARES-2


OrgTechHandle: ALEXA499-ARIN
OrgTechName:   Alexander, Mark 
OrgTechPhone:  +1-970-515-9282 
OrgTechEmail:  mark.alexander@carestream.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ALEXA499-ARIN

OrgAbuseHandle: ALEXA499-ARIN
OrgAbuseName:   Alexander, Mark 
OrgAbusePhone:  +1-970-515-9282 
OrgAbuseEmail:  mark.alexander@carestream.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ALEXA499-ARIN

OrgNOCHandle: ALEXA499-ARIN
OrgNOCName:   Alexander, Mark 
OrgNOCPhone:  +1-970-515-9282 
OrgNOCEmail:  mark.alexander@carestream.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ALEXA499-ARIN

OrgNOCHandle: BARDT-ARIN
OrgNOCName:   Bard, Tom 
OrgNOCPhone:  +1-585-627-6936 
OrgNOCEmail:  TOM.BARD@CARESTREAM.COM
OrgNOCRef:    https://rdap.arin.net/registry/entity/BARDT-ARIN

OrgTechHandle: MULLE270-ARIN
OrgTechName:   Mullen, Randy 
OrgTechPhone:  +1-585-627-6939 
OrgTechEmail:  randy.mullen@carestream.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MULLE270-ARIN

OrgAbuseHandle: MULLE270-ARIN
OrgAbuseName:   Mullen, Randy 
OrgAbusePhone:  +1-585-627-6939 
OrgAbuseEmail:  randy.mullen@carestream.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MULLE270-ARIN

OrgTechHandle: BARDT-ARIN
OrgTechName:   Bard, Tom 
OrgTechPhone:  +1-585-627-6936 
OrgTechEmail:  TOM.BARD@CARESTREAM.COM
OrgTechRef:    https://rdap.arin.net/registry/entity/BARDT-ARIN

OrgNOCHandle: MULLE270-ARIN
OrgNOCName:   Mullen, Randy 
OrgNOCPhone:  +1-585-627-6939 
OrgNOCEmail:  randy.mullen@carestream.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/MULLE270-ARIN

OrgAbuseHandle: BARDT-ARIN
OrgAbuseName:   Bard, Tom 
OrgAbusePhone:  +1-585-627-6936 
OrgAbuseEmail:  TOM.BARD@CARESTREAM.COM
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BARDT-ARIN

RTechHandle: AMD8-ARIN
RTechName:   Dimeo, Anthony M
RTechPhone:  +1-585-724-9694 
RTechEmail:  anthony.dimeo@carestreamhealth.com
RTechRef:    https://rdap.arin.net/registry/entity/AMD8-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" : "25850",
    "as_handle" : "AS25850",
    "as_name" : "CARESTREAMHEALTH",
    "tech_contacts" : [ "ALEXA499-ARIN", "MULLE270-ARIN", "BARDT-ARIN", "AMD8-ARIN" ],
    "abuse_contacts" : [ "ALEXA499-ARIN", "MULLE270-ARIN", "BARDT-ARIN" ],
    "date_created" : "2007-10-22",
    "date_updated" : "2021-05-18",
    "source" : "https://rdap.arin.net/registry/autnum/25850"
  } ],
  "organization" : {
    "handle" : "CARES-2",
    "name" : "Carestream Health, Inc.",
    "address" : [ "150 Verona St.", "Rochester", "NY", "14608", "US" ],
    "street" : "Verona St.",
    "city" : "Rochester",
    "state" : "NY",
    "zip_code" : "14608",
    "country" : [ "US" ],
    "date_created" : "2007-09-05",
    "date_updated" : "2020-05-21",
    "source" : "https://rdap.arin.net/registry/entity/CARES-2",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "ALEXA499-ARIN",
    "name" : "Alexander, Mark",
    "email" : [ "mark.alexander@carestream.com" ],
    "phone" : [ "+1-970-515-9282" ],
    "source" : "https://rdap.arin.net/registry/entity/ALEXA499-ARIN"
  }, {
    "handle" : "MULLE270-ARIN",
    "name" : "Mullen, Randy",
    "email" : [ "randy.mullen@carestream.com" ],
    "phone" : [ "+1-585-627-6939" ],
    "source" : "https://rdap.arin.net/registry/entity/MULLE270-ARIN"
  }, {
    "handle" : "BARDT-ARIN",
    "name" : "Bard, Tom",
    "email" : [ "TOM.BARD@CARESTREAM.COM" ],
    "phone" : [ "+1-585-627-6936" ],
    "source" : "https://rdap.arin.net/registry/entity/BARDT-ARIN"
  }, {
    "handle" : "AMD8-ARIN",
    "name" : "Dimeo, Anthony M",
    "email" : [ "anthony.dimeo@carestreamhealth.com" ],
    "phone" : [ "+1-585-724-9694" ],
    "source" : "https://rdap.arin.net/registry/entity/AMD8-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ALEXA499-ARIN",
    "name" : "Alexander, Mark",
    "email" : [ "mark.alexander@carestream.com" ],
    "phone" : [ "+1-970-515-9282" ],
    "source" : "https://rdap.arin.net/registry/entity/ALEXA499-ARIN"
  }, {
    "handle" : "MULLE270-ARIN",
    "name" : "Mullen, Randy",
    "email" : [ "randy.mullen@carestream.com" ],
    "phone" : [ "+1-585-627-6939" ],
    "source" : "https://rdap.arin.net/registry/entity/MULLE270-ARIN"
  }, {
    "handle" : "BARDT-ARIN",
    "name" : "Bard, Tom",
    "email" : [ "TOM.BARD@CARESTREAM.COM" ],
    "phone" : [ "+1-585-627-6936" ],
    "source" : "https://rdap.arin.net/registry/entity/BARDT-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	NL

Upstreams

AS Number	Description	Country
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL