ASN AS23217 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS23217?

AS23217 is listed under ERNST & YOUNG 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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AS23217 ERNST & YOUNG INC. | IPGeolocation.io

ASN Lookup Tool

ERNST & YOUNG INC. ey.com

CA 1 Routes

AS Data

AS23217

AS23217 – ERNST & YOUNG INC.

AS Number	23217
AS Name	EY-CANADA
Organization	ERNST & YOUNG INC.(ey-20)
Country	CA
Website	ey.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2002-02-08

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Use ASN data for AS23217 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.49.85.0/24	AS23217	ERNST & YOUNG INC.	Ernst & Young LLP	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:       23217
ASName:         EY-CANADA
ASHandle:       AS23217
RegDate:        2002-02-08
Updated:        2023-07-28    
Ref:            https://rdap.arin.net/registry/autnum/23217


OrgName:        ERNST & YOUNG INC.
OrgId:          EY-20
Address:        Care of: General Counsel's Office
Address:        100 Adelaide Street West, Suite 3900
City:           TORONTO
StateProv:      ON
PostalCode:     M5H 0B3
Country:        CA
RegDate:        2023-03-16
Updated:        2024-04-01
Ref:            https://rdap.arin.net/registry/entity/EY-20


OrgDNSHandle: MONRO478-ARIN
OrgDNSName:   Monroe, Alisha 
OrgDNSPhone:  +1-212-773-4545 
OrgDNSEmail:  alisha.monroe@ey.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/MONRO478-ARIN

OrgRoutingHandle: MONRO478-ARIN
OrgRoutingName:   Monroe, Alisha 
OrgRoutingPhone:  +1-212-773-4545 
OrgRoutingEmail:  alisha.monroe@ey.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/MONRO478-ARIN

OrgTechHandle: MONRO478-ARIN
OrgTechName:   Monroe, Alisha 
OrgTechPhone:  +1-212-773-4545 
OrgTechEmail:  alisha.monroe@ey.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MONRO478-ARIN

OrgAbuseHandle: MONRO478-ARIN
OrgAbuseName:   Monroe, Alisha 
OrgAbusePhone:  +1-212-773-4545 
OrgAbuseEmail:  alisha.monroe@ey.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MONRO478-ARIN

OrgNOCHandle: MONRO478-ARIN
OrgNOCName:   Monroe, Alisha 
OrgNOCPhone:  +1-212-773-4545 
OrgNOCEmail:  alisha.monroe@ey.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/MONRO478-ARIN

RTechHandle: VALLE173-ARIN
RTechName:   Vallejos, Cesar 
RTechPhone:  +1-212-360-9262 
RTechEmail:  cesar.vallejos@ey.com
RTechRef:    https://rdap.arin.net/registry/entity/VALLE173-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

Peers

AS Number	Description	Country
AS852	TELUS Communications Inc.	CA
AS577	Bell Canada	CA

Upstreams

AS Number	Description	Country
AS852	TELUS Communications Inc.	CA
AS577	Bell Canada	CA