ASN AS609 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS609?

AS609 is listed under Ernst & Young LLP.

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?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS609 Ernst & Young LLP | IPGeolocation.io

ASN Lookup Tool

Ernst & Young LLP ey.com

US 5 Routes

AS Data

AS609

AS609 – Ernst & Young LLP

AS Number	609
AS Name	EY-AS-L
Organization	Ernst & Young LLP(eyl)
Country	US
Website	ey.com
Number of IPv4 Routes	4
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2009-07-22

ASN Intelligence API for production workflows

Use ASN data for AS609 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.52.149.0/24	AS609	Ernst & Young LLP	Ernst & Young LLP	256
199.52.160.0/24	AS609	Ernst & Young LLP	Ernst & Young LLP	256
199.52.148.0/24	AS609	Ernst & Young LLP	Ernst & Young LLP	256
199.52.150.0/24	AS609	Ernst & Young LLP	Ernst & Young LLP	256
2602:80d:8000::/36	AS609	Ernst & Young LLP	Ernst & Young LLP	~5×10²⁷

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:       609
ASName:         EY-AS-L
ASHandle:       AS609
RegDate:        2009-07-22
Updated:        2023-10-04    
Ref:            https://rdap.arin.net/registry/autnum/609


OrgName:        Ernst & Young LLP
OrgId:          EYL
Address:        200 Plaza Drive
City:           Secaucus
StateProv:      NJ
PostalCode:     07094
Country:        US
RegDate:        1996-01-31
Updated:        2025-05-26
Ref:            https://rdap.arin.net/registry/entity/EYL


OrgNOCHandle: IAM12-ARIN
OrgNOCName:   IP Address Management
OrgNOCPhone:  +1-201-872-2200 
OrgNOCEmail:  Internet@ey.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/IAM12-ARIN

OrgDNSHandle: IAM12-ARIN
OrgDNSName:   IP Address Management
OrgDNSPhone:  +1-201-872-2200 
OrgDNSEmail:  Internet@ey.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/IAM12-ARIN

OrgRoutingHandle: IAM12-ARIN
OrgRoutingName:   IP Address Management
OrgRoutingPhone:  +1-201-872-2200 
OrgRoutingEmail:  Internet@ey.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/IAM12-ARIN

OrgTechHandle: IAM12-ARIN
OrgTechName:   IP Address Management
OrgTechPhone:  +1-201-872-2200 
OrgTechEmail:  Internet@ey.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IAM12-ARIN

OrgAbuseHandle: IAM12-ARIN
OrgAbuseName:   IP Address Management
OrgAbusePhone:  +1-201-872-2200 
OrgAbuseEmail:  Internet@ey.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IAM12-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
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US