ASN AS23173 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS23173?

AS23173 is listed under CITISTREET.

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.

AS23173 CITISTREET | IPGeolocation.io

ASN Lookup Tool

CITISTREET voya.com

US 17 Routes

AS Data

AS23173

AS23173 – CITISTREET

AS Number	23173
AS Name	VOYA-FINANCIAL
Organization	CITISTREET(citist-2)
Country	US
Website	voya.com
Number of IPv4 Routes	17
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2002-02-04

ASN Intelligence API for production workflows

Use ASN data for AS23173 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
72.0.16.0/23	AS23173	CITISTREET	CITISTREET	512
72.0.30.0/23	AS23173	CITISTREET	CITISTREET	512
72.0.2.0/23	AS23173	CITISTREET	CITISTREET	512
72.0.24.0/22	AS23173	CITISTREET	CITISTREET	1024
72.0.19.0/24	AS23173	CITISTREET	CITISTREET	256
72.0.8.0/23	AS23173	CITISTREET	CITISTREET	512
204.86.50.0/24	AS23173	CITISTREET	Voya Services Company	256
72.0.12.0/22	AS23173	CITISTREET	CITISTREET	1024
72.0.28.0/24	AS23173	CITISTREET	CITISTREET	256
72.0.11.0/24	AS23173	CITISTREET	CITISTREET	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:       23173
ASName:         VOYA-FINANCIAL
ASHandle:       AS23173
RegDate:        2002-02-04
Updated:        2019-01-11    
Ref:            https://rdap.arin.net/registry/autnum/23173


OrgName:        CITISTREET
OrgId:          CITIST-2
Address:        30 Braintree Hill Office Park
City:           Braintree
StateProv:      MA
PostalCode:     02169
Country:        US
RegDate:        2001-07-11
Updated:        2025-11-14
Ref:            https://rdap.arin.net/registry/entity/CITIST-2


OrgTechHandle: STIVA2-ARIN
OrgTechName:   Stivala, Joseph 
OrgTechPhone:  +1-212-309-1751 
OrgTechEmail:  joseph.stivala@voya.com
OrgTechRef:    https://rdap.arin.net/registry/entity/STIVA2-ARIN

OrgTechHandle: LEWIS1097-ARIN
OrgTechName:   Lewis, Mike 
OrgTechPhone:  +1-904-791-2678 
OrgTechEmail:  Mike.Lewis@voya.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LEWIS1097-ARIN

OrgAbuseHandle: NETWO1997-ARIN
OrgAbuseName:   Networkers
OrgAbusePhone:  +1-781-796-9427 
OrgAbuseEmail:  networkers@list.voya.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO1997-ARIN

OrgTechHandle: SCHIL147-ARIN
OrgTechName:   Schilling, Anissa  
OrgTechPhone:  +1-612-342-3651 
OrgTechEmail:  anissa.schilling@voya.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SCHIL147-ARIN

OrgTechHandle: NETWO1997-ARIN
OrgTechName:   Networkers
OrgTechPhone:  +1-781-796-9427 
OrgTechEmail:  networkers@list.voya.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO1997-ARIN

OrgAbuseHandle: LEWIS1097-ARIN
OrgAbuseName:   Lewis, Mike 
OrgAbusePhone:  +1-904-791-2678 
OrgAbuseEmail:  Mike.Lewis@voya.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LEWIS1097-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
AS13335	Cloudflare, Inc.	US
AS209	CenturyLink Communications, LLC	US
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS13335	Cloudflare, Inc.	US
AS209	CenturyLink Communications, LLC	US
AS6461	Zayo Bandwidth	US