ASN AS17166 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS17166?

AS17166 is listed under Travelers Property Casualty Corp..

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.

AS17166 Travelers Property Casualty Corp.

ASN Lookup Tool

Travelers Property Casualty Corp. travelers.com

US 31 Routes

AS Data

AS17166

AS17166 – Travelers Property Casualty Corp.

AS Number	17166
AS Name	TRAVELERSPCAS
Organization	Travelers Property Casualty Corp.(tpcc)
Country	US
Website	travelers.com
Number of IPv4 Routes	31
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2000-08-01

ASN Intelligence API for production workflows

Use ASN data for AS17166 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
170.202.217.0/24	AS17166	Travelers Property Casualty Corp.	The St. Paul Travelers Companies, Inc.	256
170.202.224.0/22	AS17166	Travelers Property Casualty Corp.	The St. Paul Travelers Companies, Inc.	1024
170.202.233.0/24	AS17166	Travelers Property Casualty Corp.	The St. Paul Travelers Companies, Inc.	256
170.202.164.0/22	AS17166	Travelers Property Casualty Corp.	The St. Paul Travelers Companies, Inc.	1024
170.202.172.0/23	AS17166	Travelers Property Casualty Corp.	The St. Paul Travelers Companies, Inc.	512
170.202.174.0/24	AS17166	Travelers Property Casualty Corp.	The St. Paul Travelers Companies, Inc.	256
170.202.246.0/23	AS17166	Travelers Property Casualty Corp.	The St. Paul Travelers Companies, Inc.	512
170.202.228.0/22	AS17166	Travelers Property Casualty Corp.	The St. Paul Travelers Companies, Inc.	1024
165.175.128.0/24	AS17166	Travelers Property Casualty Corp.	Travelers Property Casualty Corp.	256
170.202.218.0/24	AS17166	Travelers Property Casualty Corp.	The St. Paul Travelers Companies, 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:       17166
ASName:         TRAVELERSPCAS
ASHandle:       AS17166
RegDate:        2000-08-01
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/17166


OrgName:        Travelers Property Casualty Corp.
OrgId:          TPCC
Address:        1 Tower Square
City:           Hartford
StateProv:      CT
PostalCode:     06183
Country:        US
RegDate:        2003-06-30
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/TPCC


OrgAbuseHandle: ZT116-ARIN
OrgAbuseName:   Internet Registration
OrgAbusePhone:  +1-860-277-0111 
OrgAbuseEmail:  internet-registration@travelers.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ZT116-ARIN

OrgTechHandle: ZT116-ARIN
OrgTechName:   Internet Registration
OrgTechPhone:  +1-860-277-0111 
OrgTechEmail:  internet-registration@travelers.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZT116-ARIN

RTechHandle: JS3891-ARIN
RTechName:   Stone, Jonathan 
RTechPhone:  +1-860-277-7994 
RTechEmail:  jonathan_stone@travelers.com
RTechRef:    https://rdap.arin.net/registry/entity/JS3891-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
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS701	Verizon Business/UUnet	US
AS3356	Level 3 Parent, LLC	US
AS701	Verizon Business	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS701	Verizon Business	US