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.

AS12236 Hanover Insurance Group, Inc.

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

Hanover Insurance Group, Inc. hanover.com

US 4 Routes

AS Data

AS12236

AS12236 – Hanover Insurance Group, Inc.

AS Number	12236
AS Name	HANOVER
Organization	Hanover Insurance Group, Inc.(fafl)
Country	US
Website	hanover.com
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2010-12-08

ASN Intelligence API for production workflows

Use ASN data for AS12236 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
192.147.222.0/24	AS12236	Hanover Insurance Group, Inc.	Hanover Insurance Group, Inc.	256
192.147.223.0/24	AS12236	Hanover Insurance Group, Inc.	Hanover Insurance Group, Inc.	256
192.147.221.0/24	AS12236	Hanover Insurance Group, Inc.	Hanover Insurance Group, Inc.	256
192.147.224.0/24	AS12236	Hanover Insurance Group, Inc.	Hanover Insurance Group, 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:       12236
ASName:         HANOVER
ASHandle:       AS12236
RegDate:        2010-12-08
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/12236


OrgName:        Hanover Insurance Group, Inc.
OrgId:          FAFL
Address:        440 Lincoln St.
City:           Worcester
StateProv:      MA
PostalCode:     01653
Country:        US
RegDate:        
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/FAFL


OrgTechHandle: HOSTM1640-ARIN
OrgTechName:   Hostmaster
OrgTechPhone:  +1-508-855-1000 
OrgTechEmail:  hostmaster@hanover.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM1640-ARIN

OrgAbuseHandle: HOSTM1640-ARIN
OrgAbuseName:   Hostmaster
OrgAbusePhone:  +1-508-855-1000 
OrgAbuseEmail:  hostmaster@hanover.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM1640-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
AS46887	Crown Castle Fiber LLC	US
AS7018	AT&T Enterprises, LLC	US
AS32298	Centersquare	US
AS701	Verizon Business/UUnet	US
AS701	Verizon Business	US

Upstreams

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS32298	Centersquare	US
AS701	Verizon Business	US

Frequently Asked Questions

What is ASN AS12236?

ASN AS12236 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS12236?

AS12236 is listed under Hanover Insurance Group, Inc..

What do peers, upstreams, and downstreams mean?

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 included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.