Autonomous system
AS12236 HANOVER
Unclassified ARIN
Summary
Hanover Insurance Group
finance enterprise legacy
The network of The Hanover Insurance Group, the US property and casualty insurer based in Worcester, Massachusetts.
What it's used for
- Corporate systems. 1,024 addresses over three prefixes with four observed BGP neighbours, no IPv6 announced.
Notable
- The netname on both readable blocks is
FAFL-192-147-220, and the registry lists "First Allmerica Financial Life" alongside the company as a contact. - That netname points at
192.147.220, a/24which is not among the announced prefixes. The label describes the base of an original assignment rather than any block in service. - All three prefixes sit within
192.147.221.0–192.147.224.255, out of the class C range.
Interesting
- Allmerica Financial was this company's name until it took the name of its oldest subsidiary in 2005, and First Allmerica Financial Life was the life insurance arm it later sold off entirely. Two decades on, a business that is no longer part of the group is still the label on the group's address space.
- Insurance companies keep records for a very long time by necessity — a liability policy can be claimed against decades after it was written — and their infrastructure tends to inherit the same habit. A netname naming a divested subsidiary is a small instance of an organisational memory that outlasts the organisation chart.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS12236- Registry name
- HANOVER
- Registrant
- Hanover Insurance Group, Inc.
- Abuse contact
- hostmaster@hanover.com
- Registered
- 2010-12-08
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS12236
- ASPA
- no ASPA record
- IRR
- 75% registered · 3 of 4 announcements 1 other origin
- Route objects
- 5 naming AS12236
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,778 prefixes, as published 2026-10-20. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere