Autonomous system
AS11656 MMO-17-44144
Unclassified APNIC
Summary
Medical Mutual of Ohio
enterprise legacy
MMO-17-44144 is the network of Medical Mutual of Ohio, the Cleveland-based health insurer. RIS sees 8 IPv4 prefixes, 2,048 addresses, no IPv6, and 4 observed BGP neighbours.
What it's used for
Enterprise connectivity for a health plan. The inventory is eight contiguous /24s from 66.111.16.0 through 66.111.29.0, every one of them registered to Medical Mutual itself under the netblock handle MMOH-DOM — self-held provider-independent space, announced as individual /24s rather than an aggregate so that inbound traffic can be steered across the four upstreams. Nothing is registered to a third party; there is no leased-address shape here at all.
What sits in the space is the public edge of an insurance company: member and provider portals, claims and eligibility interfaces, secure file exchange with employers and healthcare providers, and remote access for staff. A sampled address answers as www-r.medmutual.com, which anchors the identification — medmutual.com is Medical Mutual of Ohio's domain, and the MMOH in the netblock handle is the same abbreviation.
Notable
The holder string is worth a second look, because "Medical Mutual" on its own is ambiguous: several unrelated American insurers use the name, including medical-liability mutuals in other states. Two independent pieces of evidence resolve it to the Ohio health plan — the reverse DNS under medmutual.com, and the MMOH netblock handle. The AS name itself, MMO-17-44144, carries no meaning to an outsider; it is an internal registry code, a good reminder that ASN handles are frequently just filing references rather than descriptions.
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 2026-10-18, 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 · 2.05K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS11656- Registry name
- MMO-17-44144
- Registrant
- Medical Mutual
- Abuse contact
- pocofabuse@medmutual.com
- Registered
- 2010-04-05
- Last changed
- 2024-02-08
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 8 with no ROA
- ROAs
- 0 authorising AS11656
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 1 naming AS11656
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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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