asn.dev

Autonomous system

AS40229 MAINEHEALTH-MAINE-MEDICAL-CENTER

Unclassified ARIN

IPv4 addresses 4.10K 4 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

MaineHealth Maine Medical Center

United States of America · AI-generated

healthcare business enterprise us

The AS handle MAINEHEALTH-MAINE-MEDICAL-CENTER is held by MaineHealth Maine Medical Center.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by reverse DNS entries pointing to mainehealth.org and netnames registered as MAINEHEALTH-MMC.
  • The network announces 4 IPv4 prefixes totaling 4096 addresses and observes 3 routing neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access provider.
  • Traffic from this AS consists of office workers, clinical systems, and administrative endpoints for a multi-campus medical center serving the Portland, Maine region.

Notable

  • All four announced prefixes share the same registrant, MaineHealth Maine Medical Center, and the netname MAINEHEALTH-MMC, indicating a unified and consistent ownership structure.
  • The address inventory is finely subdivided into four contiguous blocks within the 63.247.48.0/21 range, reflecting site-by-site segmentation typical of large healthcare organizations.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS11351Charter Communications Inc682
AS13536FirstLight Fiber, Inc.65
AS13977Fidium58

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-24, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 4 prefixes · 4.10K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS40229
Registry name
MAINEHEALTH-MAINE-MEDICAL-CENTER
Registrant
MaineHealth Maine Medical Center
Abuse contact
arin@mainehealth.org
Registered
2006-09-15
Last changed
2022-04-07
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 13 with no ROA
ROAs
0 authorising AS40229
ASPA
no ASPA record
IRR
100% registered · 13 of 13 announcements
Route objects
20 naming AS40229

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 1,779 prefixes, as published 2026-10-24. 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

Cross-check