asn.dev

Autonomous system

AS23204 HMSA-ASNID

Unclassified ARIN

IPv4 addresses 1.28K 4 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Hawaii Medical Service Association

United States of America · AI-generated

business healthcare hawaii

The AS handle HMSA-ASNID is held by Hawaii Medical Service Association.

What it's used for

  • The address space carries internal corporate infrastructure for a nonprofit health insurer, evidenced by netnames HMSA-HI and registrant Hawaii Medical Service Association.
  • The inventory consists of 1280 IPv4 addresses across 4 prefixes, with only 2 observed neighbours, indicating a small, self-contained business network rather than a transit or access provider.

Notable

  • Registrants largely align with the announcer, with Hawaii Medical Service Association and HMSA listed for most blocks, though one prefix is registered to HAWAIIAN TELCOM.
  • The address inventory is small and fragmented, consisting of a /23 and three /24 blocks, typical of a single organization's internal estate.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS36149Hawaiian Telcom Services Company, Inc.132
AS3356Level 3 Parent, LLC122

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, 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 · 1.28K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS23204
Registry name
HMSA-ASNID
Registrant
Hawaii Medical Service Association
Abuse contact
Kem_chua@hmsa.com
Registered
2002-02-06
Last changed
2020-12-30
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS23204
ASPA
no ASPA record
IRR
25% registered · 1 of 4 announcements
Route objects
1 naming AS23204

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: 447 networks and 1,849 prefixes, as published 2026-10-30. 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