Autonomous system
AS3379 KAISER-NCAL
Unclassified ARIN
Summary
Kaiser Foundation Health Plan (Kaiser Permanente)
enterprise legacy
The network of Kaiser Foundation Health Plan, Inc. (KAISER-NCAL) — the Northern California arm of Kaiser Permanente, one of the largest integrated healthcare systems in the United States.
What it's used for
- Corporate and clinical networking for Kaiser Permanente: hospitals, medical offices, data centres, and administrative sites.
- Carrying a healthcare enterprise's internal systems — electronic health records, imaging, member services — rather than selling connectivity.
Notable
- An enterprise end-user network, not an ISP or a hosting provider. Addresses here belong to Kaiser facilities and staff.
- The handle's
NCALsuffix reflects Kaiser's regional structure; Northern California is its founding and largest region.
Interesting
- Kaiser announces a long tail of small prefixes, which is what a network built out of hundreds of clinics and medical office buildings tends to look like.
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 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 20 prefixes · 26.88K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 21 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3379- Registry name
- KAISER-NCAL
- Registrant
- Kaiser Foundation Health Plan, Inc.
- Abuse contact
- hostmaster@kp.org
- Registered
- 1994-01-06
- Last changed
- 2022-06-10
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 92% valid · 35 valid, 3 with no ROA
- ROAs
- 5 authorising AS3379
- ASPA
- no ASPA record
- IRR
- 55% registered · 21 of 38 announcements
- Route objects
- 5 naming AS3379
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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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