Autonomous system
AS6646 AETNA - Aetna, Inc.
Unclassified ARIN
Summary
Aetna
enterprise legacy
AETNA is the corporate network of Aetna, Inc., the health insurance company headquartered at 151 Farmington Avenue in Hartford, Connecticut. Aetna has been part of CVS Health since 2018.
What it's used for
- Aetna's own enterprise network: corporate connectivity, member- and provider-facing systems, and internal infrastructure.
- Announces roughly 16k IPv4 addresses, essentially all of it out of a single contiguous
206.213.0.0-range allocation.
Notable
- This is a classic Fortune-500 enterprise AS: a large company that runs its own multihomed network but sells no connectivity to anyone. It is not an ISP or a hosting provider despite the sizeable address count.
- ARIN records date the ASN registration to 1996, back when a large insurer building out its own internet presence was still a notable step.
Interesting
- Health insurers were among the earliest non-technology enterprises to get their own AS numbers, driven by the need to exchange claims data reliably with hospitals, clearinghouses, and employers.
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 2026-11-08, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 16 prefixes · 16.38K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 16 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6646- Registry name
- AETNA
- Registrant
- Aetna, Inc.
- Abuse contact
- hostmaster@aetna.com
- Registered
- 1996-06-14
- Last changed
- 2003-05-23
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 20 with no ROA
- ROAs
- 0 authorising AS6646
- ASPA
- no ASPA record
- IRR
- 100% registered · 20 of 20 announcements
- Route objects
- 5 naming AS6646
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: 455 networks and 1,854 prefixes, as published 2026-11-09. 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