Autonomous system
AS3751 PHONAK-LLC
Unclassified ARIN
Summary
Phonak, LLC
enterprise legacy
Corporate ASN (PHONAK-LLC) of Phonak, LLC, the US arm of the Phonak hearing-aid business, part of the Swiss Sonova Group.
What it's used for
- Corporate networking for Phonak's United States operations: offices, business systems, and internet-facing corporate services.
- Announces only a single small block (a /24), so the footprint is deliberately tiny.
Notable
- Enterprise address space: it serves one company's own staff and systems, not subscribers or hosted customers.
- A hearing-technology manufacturer holding its own AS number is unusual. Most companies of this size sit behind a provider's addresses rather than running BGP themselves.
Interesting
- The whole allocation is 256 addresses, one of the smallest footprints you will find on a low-numbered ARIN ASN. The AS number is the notable part, not the size of the network behind it.
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 2026-10-17, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3751- Registry name
- PHONAK-LLC
- Registrant
- Phonak, LLC
- Abuse contact
- james.berg@phonak.com
- Registered
- 2010-08-30
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS3751
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 1 announcements
- Route objects
- 0 naming AS3751
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 1,783 prefixes, as published 2026-10-17. 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