Autonomous system
AS62371 PROTON
Unclassified RIPE Enterprise
Summary
Proton
privacy email vpn business
PROTON is operated by Proton AG.
What it's used for
- The address space carries Proton's privacy-focused services, with netnames explicitly referencing
CH-PROTONMAIL,CH-PROTONVPN, andCH-PROTONDRIVE. - The AS announces 3328 IPv4 addresses across 9 prefixes and 5 IPv6 prefixes, while maintaining 48 observed neighbours.
- Traffic from this network consists of web and API endpoints for Proton Mail, Proton Drive, and Proton VPN, serving users of these privacy-centric applications.
Notable
- All registrants align with the announcer, consistently listing Proton NOC, Proton AG, and Proton LIR admin.
- Proton AG is the corporate subsidiary of the non-profit Proton Foundation, which owns the company.
- The inventory is finely subdivided into specific service blocks, such as separate /24s for Mail, VPN, and Drive, reflecting an internal corporate estate structure.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| SwissIX | Zurich, Switzerland | 91.206.52.209 |
Transit providers
9 upstream, 1 downstream and 16 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 9 prefixes · 3.33K addresses IPv6 5 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CH | Switzerland | 14 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS62371- Registry name
- PROTON
- Registrant
- Proton AG
- Abuse contact
- abuse@protonmail.ch
- Registered
- 2015-11-17
- Last changed
- 2024-07-31
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Proton AG
- Also known as
- ProtonMail, ProtonVPN
- Network type
- Enterprise
- Scope
- Not Disclosed
- Peering policy
- Open
- IRR as-set
AS-PROTON- Present at
- 1 exchanges
- Facilities
- 4 facilities
- Website
- https://www.proton.me
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 20 valid, 0 with no ROA
- ROAs
- 29 authorising AS62371
- ASPA
- no ASPA record
- IRR
- 100% registered · 20 of 20 announcements
- Route objects
- 61 naming AS62371
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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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