AS62371 — PROTON Proton AG

AS62371 announces 8 IPv4 prefixes covering 3,072 addresses and 4 IPv6 prefixes.

About this network

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, and CH-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.

Announced prefixes

• 79.135.106.0/23
• 95.36.96.0/24
• 95.36.98.0/24
• 109.224.244.0/24
• 176.119.200.0/24
• 185.70.40.0/22
• 185.205.70.0/24
• 194.0.147.0/24
• 2a05:2701:f00::/42
• 2a05:2701:f40::/43
• 2a05:2701:fe00::/48
• 2a05:2701:fe02::/48

Upstream networks

• AS13335 Cloudflare, Inc.
• AS6939 Hurricane Electric LLC
• AS199524 G-Core Labs S.A.
• AS3356 Level 3 Parent, LLC
• AS1836 green.ch AG
• AS48362 Stadtwerke Feldkirch
• AS25091 IP-Max SA
• AS24482 SG.GS
• AS9002 RETN Limited

Downstream networks

• AS209103 Proton AG

Adjacent networks

• AS13335 Cloudflare, Inc.
• AS6939 Hurricane Electric LLC
• AS209103 Proton AG
• AS3356 Level 3 Parent, LLC
• AS199524 G-Core Labs S.A.
• AS1836 green.ch AG
• AS24482 SG.GS
• AS25091 IP-Max SA
• AS48362 Stadtwerke Feldkirch
• AS33891 Core-Backbone GmbH
• AS9002 RETN Limited

Routing security

• RPKI: 20 valid, 0 invalid and 0 not-found announcements; 29 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 61 route objects.
• Listed in as-sets: AS-DURAND1-CUSTOMER, AS-HURRICANEV6, AS-ITXBR1, AS-KDDCUSTOMER2, AS-PROTON, AS-PROTON, AS-SET-BSCCL, AS-TELSTRA-INTL-CUSTOMERS, AS13335:AS-CUSTOMERS, AS198949:AS-SD, AS199524:AS-GCORE-DP, AS42476:AS-SWISSIX-CONNECTED, AS62371:AS-ALL, AS62371:AS-ALL.

Internet exchanges

• SwissIX — Zurich, Switzerland