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Proton VPN IP Ranges

Proton VPN is a Swiss privacy-focused VPN operated by Proton AG, the company behind Proton Mail. It runs network infrastructure under AS62371, publishes fully open-source apps, and undergoes independent security audits.

VPN
Provider
Proton VPN
Primary ASN
AS62371
Category
VPN
Headquarters
Geneva, Switzerland

By: Katia Belokon · Updated June 2026

IP Geolocation LookupWHOIS LookupVPN Leak Test

Known IP ranges

The following IP prefixes are registered to Proton VPN or commonly associated with their network. Full prefix sets change over time — use WHOIS Lookup for the authoritative current record for any specific IP.

185.70.40.0/22
185.159.156.0/22
79.135.104.0/22
91.229.20.0/22

What does a Proton VPN IP mean in a privacy test?

Seeing a Proton VPN IP (AS62371) as your visible exit confirms your traffic leaves through the Proton network. This is the expected result when connected to Proton VPN and confirms the tunnel is routing correctly.

Related tools

IP Geolocation LookupLook up any Proton VPN IP for location and ASN data.WHOIS LookupView the registered CIDR block and organization for any IP.VPN Leak TestCheck if your VPN is leaking your real IP, DNS, or WebRTC data.Proton VPN self-test pageMore details about this network.VPN Leak TestRelated privacy resource.What Is a VPN Leak?Related privacy resource.

Frequently asked questions

What IP ranges does Proton VPN use?

Proton VPN announces ranges under AS62371 including 185.70.40.0/22 and 185.159.156.0/22. Proton operates many servers on its own IP space and also uses trusted data-center partners for regional coverage.

Why does a Proton VPN IP confirm my VPN is working?

If your visible IP shows AS62371 (Proton AG) while connected to Proton VPN, your traffic correctly exits through the Proton network. Seeing this ASN is a reliable confirmation the tunnel is active.

Is Proton VPN based in a privacy-friendly country?

Proton VPN is based in Switzerland, which has strong privacy laws and is outside EU and US jurisdiction. Proton operates under a published no-logs policy that has been independently audited.

How do I look up a Proton VPN IP address?

Use MyIPScan IP Geolocation Lookup. Proton VPN IPs return AS62371 (Proton AG) with the data-center city. Use the VPN Leak Test to confirm your IP, DNS, and WebRTC all show Proton details while connected.

What ASN does Proton VPN use?

Proton VPN uses AS62371, registered to Proton AG. Owning its own ASN lets Proton control routing for a large part of its fleet.