Proton AG

Data as of 2026-07-26
GLEIF verified
LEI
506700YLQ614KA7PB723
Registered name
Proton AG
Jurisdiction
CH
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks139 · 50,097 IPv4 addresses
IPv6 17 prefixes (largest 2a05:2700::/29)
Registered in Switzerland (105) · Russia (6) · Netherlands (3) · United Arab Emirates (3) · LT (2) · India (2)
All fragments 188 blocks across 22 clusters
Cluster ID213533726
RegistryAPNIC
Owner jurisdictionCH
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 506700YLQ614KA7PB723
Shared handles clustered on 38 shared RIR contact/maintainer handles
Registry names 9 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
145 -3 netblocks since 2026-07-05
2026-07-05 peak 148 2026-07-26

IP Ranges (139)

showing 50 of 139 — see all — ⬇ export CSV
CIDR Org name Registry Status Confidence
5.199.163.48/28 proton RIPE ASSIGNED PA ● high
5.199.163.128/28 proton RIPE ASSIGNED PA ● high
62.169.136.0/24 Proton AG BGP ANNOUNCED ● high
62.169.137.0/24 Proton AG BGP ANNOUNCED ● high
72.251.208.0/24 Proton AG BGP ANNOUNCED ● high
72.251.209.0/24 Proton AG BGP ANNOUNCED ● high
72.251.210.0/24 Proton AG BGP ANNOUNCED ● high
72.251.211.0/24 Proton AG BGP ANNOUNCED ● high
72.251.212.0/24 Proton AG BGP ANNOUNCED ● high
72.251.213.0/24 Proton AG BGP ANNOUNCED ● high
72.251.214.0/24 Proton AG BGP ANNOUNCED ● high
72.251.215.0/24 Proton AG BGP ANNOUNCED ● high
72.251.216.0/24 Proton AG BGP ANNOUNCED ● high
72.251.217.0/24 Proton AG BGP ANNOUNCED ● high
72.251.218.0/24 Proton AG BGP ANNOUNCED ● high
72.251.219.0/24 Proton AG BGP ANNOUNCED ● high
72.251.220.0/24 Proton AG BGP ANNOUNCED ● high
72.251.221.0/24 Proton AG BGP ANNOUNCED ● high
72.251.222.0/24 Proton AG BGP ANNOUNCED ● high
79.135.104.0/24 Proton AG BGP ANNOUNCED ● high
79.135.106.0/24 Proton AG BGP ANNOUNCED ● high
79.135.107.0/24 Proton AG BGP ANNOUNCED ● high
81.27.86.0/24 Proton AG BGP ANNOUNCED ● high
83.229.23.0/24 Proton AG BGP ANNOUNCED ● high
91.206.52.209/32 Proton AG PEERINGDB ASSIGNED ● high
93.88.156.0/24 Proton AG BGP ANNOUNCED ● high
94.190.195.0/24 Proton AG BGP ANNOUNCED ● high
95.36.96.0/24 Proton AG BGP ANNOUNCED ● high
95.36.98.0/24 Proton AG BGP ANNOUNCED ● high
103.69.224.0/24 Proton AG BGP ANNOUNCED ● high
103.149.68.0/24 PROTON APNIC ASSIGNED PORTABLE ● high
103.181.200.0/24 PROTON APNIC ASSIGNED PORTABLE ● high
104.234.212.0/24 Proton AG BGP ANNOUNCED ● high
109.224.244.0/24 Proton AG BGP ANNOUNCED ● high
109.224.247.0/24 Proton AG BGP ANNOUNCED ● high
134.82.68.0/24 Proton AG BGP ANNOUNCED ● high
134.82.69.0/24 Proton AG BGP ANNOUNCED ● high
134.82.70.0/24 Proton AG BGP ANNOUNCED ● high
134.82.71.0/24 Proton AG BGP ANNOUNCED ● high
151.243.141.0/24 Proton AG BGP ANNOUNCED ● high
155.117.189.0/24 Proton AG BGP ANNOUNCED ● high
159.26.96.0/24 Proton AG BGP ANNOUNCED ● high
159.26.97.0/24 Proton AG BGP ANNOUNCED ● high
159.26.98.0/24 Proton AG BGP ANNOUNCED ● high
159.26.99.0/24 Proton AG BGP ANNOUNCED ● high
159.26.100.0/24 Proton AG BGP ANNOUNCED ● high
159.26.101.0/24 Proton AG BGP ANNOUNCED ● high
159.26.102.0/24 Proton AG BGP ANNOUNCED ● high
159.26.103.0/24 Proton AG BGP ANNOUNCED ● high
159.26.104.0/24 Proton AG BGP ANNOUNCED ● high

IPv6 ranges (17)

showing the 15 largest allocations
CIDR
2a05:2700::/29
2a07:b940::/29
2a10:9000::/29
2a05:2701:f00::/44
2a05:2701:f10::/44
2a05:2701:f20::/44
2a05:2701:f40::/44
2a05:2701:f50::/44
2a07:b941:e10::/44
2a07:b941:e40::/44
2a07:b941:f00::/44
2a07:b941:f10::/44
2001:df3:1680::/48
2a05:2701:fe00::/48
2a05:2701:fe01::/48

Domains hosted in this network

what's this?
proton.me protonmail.ch protonvpn.com protonmail.com simplelogin.co

Network trust

what's this?
RPKI hygiene: B how networks compare →
82.8% of checked blocks have valid RPKI ROA coverage (120 of 145)
Possible discrepancies (2)

These blocks are registered to Proton AG but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

195.94.78.0/24 /24 authorized for AS8469 — CANCOM Managed Services GmbH
94.190.195.0/24 /24 authorized for AS25211 — "Euro Crypt" EOOD

NIC Handles

AM2355-AP AN612-AP AS199218 AS208172 AS209103 AS62371 AS62371 DUMY-RIPE DUMY-RIPE DUOMENUCENTRAS-MNT GARS-MNT KTTKNET-MNT +26 more