$ query “AS208172” --type=asn → 1 result(s)
AS208172 — PV-HOSTED
Proton AG
AS208172 is an enterprise stub network operated by Proton AG, registered in Switzerland since 2025. The network announces a respectable 12 800 IPv4 addresses. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇨🇭 Switzerland
- Category
- Business
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- May 20, 2025
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 50 / 12
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 12 800
- Largest IPv4 Prefix
- /19 (8 192 addresses)
- Geolocated Countries
- 🇺🇸 US (4 IPs), 🇨🇭 CH (1 IPs), 🇳🇱 NL (3 IPs), 🇵🇹 PT, 🇩🇪 DE, 🇨🇦 CA, 🇭🇷 HR, 🇪🇸 ES, 🇳🇿 NZ, 🇧🇦 BA, 🇫🇷 FR, 🇬🇧 GB, 🇵🇱 PL, 🇦🇷 AR and 20 more
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 2 flagged IPs out of 12 800 total (0.02%)
Connectivity Summary
- Upstream Providers
- 3 upstream autonomous systems providing transit
- Peers
- 0 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 0 downstream autonomous systems buying transit
- Degree
- 3 unique BGP neighbors (providers + customers + peers)
- Reach
- 0 — customer cone size measuring network influence
- Degree Rank
- #26 955
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (50 total)
- 159.26.96.0/19 (8 192 addresses)
- 205.147.16.0/22 (1 024 addresses)
- 72.251.208.0/23 (512 addresses)
- 72.251.212.0/23 (512 addresses)
- 72.251.216.0/23 (512 addresses)
- 205.147.28.0/23 (512 addresses)
- 72.251.210.0/24 (256 addresses)
- 72.251.214.0/24 (256 addresses)
- 81.27.86.0/24 (256 addresses)
- 205.147.22.0/24 (256 addresses)
- 205.147.27.0/24 (256 addresses)
- 205.147.30.0/24 (256 addresses)