AS39351 31173 Services AB (Mullvad parent)
vpn · based in Sweden · IPLogs default verdict: VPN detected
- ASN
- AS39351
- Name
- 31173 Services AB (Mullvad parent)
- Category
- vpn
- Country
- Sweden
- IPLogs verdict
- VPN detected
- Proxy backbone
- No
About 31173 Services AB (Mullvad parent)
31173 Services, Mullvad's infrastructure AS. Owns some of the Mullvad relay fleet directly.
How IPLogs classifies AS39351
When the detection engine sees an IP that routes through AS39351, it checks three lists: (1) the curated VPN-provider ASN list, (2) the datacenter / hosting ASN list, and (3) the trusted CDN allowlist. Matches produce one of vpn_asn, dc_ip, or no flag respectively. Keywords in the org name (e.g. "vpn", "proxy", "anonym") may also trigger vpn_org_keyword even for unknown ASNs.
Use the ASN as a shortcut when you want to block a whole hosting provider at the edge rather than maintaining a per-IP list.
Authoritative sources for AS39351
Third-party registries where you can verify the announcements, peer relationships, and WHOIS registration for this ASN.
Related ASNs
Other vpn ASNs in Sweden catalogued by IPLogs.
Frequently asked questions about AS39351
+Is AS39351 (31173 Services AB (Mullvad parent)) a VPN, datacenter, or residential network?
IPLogs classifies 31173 Services AB (Mullvad parent) (AS39351) as a commercial VPN network based in Sweden. The default verdict for any IP that routes through this ASN is "VPN detected".
+Who operates AS39351 and where is it registered?
31173 Services AB (Mullvad parent) (AS39351) operates in Sweden.
+How do I check or block AS39351 traffic?
Send any suspect IP to the IPLogs API — POST https://iplogs.com/v1/check with body {"ip":"<ip>"} — and the response reports the originating ASN plus whether it matched the VPN, datacenter, or CDN lists. To block a whole hosting network at the edge, filter on AS39351 instead of maintaining a per-IP list. Copy-paste recipes for Cloudflare WAF, Nginx, and Stripe Radar are at /guides/block-vpn-traffic.