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Quad9 IP Ranges

Quad9 is a non-profit privacy-focused DNS resolver operating from Switzerland. It provides recursive DNS with optional malware blocking (9.9.9.9) and does not log or sell user query data.

DNS
Provider
Quad9
Primary ASN
AS19281
Category
DNS
Headquarters
Zurich, Switzerland
IP Geolocation LookupWHOIS LookupVPN Leak Test

Known IP ranges

The following IP prefixes are registered to Quad9 or commonly associated with their network. Full prefix sets change over time — use WHOIS Lookup for the authoritative current record for any specific IP.

9.9.9.0/24
149.112.112.0/24
9.9.9.10/32
149.112.112.10/32
9.9.9.11/32
149.112.112.11/32

What does a Quad9 IP mean in a privacy test?

A Quad9 IP in a DNS leak test (AS19281) means your DNS queries resolve via the Quad9 privacy resolver. This is a positive privacy outcome if you deliberately configured Quad9 — it is not a DNS leak.

Related tools

IP Geolocation LookupLook up any Quad9 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.AS19281 — Quad9 ASN pageMore details about this network.DNS Leak TestRelated privacy resource.What Is a DNS Leak?Related privacy resource.

Frequently asked questions

What IP addresses does Quad9 use?

Quad9 primary resolver is 9.9.9.9 (malware blocking) in 9.9.9.0/24. The alternate address is 149.112.112.112 in 149.112.112.0/24. Quad9 also provides 9.9.9.10 (no blocking) and 9.9.9.11 (with ECS support). IPv6: 2620:fe::fe and 2620:fe::9.

Is Quad9 safer than Google or Cloudflare DNS?

Quad9 is operated by a non-profit in Switzerland with a strict privacy policy: it does not log querying client IP addresses and does not sell data. Compared to Google DNS (commercial) and Cloudflare 1.1.1.1 (commercial), Quad9 has stronger structural independence from commercial interests.

Does Quad9 block malicious domains?

Yes. The 9.9.9.9 resolver blocks known malicious domains using threat intelligence from over 20 cybersecurity partners. Queries to blocked domains return NXDOMAIN. The 9.9.9.10 resolver provides the same privacy without blocking.

How do I look up a Quad9 IP address?

Enter 9.9.9.9 or 149.112.112.112 in MyIPScan IP Geolocation Lookup. They return AS19281 (Quad9 Networks Inc.) with Zurich, Switzerland as the organization location.

What ASN does Quad9 use?

Quad9 uses AS19281. The AS19281 page on MyIPScan covers the Quad9 network. In a DNS leak test, AS19281 appearing as the resolver indicates Quad9 DNS handles your queries.