IPv4public
208.67.220.220
Cisco OpenDNS secondary resolver • Managed by Cisco OpenDNS LLC
Profile updated: November 2026•Verified against IANA & RIR database allocations
Live Network Diagnostic
Overview of 208.67.220.220
208.67.220.220 provides backup DNS resolving for OpenDNS enterprise and home networks.
Classification & Technical Details
- Protocol Version: IPv4
- Address Classification: PUBLIC (Globally Routable on BGP)
- Managing Authority / Registry: Cisco OpenDNS LLC
- Primary ASN: AS36692
- Authoritative Reverse DNS (PTR):
resolver2.opendns.com
Routing and Operational Purpose
The IP 208.67.220.220 is designated for Cisco OpenDNS secondary resolver. In modern networking, proper identification of such infrastructure nodes is essential for diagnosing traceroute latency, verifying forward-confirmed reverse DNS (FCrDNS), and establishing trustworthy security policies.