IPIP Address Lookup
IPv4public

140.82.121.3

GitHub.com web load balancer • Managed by GitHub, Inc.

Profile updated: November 2026•Verified against IANA & RIR database allocations

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Overview of 140.82.121.3

140.82.121.3 is an authoritative frontend load balancer IP for GitHub.com hosted in the Ashburn (IAD), Virginia internet exchange ecosystem.

Classification & Technical Details

  • Protocol Version: IPv4
  • Address Classification: PUBLIC (Globally Routable on BGP)
  • Managing Authority / Registry: GitHub, Inc.
  • Primary ASN: AS36459
  • Authoritative Reverse DNS (PTR): lb-140-82-121-3-iad.github.com

Routing and Operational Purpose

The IP 140.82.121.3 is designated for GitHub.com web load balancer. 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.