Proxy connection guide

What is CGNAT?

What is CGNAT?: definition, mechanism, reproducible checks, and what it means for dedicated static residential operation.

Quick answer

Carrier-grade NAT shares one public address across many subscribers.

Direct definition
How the mechanism works
Reproducible checks
Static-residential implication

When this is the right fit

  • Direct definition
  • How the mechanism works
  • Reproducible checks

Who this page is for

What is CGNAT?: definition, mechanism, reproducible checks, and what it means for dedicated static residential operation.

Carrier-grade NAT shares one public address across many subscribers.

How it works, step by step

  1. 1

    Direct definition

    Carrier-grade NAT shares one public address across many subscribers.

  2. 2

    How it matters

    Pooled reputations: other subscribers' actions can affect you.

  3. 3

    Static-residential implication

    Dedicated static residential avoids pooling by definition - one buyer per address.

  4. 4

    Reproducible check

    Check the endpoint against known CGNAT ranges and reverse information.

Sources

Facts last reviewed 2026-09-01.

Failure interpretation

If the reproducible check fails, re-check endpoint values, protocol, and local interception before blaming the target.

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Frequently asked questions

Does what is cgnat? matter for managed accounts?

Yes - it is one of the signals that ties a profile to one identity. Verify it in the periodic connection audit.

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