Glossary

ASN: Definition and How It Works

Autonomous System Number, an identifier for a network that reveals whether an IP belongs to an ISP or a data center.

Autonomous System Number, an identifier for a network that reveals whether an IP belongs to an ISP or a data center. This page explains what it means, when it matters and how it relates to choosing a proxy.

What asn means

Autonomous System Number, an identifier for a network that reveals whether an IP belongs to an ISP or a data center.

Why it matters when choosing a proxy

Understanding asn helps you compare providers accurately and avoid paying for the wrong option. It shows up on pricing pages, dashboards and API docs, so knowing the term saves confusion when you buy.

  • ISP proxy — A static residential IP hosted in a data center. It combines the speed of datacenter infrastructure with a residential IP footprint.
  • Concurrency — The number of simultaneous connections or threads a proxy plan allows at once.
  • Subnet — A range of IP addresses that share a network prefix; proxies from the same subnet can be blocked together.
  • IP whitelisting — Authorizing specific IP addresses to use a proxy without a username and password.

Frequently asked questions

Autonomous System Number, an identifier for a network that reveals whether an IP belongs to an ISP or a data center.

It helps. Knowing what asn means lets you compare plans accurately and pick the option that fits your task instead of guessing from marketing copy.

Have a question about asn: definition and how it works? Email us at info@proxyguidez.com — we are happy to help.

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