What Is Autonomous System Number?

October 9, 2023

An Autonomous System Number (ASN) is a unique numerical identifier for a network that participates in Internet routing. The numbers play a pivotal role in routing network traffic over the internet.

Regional Internet Registries (RIRs) manage ASNs, which are central to Border Gateway Protocol (BGP) routing.

Anastazija is an experienced content writer with knowledge and passion for cloud computing, information technology, and online security. At phoenixNAP, she focuses on answering burning questions about ensuring data robustness and security for all participants in the digital landscape.