What is an Autonomous System Number (ASN)?

Autonomous System Numbers (ASNs) are globally unique identifiers for IP networks. They are assigned by the same organizations which allocate IP addresses. Organizations which operate routable Internet networks, for example companies, universities, or government departments, have an ASN assigned to them.

INOC-DBA uses ASN's to uniquely associate phone lines with organizations. For example, the phone line "3856*111" uses ASN 3856 which is assigned to PCH, the maintainer of INOC-DBA. When a new organization is created in our system we ask you to provide at least one ASN which will uniquely identify it.

You can find out your organization's assigned ASNs by asking your IT department. If you are unable to determine your organization's ASN or you do not have one assigned, please contact operator@pch.net for assistance.

More information about ASN's can be found in the Autonomous System Numbers FAQ.