APNIC (the Asia Pacific Network Information Centre) is the Regional Internet Registry for the Asia Pacific region, responsible for distributing public Internet address space and related resources, including Autonomous System Numbers (ASNs), in the region and for coordinating the development and implementation of policies to manage those resources.  

An Autonomous System (AS) is a connected group of one or more IP prefixes run by one or more network operators under a single and clearly defined routing policy. An Autonomous System Number (ASN) is a unique two- or four-byte number associated with an AS. The ASN is used an identifier to allow the AS to exchange dynamic routing information with other Autonomous Systems. Exterior routing protocols such as the Border Gateway Protocol (BGP) requires ASNs to exchange information between networks.

Two byte AS numbers are AS numbers in the range: 0 - 65535

APNIC approved two-byte Autonomous System (AS) number for HEC are as follows:

AS number: AS45773
AS name: HECPERN-AS-PK