AS4515: the PCCW-AS-AP PCCW IMS Ltd PCCW Business Internet Access network

AS4515 is an internet Autonomous System operated by PCCW-AS-AP PCCW IMS Ltd PCCW Business Internet Access (Hong Kong). Here is what that means and why this number may show up when you investigate a connection on your network.

What is AS4515?

An Autonomous System (ASN) is a block of networks under a single control with its own routing policy on the internet. The number AS4515 was assigned to PCCW-AS-AP PCCW IMS Ltd PCCW Business Internet Access by an RIR (regional internet registry). All traffic entering or leaving that network is announced under this number.

Reach on the internet

AS4515 currently announces 233 IPv4 block(s), totaling about 548.4 thousand addresses (548,352 in all), registered in Hong Kong. Services from PCCW-AS-AP PCCW IMS Ltd PCCW Business Internet Access are reached through these addresses.

What it means to see AS4515 on your network

When you investigate where a connection from your computer or phone comes from (or goes to), you may find AS4515. That means the other end sits on the PCCW-AS-AP PCCW IMS Ltd PCCW Business Internet Access network (Hong Kong). It can be legitimate — a cloud service, an ISP, a CDN — or an unexpected connection worth checking.

How to see every connection and network your devices reach

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