What is an Access Point Name (APN)?

What is an Access Point Name (APN)?

An Access Point Name (APN) is a gateway between a mobile network (like your cellular carrier) and another computer network, often the public Internet. It essentially tells your mobile device how to connect to the internet or other data services on the carrier’s network.

How does it work?

  • When your phone or tablet tries to connect to the internet using mobile data, it uses the APN settings provided by your carrier.
  • The APN specifies the network path for all data connections.
  • It includes settings such as IP addresses, security protocols, and gateway info.

Why is APN important?

  • Correct APN settings are necessary for internet access, sending multimedia messages (MMS), or connecting to corporate VPNs.
  • Wrong or missing APN settings can cause your device not to connect to mobile data properly.

Typical APN Settings Include:

  • APN name (e.g., internet, wap , or a carrier-specific string)
  • Username and password (sometimes needed)
  • MMSC URL (for MMS messaging)
  • Proxy and port (optional)
  • Authentication type