APN settings for US carriers and MVNOs

The APN tells your phone how to reach your carrier's data network. A wrong value is the usual reason mobile data or picture messages stop working after you switch carriers or update your phone. Each page gives the values for Android and iPhone, the steps to enter them, and what to try if they do not work.

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What is an APN? APN settings and APN type explainedAn APN is the setting that tells your phone how to reach your carrier's data network. What each APN field means, what APN type does, and when to change one.

Find your carrier

Where a tile shows an APN, that is the value the carrier's own support page gives. Open the page for the MMS settings and the steps.

On Verizon's network

On AT&T's network

On T-Mobile's network

Closed or no longer sold

APN values last checked October 2026.