Is there a list of maximum file sizes for MMS messages for the major carriers in the US?


Daniel Tolbert


  • ATT: 1MB
  • Verizon: 1.5MB
  • Sprint: 2MB
  • T-Mobile: 1MB

The file sizes above will generally be passed along to the wireless carriers, but due to differences in handsets, file types, and transcoding, Bandwidth recommends you only send attachments that are no larger than 500KB to ensure the best chance of delivery.

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