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Target mobile subscribers only with Messaging Profile API update

22, Oct 2025

Telnyx messaging customers can now restrict outbound messages to mobile phones only. The new mobile_only parameter on the Messaging Profile API ensures that messages are delivered exclusively to mobile phone numbers.

How it works

The mobile_only parameter in the Messaging Profile API defaults to false. When creating or updating a Messaging Profile, update it to true. This configuration will send messages only to mobile numbers, automatically excluding landlines.

Key benefits

Reduced messaging costs: Filtering out landline numbers eliminates manual list scrubbing or external number lookups, lowering your overall messaging spend and improving return on investment.
Improved deliverability: Sending messages only to active mobile subscribers reduces undelivered traffic and increases overall delivery success.

Getting started

You can start sending exclusively to mobile numbers by including mobile_only: true when creating or updating a Messaging Profile via the Messaging Profile API.