You can segment an outbound SMS broadcast from the Broadcasts Tab:
- Turn segmentation to "On"
- Select the metadata field you'd like to use
- Select the preferred operator (See: What operators can I use for segmenting my broadcasts?)
- Enter the desired metadata value(s) for your segment (i.e. "zipCode" + "is equal to" + value)
- Click the refresh icon to see the updated subscriber count.
If you'd like to add an additional segment, repeat these steps.
*For further information, you may find these articles helpful: