Twilio SMS: Change the "From" number or Sender ID for Sending SMS Messages
Changing the "From" number or Sender ID for outgoing SMS messages can be accomplished by changing the From parameter in your API requests.
An alphanumeric sender ID of up to 11 characters can be used for sending messages to all supported countries where pre-registration is not required.
Here’s an example cURL script - notice the From parameter updated in line 4.
curl -XPOST https://api.twilio.com/2010-04-01/Accounts/ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/Messages.json \
-d "Body=Hello there" \
-d "To=+12685551234" \
-d "From=MyCompany" \