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How many phone numbers may I verify?
You may verify as many phone numbers to be used as your caller ID as you would like, free of charge.
Which countries does Twilio have phone numbers in and what are their capabilities?
Why would I want a short code instead of sending SMS from a regular US phone number or phone numbers?
How do I search for phone numbers?
Can I forward calls received on Twilio toll free numbers to other non-Twilio toll free numbers?
What types of phone numbers can I not dial?
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