Twilio available phone search by prefix - twilio

Question

How do I search for phone number by prefix using the API? The Twilio "Buy A Number" tool lets you search for begins with term, but I don't see a way to do it using the API.
You can do:
AvailablePhoneNumbers/US/Local?Contains=703%
But that still finds numbers with 703 anywhere, not just the prefix. Only way I can see to do this is using the * single number search, a la:
AvailablePhoneNumbers/US/Local?Contains=703*******
But then how do I make that generic to any country? Have a lookup table of phone number lengths for every country so I can add the appropriate number of *'s?

Answer 1

Twilio provides this information in their API docs (Find phone numbers by number pattern).
For example using PHP:
<?php
// Get the PHP helper library from twilio.com/docs/php/install
require_once('/path/to/twilio-php/Services/Twilio.php'); // Loads the library
// Your Account Sid and Auth Token from twilio.com/user/account
$sid = "ACde6f132a3c49700934481addd5ce1659";
$token = "{{ auth_token }}";
$client = new Services_Twilio($sid, $token);
$numbers = $client->account->available_phone_numbers->getList('US', 'Local', array(
"Contains" => "510555****"
));
foreach($numbers->available_phone_numbers as $number) {
echo $number->phone_number;
}