New and improved way to Identify Kenyan Phone Number Service provider

service_providerV2.php

<?php

// Gotten from https://en.wikipedia.org/wiki/Telephone_numbers_in_Kenya#Mobile_phone_numbers
$providers = [
    '100' => 'Airtel',
    '101' => 'Airtel',
    '102' => 'Airtel',
    '110' => 'Safaricom',
    '111' => 'Safaricom',
    '701' => 'Safaricom',
    '702' => 'Safaricom',
    '703' => 'Safaricom',
    '704' => 'Safaricom',
    '705' => 'Safaricom',
    '706' => 'Safaricom',
    '707' => 'Safaricom',
    '708' => 'Safaricom',
    '710' => 'Safaricom',
    '711' => 'Safaricom',
    '712' => 'Safaricom',
    '713' => 'Safaricom',
    '714' => 'Safaricom',
    '715' => 'Safaricom',
    '716' => 'Safaricom',
    '717' => 'Safaricom',
    '718' => 'Safaricom',
    '719' => 'Safaricom',
    '720' => 'Safaricom',
    '721' => 'Safaricom',
    '722' => 'Safaricom',
    '723' => 'Safaricom',
    '724' => 'Safaricom',
    '725' => 'Safaricom',
    '726' => 'Safaricom',
    '727' => 'Safaricom',
    '728' => 'Safaricom',
    '729' => 'Safaricom',
    '730' => 'Airtel',
    '731' => 'Airtel',
    '732' => 'Airtel',
    '733' => 'Airtel',
    '734' => 'Airtel',
    '735' => 'Airtel',
    '736' => 'Airtel',
    '737' => 'Airtel',
    '738' => 'Airtel',
    '739' => 'Airtel',
    '740' => 'Safaricom',
    '741' => 'Safaricom',
    '742' => 'Safaricom',
    '743' => 'Safaricom',
    '745' => 'Safaricom',
    '746' => 'Safaricom',
    '747' => 'Faiba 4G',
    '748' => 'Safaricom',
    '750' => 'Airtel',
    '751' => 'Airtel',
    '752' => 'Airtel',
    '753' => 'Airtel',
    '754' => 'Airtel',
    '755' => 'Airtel',
    '756' => 'Airtel',
    '757' => 'Safaricom',
    '758' => 'Safaricom',
    '759' => 'Safaricom',
    '763' => 'Equitel',
    '764' => 'Equitel',
    '765' => 'Equitel',
    '768' => 'Safaricom',
    '770' => 'Orange',
    '771' => 'Orange',
    '772' => 'Orange',
    '773' => 'Orange',
    '774' => 'Orange',
    '775' => 'Orange',
    '776' => 'Orange',
    '780' => 'Airtel',
    '785' => 'Airtel',
    '786' => 'Airtel',
    '787' => 'Airtel',
    '788' => 'Airtel',
    '789' => 'Airtel',
    '790' => 'Safaricom',
    '791' => 'Safaricom',
    '792' => 'Safaricom',
    '793' => 'Safaricom',
    '794' => 'Safaricom',
    '795' => 'Safaricom',
    '796' => 'Safaricom',
    '797' => 'Safaricom',
    '798' => 'Safaricom',
    '799' => 'Safaricom',
  ];

$matches = null;
$phone = '254724123456';
//$phone = '0724123456';
//$phone = '+254724123456';
/*
* Get this part of the number 724 ===> (+|254 [724] 123456) | ( 0 [724] 123456)
* and uses it to get the Service provider from the array above.
*/
$returnValue = preg_match('/(\+?254|0|^)([0-9]{3})[0-9]{6}\z/', $phone, $matches);

if($returnValue) 
{
  // Is a valid phone number
  echo "{$phone} is a {$providers[$matches[2]]} line."; // --> 254724123456 is a Safaricom line.
}else{ 
  // Is not a valid phone number
  echo "No Match Found";
}