The present invention is a method, system and software application for wireless phone number validation. The method comprises generally (1) engaging an external server to send API request to validation server with phone number and carrier information; (2) determining validation script method based on specific carrier; (3) initializing a first automated script sequence based on said specific carrier; (4) a means to navigate and log on to said specific carrier website; (5) running said first automated script sequence through said website to validate said phone number; (6) extracting validation response from said website; and (7) returning said validation response to said external server. The system comprises generally an external server to send and receive a validation request and response and a software application for validating a wireless number program on customer's wireless carrier to extract a validation response from wireless carrier's website.