Regex to check number starts with '078'

Question

I need to validate a Textbox in my Asp.Net application where the user can enter mobile number and it should starts with 078 and should contain 10 digits.

Sample:

Answer 1

Why don't you try this? The below regex would validate for phone numbers which should be starts with 078 followed by any 7 digit number.

^078\d{7}$

DEMO

Explanation:

• ^ Asserts that we are at the start.
• 078 Matches exactly the digits 078.
• \d{7} Matches the following 7 digits.
• $ End of the line.

IDEONE

Answer 2

^078[0-9]{7}$

This is a bit faster than \d if we use only numbers here.