How to REGEXP for numbers that begin with a specific number in MySQL?

I need to write a query using MySQL REGEXP that will find me rows that have a certain column begin with 11 or 12 or etc. I know I can use LIKE or LEFT(####,2) but would like to use the REGEXP option. My data is stored as 110001, 122122, 130013a and etc.

Update 1: To make it a bit clearer, I would like to express:

SELECT * FROM table WHERE column LIKE '11%' or column LIKE '12%' or column LIKE '30%'"     

With a REGEXP.