I'm looking at a database of mobile numbers and am trying to find errors. 

For example, mobile numbers begin with '04', so to test for errors, I can query:

```
SELECT DISTINCT Names.Phone_M FROM Names
WHERE Names.Phone_M NOT LIKE '04%'

```

In testing for errors, I noticed some of the data contains text. Is there a way of filtering the data so it only brings up entries than contain some kind of text as well as numbers? i.e. If an entry is '0400000000 - John', can I write a query that will pick this up without simple trial and error?

Thanks