Thanks MCRunning for posting that. I was looking for a good link to post for that information.
@micfire: I have built in a feature to utilize txt2day's provider lookup (
Txt2day Cell Phone Provider Lookup). You won't have to leave the software to use that utility. You can try it for yourself in the demo to see if it works to your liking. I have tested quite a few numbers that I personally know the provider for, and it identified them correctly every time.