I'm have read, read, and read some more.... I can't figure out how to do this.

If you have a specific area code, let's say area code 512, how could one get John the ripper to generate either a password list or directly feed into aircrack-ng the entire phone number set for area code 512.

Obviously all numbers would have to start with 512

5121111111
5121111112
5121111113
and so forth.

All help much appreciated.