A gem that provides parsing and output of phone numbers according to NANPA standards.
Phone numbers are not a big deal if you can validate the input at the time you've got a human right there. My enterprise tends not to have that ability, as we receive large files from clients with little or no validation done. Rather than abandon #s which don't validate, I wrote this to parse and normalize a string into a standard NANP phone number, possibly including an extension.
References: NANPA: North American Numbering Plan Administration nanpa.com/
The YAML file with the valid area codes and easily recognizable codes (like 911) can get out of date. To update your own copy, run:
support/make_yaml_nanpa.rb > data/nanpa.yaml
pn = Dialable::NANP.parse(“+1(800)555-1212 ext 1234”)
>> puts pn.to_s // Pretty output
>> puts pn.to_digits // Address book friendly
>> puts pn.to_dialable // PBX friendly
>> puts pn.extension
Also, pn.timezones and pn.relative_timezones should do the right thing.