Wow, EasyJet Plus has an AMAZING system for entering your phone number prefix.
(It's alphabetical by country.)
@evilrooster Wouldnt want to accidentally select the Canada +1 entry when you meant the USA +1 entry there, if it's validating area codes by country....
@prufrax They do have a few NANP area codes listed as separate IDD codes.
@maxh well, yeah. NANPA covers several countries, and some of the smallest have only a single area code. But the USA and Canada have NO separate unique numeric country prefix that just covers the one country.