The best replacement for country code is zip code.

The best alternatives to country code are rated as following:
★★★★★  zip code
★★  area code

Your alternative for country code is not listed? Suggest!
Speaking about country code, one probably shouldn't forget about phone number.

Other search terms related to country code and their ratings are:
★★★★★ phone number
★ mobile number
★ number
mobile numbers
You have in mind a companion for country code and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of country code in all years. Click on graph for more.
country code
zip code
area code