TelephoneCodes.com

exUSSR Phone Codes
Includes all cities of Russia, Ukraine, Belorussia, Moldova, Lithuania, Latvia, Estonia, Kazakhstan, Georgia, Uzbekistan, Azerbaijan, Armenia, Kirgizia, and Tadjikistan.
phonecodes.narod.ru/

Islands Philippines - Philippine Telephone Area Codes
Provides a list of telephone codes for Philippine cities, destinations and provinces.
phone-codes.islandsphilippines.com/

FAQs on Area Codes from FCC
The Federal Communications Commission answers frequently asked questions regarding area codes.
www.fcc.gov/

North American Numbering Plan Administration: Area Codes
Find North American codes by a map, number, or location.
www.nanpa.com/

Area Codes Listing
Lists North American area codes by number, region and time zone.
www.bennetyee.org/

CE Service Area Code Changes
Lists of exchanges that have moved or are moving from one North American area code to another.
frodo.bruderhof.com/

Quick Area Code Finder
Offers pulldown menus to lookup by city or area code.
freebizadsweb.com/

International Dialing Codes
International and national direct dialing prefixes and instructions.
kropla.com/

International Calling Codes
Listing of international telephone country and city codes.
www.the-acr.com/

LincMad
Information about North American area codes, featuring changes and historical data.
www.lincmad.com/