Most large countries have area codes, although there are some countries that do not. Some countries are just too small to need area codes, but some larger countries like Spain, Norway, and Denmark have changed over to a system where you dial any telephone number in the country the same way, no matter whether you're next door or hundreds of kilometers away.
Countries that DO have area codes (partial list): USA, Canada, Mexico, Brazil, Argentina, Chile, Venezuela, UK, Ireland, Germany, Austria, South Africa, Egypt, Algeria, Burkina Faso, Eritrea, Ethiopia, Ghana, Nigeria, Libya, Zimbabwe, Israel, Jordan, Syria, Turkey, Russia, India, China, Japan, Korea, Vietnam, Australia, New Zealand, Philippines, Indonesia, etc.
Countries that DO NOT have area codes (partial list): Monaco, San Marino, Andorra, Liechtenstein, Luxembourg, Spain, Portugal, Denmark, Norway, Costa Rica, Burundi, Botswana, Benin, Central African Republic, Cote d'Ivoire (Ivory Coast), Cameroon, Cape Verde, Guinea, Gambia, Equatorial Guinea, Guinea-Bissau, Comoros, Liberia, Mali, Mauritius, Niger, Rwanda, Senegal, Sao Tome & Principe, Togo, Fiji, Vanuatu, etc.
The size of a country is not necessarily an indication of how many area codes it will have. Australia has 4 area codes, but Germany has 5,200.
Yes, different countries usually have different country codes, and each country code can have its own system of area codes.
There are about 300 area codes in the United States, plus 30 in Canada and 20 in other countries and territories in or near the Caribbean.
www.wtng.info is the most comprehensive resource for this.
There are various countries that might have 077 as an area code for domestic calls, or that have area codes beginning with 077. You need to be more specific.
Your question is not clear. "STD codes" (Subscriber Trunk Dialling) is another term for telephone area codes in some countries, including the UK, Ireland, India, Pakistan, South Africa, and other formerly British countries around the world. There are tables of area codes for each country. See the related links below for examples.
Area codes cannot start with a 1 or 0 in the North American Numbering Plan.
It depends on what country. There are lists of STD Codes (telephone area codes) for different countries on a variety of websites. See the related links below for a few examples.
The Nile River flows through several countries, each with its own telephone country code, and flows through several different area codes within those countries.
Area codes in the United States and Canada were originally assigned in 1947 by the Bell System. New area codes are assigned by the North American Numbering Plan Administration, in consultation with state and provincial regulators. Area codes in the United Kingdom were originally assigned by the post office, which was responsible for developing the telephone system. New area codes are assigned by Ofcom.
Wikipedia has a listing of all area codes. You can find a link to the US list below. Which country did you want? Link to the UK list added.
Only two countries use ZIP Codes: the United States and the Philippines. Many other countries have postal codes that use other names (postcodes, PIN Codes, etc.). Some countries do not use postal codes at all.
If you look at maps, you will not find area codes. Area codes can be found on area code locator websites. Another place to find area codes is in the telephone directory.