Need to call the United States or any NANP country? Did you know that the United States is one of 24 countries and is part of the North American Numbering Plan (NANP)? The North American numbering plan consists of countries where “1” is the common country code. The very first phone call made with the North America code was in 1951. Find out below what state! It's easy to call the USA from any country if you know how to do it. Here is a simple two-step process for calling any NANP country; Step 1 is how to recruit NANP between countries, and step 2 is how to recruit any NANP from any country.
First you need to know which countries are part of the Norman numbering plan. Countries that are included; Anguilla, Antigua and Barbuda, Bahamas, Barbados, Bermuda, British Virgin Islands, Canada, Cayman Islands, Dominica, Dominican Republic, Grenada and Carriacou, Jamaica, Montserrat, St. Kitts and Nevis, St. Lucia, St. Vincent and The Grenadines, the Turks and Caicos, the United States and its five territories; Guam, Northern Mariana Islands, Puerto Rico, US Virgin Islands and American Samoa (self-governing since 1967).
NANP history
The general authority that assigns country codes to all countries is the International Telecommunication Union (ITU). ITU lists all country codes, including NANP countries, in a document entitled “ITU-T ITU-T Standardization ITU”. In 1947, NANP was created and adopted by AT & T to facilitate a direct call. Without a standardized dialing system, telephone calls in the United States and around the world would be misdirected. The very first direct dialing NANP phone call was made from Englewood, New Jersey, in Alamedo, California, on November 10, 1951. This call marks the beginning of a direct telephone call to the coast from the US coast.
Common Features of the North American Numbering Plan
- “1” = This country code is the same for all NANP countries
- 3 digits = area code
- 7 digits = local station number
- 10 digits = total number of digits, not counting "1",
Interesting additional facts:
- Area code: the first digit can contain only any number from 2 to 9.
- Local subscriber number: the first digit of the subscriber number can only be any number from 2 to 9.
- The first area code: for introduction to NANP was in New Jersey; "201". At that time, an average of “0” and “1” was considered sufficient to cover all of the United States and Canada. This way of thinking quickly changed his mind and rescheduled! California only has 26 area codes; 209, 310, 323, 408, 415, 424, 510, 530, 559, 562, 619, 626, 650, 661, 707, 714, 760, 805, 818, 831, 858, and 949. California is just one of many popular states with a growing population, which translates into more area codes that will be implemented in the future.
- The designation of the area code for the Initial Numbering Plan in 1947 included all states, with the exception of Alaska, the Hawaiian Islands, Northern Canada and the Caribbean. States with only one area code were “0” as the average number. States and provinces, which included several area codes, had “1” as the average number.
Step 1: How to call the USA or from 24 NANP countries from a NANP country Call between the North American Numbering Plan countries Dial: 1 + (3-digit area code) + 7 digits (local number).
American Samoa: 1 (684); Anguilla: 1 (264); Antigua and Barbuda: 1 (268); Bahamas: 1 (242); Barbados: 1 (246); Bermuda: 1 (441); British Virgin Islands: 1 (284); Canada: 1 (city code); Cayman Islands: 1 (345); Dominica: 1 (767); Dominican Republic: 1 (809/829); Grenada and Carriacu: 1 (473); Guam: 1 (671); Jamaica: 1 (876); Montserrat: 1 (664); Northern Mariana Islands: 1 (670); Puerto Rico: 1 (787/939); Saint Kitts and Nevis: 1 (869); Saint Lucia: 1 (758); Saint Vincent and the Grenadines: 1 (784); Trinidad and Tobago: 1 (868); Turks and Caicos: 1 (649); US Virgin Islands: 1 (340); US: 1 (US code);
All 50 states in the USA, all 13 provinces / territories of Canada and the remaining 22 NANP countries are part of the North America Numbering Plan (NANP). When calling between NANP countries, there is no need to dial the international access code prefix "011". An international access code, also known as an “IAC”, is a code that is required to dial out from a country. Although the 24 countries listed above are included in the same numbering plan, long-distance payments may apply when dialing numbers between these countries.
Step 2: How to call the USA or any NANP country from another country outside the North American Numbering Plan (NANP); Call any of the above countries from another country outside the numbering plan;
Dial: IAC + 1 + 3-digit area code + 7 digits (local number).
IAC = International Access Code; IAC must dial "exit" from the country.
Thus, when calling to the United States, you need to remember only two things. First step, are you calling from the North American Numbering Plan? This method indicates dialing “1” before the remaining 10 digits. The second step, are you calling from outside the North American numbering plan? The second method will point to dialing an international access code so that it can dial from the country. This will be followed by "1" and the remaining 10 digits.
Get a complete list of codes for calling to the USA for calls to the USA from any country in the world!
