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Feb 28, 2024 · Here are some examples of US area codes: 212 for New York City, 312 for Chicago, and 415 for San Francisco. Prefix: The prefix, also known as the ‘exchange code’ or ‘central office code,’ follows the area code and is the next three digits in a US phone number. It further refines the location of the phone number within the area code.
Mar 12, 2024 · Here’s a United States phone number example, (702)-234-5566. Here, 702 is the area code, and 234-5566 is the seven local phone number. To call an american phone number from abroad, you’ll need to use the international code for the US, which is 1. Exit code – US country code (1) – area code – 7-digit phone number.
- 205, 251, 256, 334, 938
- 229, 404, 470, 478, 678, 706, 762, 770, 912
- 479, 501, 870
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3. Include the first three digits of the local number (prefix), which identifies a smaller region within the area code. 4. Add the last four digits of the local number, unique to each individual phone line within a specific prefix. Format the complete phone number as: 1 XXX XXX XXXX, where each “X” represents a digit.
Feb 2, 2024 · Telephone area codes in the USA follow a standard format of three digits ranging from 200 to 999. The first digit of an area code cannot be zero or one since these numbers are reserved for special purposes like toll-free numbers (e.g., 800) or emergency services (e.g., 911). The second digit can range from two to nine, while the third digit can ...
Explain how area codes were initially implemented, how they expanded, and the logic behind their three-digit format. This adds context beyond just the practical guide. Step-by-Step Dialing Instructions; Format Breakdown: Present an example of a full USA phone number (with country code, area code, and local number) clearly formatted.
So, the complete international dialing format for a US phone number would look like this: Exit Code + 1 + Area Code + Central Office Code + Line Number. For example, if you’re calling from the UK to a US number in New York City with the area code 212 and the number 555-1234, you’d dial: 00 + 1 + 212 + 555-1234.
There are 446 area codes in the world: 353 in the US, 52 in Canada, 20 non-geographic, and 21 others. Most of the other area codes are in the Caribbean. However, some are located in the Pacific including 670 (Northern Mariana Islands), 671 (Guam), and 684 (American Samoa). California is the state with the most area codes at 37 followed by Texas ...
