What is the format of telephone numbers in America?

The American telephone number consists of ten digits, the first three digits are the area code, the middle three digits are the exchange code, and the last four digits add up. Mobile phones in America are as inseparable as fixed lines.

What is the country code? ( 1)+? For example, area code (* * *) = telephone number (* * * *)? This is the phone in California.

Extended data:

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When making a long distance call, you need to dial all ten yards. Dial 1 first.

If you make a local call, just dial the exchange code and the last four digits. Call the operator on line 0; The directory number is 555- 12 12.

The number of the information desk is the same everywhere in the United States. The long-distance telephone number is 1- area code -555- 12 12.

When making an international call, the dialing sequence is: international code-country code-city code-local telephone number. XXX-XXX-XXXX code-area code-telephone number.