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US and Canadian area codes

372 area codes serve the United States and 55 serve Canada. Pick a state or province below, or open a code to see how its numbers are written and to check one against the numbering plan.

All of these share country code +1 under the North American Numbering Plan. An area code shows where a number began, not where its owner is today, because of number portability.

United States

Canada

  • Alberta

    • 368
    • 403
    • 587
    • 780
    • 825

  • British Columbia

    • 236
    • 250
    • 257
    • 604
    • 672
    • 778

  • Manitoba

    • 204
    • 431
    • 584

  • New Brunswick

    • 428
    • 506

  • Newfoundland and Labrador

    • 709
    • 879

  • Northwest Territories, Yukon and Nunavut

    • 867

  • Nova Scotia and Prince Edward Island

    • 782
    • 902

  • Ontario

    • 226
    • 249
    • 289
    • 343
    • 365
    • 382
    • 416
    • 437
    • 519
    • 548
    • 613
    • 647
    • 683
    • 705
    • 742
    • 753
    • 807
    • 905
    • 942

  • Quebec

    • 263
    • 354
    • 367
    • 418
    • 438
    • 450
    • 468
    • 514
    • 579
    • 581
    • 819
    • 873

  • Saskatchewan

    • 306
    • 474
    • 639

How a North American number is written

The same five forms apply to every area code. The examples use 212 and 555-0123, a number in the block reserved for fiction, so none of them reaches a real person.

FormatExampleUse
E.164 (store this)+12125550123The form to keep in a database and send to an API: plus sign, country code 1, ten digits, no spaces.
National(212) 555-0123How it is usually written and read inside the US and Canada.
Dashed212-555-0123Common on forms and business cards.
International+1 212-555-0123For readers outside the plan; the +1 replaces the dialing prefix of their own country.
Linktel:+12125550123The value of a click-to-call link. Always use the E.164 form here.

Rules every North American number follows

  • Ten digits after +1

    A number in the plan is three digits of area code, three of exchange and four of line number. With the country code 1 the full E.164 form is eleven digits.

  • First digit 2 to 9

    An area code never starts with 0 or 1, and the exchange (the three digits after it) follows the same rule.

  • No N11 area codes

    Codes that end in 11, such as 211, 311 and 911, are service codes, so none of them can be an area code.

  • 555-0100 to 555-0199 are fictional

    That block is set aside for films, books and examples. Use it in documentation; a real person will not answer.

  • +1 is shared

    The United States, Canada and many Caribbean countries all use country code 1, so +1 alone does not say which country a number belongs to; the area code does.

Source: North American Numbering Plan Administrator NPA report, file dated 10/17/2026, retrieved 2026-10-17. Source file. The pages cover geographic codes in the United States and Canada only.