Evolution of North American Area Codes, 1947 to 2021

The following chart shows the original 86 area codes, plus the regions that were added later, and the area codes now used in those regions. Many of the new area codes were created by simple geographic splits, but in several cases the existing boundary was realigned and/or a new area code was created from portions of two old area codes. However, area code splits have entirely given way to overlays: the last split in the United States was in 2007, and the last split in Canada was in 1999. Overlay codes are shown in red. Updated 2021-03-17.

(Also check the cumulative listing of area code splits from 1995 to 2007)

Original Location Area codes as of 2021
(* portion; # overlay planned for 2021-2023)
201 NJ 201, 551, 609, 732, 848, 856, 862, 908, 973
202 DC 202* (no longer includes any federal offices outside D.C. proper), 771#
203 CT 203, 475, 860, 959
204 MB 204, 431
205 AL 205, 251, 256, 334, 938
206 WA 206, 253, 360, 425, 509, 564
207 ME 207
208 ID 208, 986
212 NY 212, 332, 347, 646, 718, 917, 929
213 CA 213, 310, 323, 424, 562, 619, 626, 657, 714, 747, 818, 840, 858, 909, 949, 951, 442*, 661*, 760*, 805*, 820*
214 TX 214, 430, 469, 682, 817, 903, 945, 972, 254*, 940*
215 PA 215, 267, 445, 484, 610
216 OH 216, 234, 330, 440
217 IL 217, 309*, 618*, 447#,
218 MN 218*, 320*, 507*
301 MD 240, 301, 410, 443, 667
302 DE 302
303 CO 303, 719, 720, 970
304 WV 304, 681
305 FL 239, 305, 321 ‎[§ note]‎, 352, 386, 407, 448#, 561, 656#, 689, 727, 754, 772, 786, 813, 850, 863, 904, 941, 954
306 SK 306, 474#, 639
307 WY 307
312 IL 224, 312, 331, 630, 708, 773, 847, 872
313 MI 248, 313, 586, 734, 810, 947, 517*
314 MO 314, 573, 636, 417*, 660*
315 NY 315, 607, 680, ?518*, ?838*
316 KS 316, 620
317 IN 219, 260, 317, 463, 574, 765*, 812*, 930*
319 IA 319, 563
401 RI 401
402 NE 308, 402, 531
403 AB 403, 587, 780, 825; (Yukon/NWT/Nunavut areas added later: 867*)
404 GA 229, 404, 470, 478, 678, 706, 762, 770, 912, 943#
405 OK 405, 539, 572#, 580, 918
406 MT 406
412 PA 412, 724, 878
413 MA 413, 351*, 508*, 774*, 978*
414 WI 262, 414, 920, 608*
415 CA 209, 279, 341, 408, 415, 510, 559, 628, 650, 669, 831, 916, 925, 442*, 530*, 661*, 707*, 760*, 805*, 820*
416 ON 289, 365, 416, 437, 647, 742#, 905, 226*, 249*, 548*, 519*, 683#*, 705*
418 QC 367, 418, 581, 819*, 873*
419 OH 419, 567
501 AR 327#, 479, 501, 870
502 KY 270, 364, 502, 606, 859
503 OR 458, 503, 541, 971
504 LA 225, 318, 337, 504, 985
505 NM 505, 575
512 TX 210, 361, 512, 726, 737, 830, 956
513 OH 326, 513, 937
514 QC 354#, 438, 450, 468#, 514, 579, 819*, 873*; (Nunavut portion of 819: 867*)
515 IA 515, 641
517 MI 989, 517*
518 NY 518, 838, 845*
601 MS 228, 601, 662, 769
602 AZ 480, 520, 602, 623, 928
603 NH 603
604 BC 236, 250, 604, 672, 778
605 SD 605
612 MN 612, 651, 763, 952, 218*, 320*, 507*
613 ON 343, 613, 753#, 807, 226*, 249*, 519*, 548*, 683#*, 705*
614 OH 220, 380, 614, 740
616 MI 231, 269, 616, 906
617 MA 339, 617, 781, 857, 351*, 508*, 774*, 978*
618 IL 618*
701 ND 701
702 NV 702, 725, 775
703 VA 276, 434, 540, 571, 703, 757, 804 826#, 948#
704 NC 252, 336, 704, 743, 828, 910, 919, 980, 984
712 IA 712
713 TX 281, 346, 409, 713, 832, 936, 979
715 WI 534, 715, 608*
716 NY 585, 716
717 PA 223, 272, 570, 717
801 UT 385, 435, 801
802 VT 802
803 SC 803, 839, 843, 854, 864
812 IN 765*, 812*, 930*
814 PA 582#, 814
815 IL 779, 815
816 MO 816, 417*, 660*
901 TN 423, 615, 629, 731, 865, 901, 931
902 NB NL NS PE 506, 709, 782, 879#, 902
913 KS 785, 913
914 NY 516, 631, 914, 934, 845*
915 TX 325, 432, 806, 915, 254*, 940*
916 CA 530*, 707* (Not the current 916!)
Alaska AK 907, 250* [¶ note]
Hawaii HI 808
Puerto Rico PR 787, 939; (was part of 809)
Nfld. NL 709, 879# (part of original area code 902; split to 506 in 1955; split to 709 in 1962)
Yukon YT 867* (used 403* until 1997)
NWT NT 867* (used 403* until 1997)
Nunavut NU 867* (used 403* and 819* until 1997)
Guam GU 671 (was country code +671 until 1997)
CNMI MP 670 (Commonwealth of the Northern Mariana Islands; was +670 until 1997; +670 is now East Timor)
Caribbean   (see separate page)
Mexico   (former use of 706, 903, 905 discontinued; use country code ‎+52)

¶ The tiny town of Hyder, Alaska, receives telephone service from neighboring Stewart, B.C., Canada, and therefore uses area code 250. Calls to Hyder — whether originating in the US, Canada, or elsewhere — will be billed as calls to British Columbia, Canada. The other 99.99% of Alaska is in area code 907.

§ Area code 321 in Florida is both an overlay on area code 407 (Orlando) and a separate standalone area code for the “Space Coast” area. Area code 689 overlays only the Orlando area, but 689 or a future area code may overlay the coastal area at some point.

Atlanta, Dallas, Houston, Los Angeles, and San Diego all had area code splits that were later converted to overlays. The original split codes (770, 972, and 281, 323, and 858 respectively) are indicated as overlays in the chart above.

Some sources suggest that a small part of what is now the 518 & 838 area code in far upstate New York, started out in area code 315.

Return to LincMad’s Telephone Area Code page
Go to cumulative listing of all area code splits from 1995 to 2007, numerically by original area code.
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