Area codes are three-digit numerical prefixes assigned to specific geographic regions in a country’s telephone numbering system. Initially introduced in the mid-20th century in the United States and Canada under the North American Numbering Plan (NANP), area codes were designed to organize and streamline telephone communication. They allow phone networks to route calls efficiently and are integral to identifying where a phone call originates or is directed.
In the United States, the first area codes were introduced in 1947. Initially, there were only 86 area codes, and the system was designed for rotary dial telephones. At the time, codes with “0” in the middle indicated large cities (e.g., 212 for New York City), while those with “1” in the middle represented less populated regions. Today, over 320 active area codes exist in the U.S., with more being added to accommodate the growing demand for phone numbers due to population growth and technological advancements like mobile phones and virtual communication services.
Area codes are assigned geographically, with larger cities often having multiple codes due to higher demand. For example, Los Angeles has several area codes, including 213, 310, and 323, while rural regions may share one code over a wide area. Overlay area codes are also common, meaning a new code is added to the same region as an existing one, requiring 10-digit dialing.
Understanding area codes is essential for both individuals and businesses. They help identify where calls originate, avoid phone scams, and enable businesses to maintain a local presence through virtual numbers. As technology evolves, the demand for new area codes continues, ensuring their relevance in modern communication systems. Whether you’re making a local or international call, area codes are foundational to how our phone systems operate.
List of Area Codes by State
The following is a list of the area codes within each state in the United States, listed alphabetically by state.
Here’s a comprehensive list of U.S. area codes organized alphabetically by state:
Alabama
205, 251, 256, 334, 938
Alaska
907
Arizona
480, 520, 602, 623, 928
Arkansas
479, 501, 870
California
209, 213, 279, 310, 323, 341, 408, 415, 424, 442, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 747, 760, 805, 818, 820, 831, 858, 909, 916, 925, 949, 951
Colorado
303, 719, 720, 970
Connecticut
203, 475, 860, 959
Delaware
302
Florida
239, 305, 321, 352, 386, 407, 448, 561, 689, 727, 754, 772, 786, 813, 850, 863, 904, 941, 954
Georgia
229, 404, 470, 478, 678, 706, 762, 770, 912
Hawaii
808
Idaho
208, 986
Illinois
217, 224, 309, 312, 331, 464, 618, 630, 708, 773, 779, 815, 847, 872
Indiana
219, 260, 317, 463, 574, 765, 812, 930
Iowa
319, 515, 563, 641, 712
Kansas
316, 620, 785, 913
Kentucky
270, 364, 502, 606, 859
Louisiana
225, 318, 337, 504, 985
Maine
207
Maryland
240, 301, 410, 443, 667
Massachusetts
339, 351, 413, 508, 617, 774, 781, 857, 978
Michigan
231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 947, 989
Minnesota
218, 320, 507, 612, 651, 763, 952
Mississippi
228, 601, 662, 769
Missouri
314, 417, 573, 636, 660, 816, 975
Montana
406
Nebraska
308, 402, 531
Nevada
702, 725, 775
New Hampshire
603
New Jersey
201, 551, 609, 732, 848, 856, 862, 908, 973
New Mexico
505, 575
New York
212, 315, 332, 347, 516, 518, 585, 607, 631, 646, 680, 716, 718, 838, 845, 914, 917, 929, 934
North Carolina
252, 336, 704, 743, 828, 910, 980, 984
North Dakota
701
Ohio
216, 220, 234, 283, 326, 330, 380, 419, 440, 513, 567, 614, 740, 937
Oklahoma
405, 539, 572, 580, 918
Oregon
458, 503, 541, 971
Pennsylvania
215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 878
Rhode Island
401
South Carolina
803, 839, 843, 854, 864
South Dakota
605
Tennessee
423, 615, 629, 731, 865, 901, 931
Texas
210, 214, 254, 281, 325, 346, 361, 409, 430, 432, 469, 512, 682, 713, 726, 737, 806, 817, 830, 832, 903, 915, 936, 940, 956, 972, 979
Utah
385, 435, 801
Vermont
802
Virginia
276, 434, 540, 571, 703, 757, 804
Washington
206, 253, 360, 425, 564, 509
West Virginia
304, 681
Wisconsin
262, 274, 414, 534, 608, 715, 920
Wyoming
307
Let me know if you need this data in a specific format (e.g., spreadsheet)!
This may not be an exhaustive list, as new codes are added periodically to accommodate population growth.
List of Area Codes by Number
The following is a list of area codes by number.
Below is a list of U.S. area codes arranged in numerical order:
201 – New Jersey
202 – District of Columbia
203 – Connecticut
205 – Alabama
206 – Washington
207 – Maine
208 – Idaho
209 – California
210 – Texas
212 – New York
213 – California
214 – Texas
215 – Pennsylvania
216 – Ohio
217 – Illinois
218 – Minnesota
219 – Indiana
220 – Ohio
223 – Pennsylvania
224 – Illinois
225 – Louisiana
228 – Mississippi
229 – Georgia
231 – Michigan
234 – Ohio
239 – Florida
240 – Maryland
248 – Michigan
251 – Alabama
252 – North Carolina
254 – Texas
256 – Alabama
260 – Indiana
262 – Wisconsin
267 – Pennsylvania
269 – Michigan
270 – Kentucky
272 – Pennsylvania
274 – Wisconsin
276 – Virginia
279 – California
281 – Texas
283 – Ohio
301 – Maryland
302 – Delaware
303 – Colorado
304 – West Virginia
305 – Florida
307 – Wyoming
308 – Nebraska
309 – Illinois
310 – California
312 – Illinois
313 – Michigan
314 – Missouri
315 – New York
316 – Kansas
317 – Indiana
318 – Louisiana
319 – Iowa
320 – Minnesota
321 – Florida
323 – California
325 – Texas
326 – Ohio
330 – Ohio
331 – Illinois
332 – New York
334 – Alabama
336 – North Carolina
337 – Louisiana
339 – Massachusetts
341 – California
346 – Texas
347 – New York
351 – Massachusetts
352 – Florida
360 – Washington
361 – Texas
364 – Kentucky
385 – Utah
386 – Florida
401 – Rhode Island
402 – Nebraska
404 – Georgia
405 – Oklahoma
406 – Montana
407 – Florida
408 – California
409 – Texas
410 – Maryland
412 – Pennsylvania
413 – Massachusetts
414 – Wisconsin
415 – California
417 – Missouri
419 – Ohio
424 – California
425 – Washington
430 – Texas
432 – Texas
434 – Virginia
435 – Utah
440 – Ohio
442 – California
443 – Maryland
445 – Pennsylvania
458 – Oregon
463 – Indiana
464 – Illinois
469 – Texas
470 – Georgia
475 – Connecticut
478 – Georgia
479 – Arkansas
480 – Arizona
484 – Pennsylvania
501 – Arkansas
502 – Kentucky
503 – Oregon
504 – Louisiana
505 – New Mexico
507 – Minnesota
508 – Massachusetts
509 – Washington
510 – California
512 – Texas
515 – Iowa
516 – New York
517 – Michigan
518 – New York
520 – Arizona
530 – California
531 – Nebraska
534 – Wisconsin
539 – Oklahoma
540 – Virginia
541 – Oregon
551 – New Jersey
559 – California
561 – Florida
562 – California
563 – Iowa
567 – Ohio
571 – Virginia
573 – Missouri
574 – Indiana
575 – New Mexico
580 – Oklahoma
582 – Pennsylvania
585 – New York
586 – Michigan
601 – Mississippi
602 – Arizona
603 – New Hampshire
605 – South Dakota
606 – Kentucky
607 – New York
608 – Wisconsin
609 – New Jersey
610 – Pennsylvania
612 – Minnesota
614 – Ohio
615 – Tennessee
616 – Michigan
617 – Massachusetts
618 – Illinois
619 – California
620 – Kansas
623 – Arizona
626 – California
628 – California
629 – Tennessee
630 – Illinois
631 – New York
636 – Missouri
641 – Iowa
646 – New York
650 – California
651 – Minnesota
657 – California
659 – Alabama
660 – Missouri
661 – California
662 – Mississippi
667 – Maryland
669 – California
678 – Georgia
680 – New York
681 – West Virginia
682 – Texas
701 – North Dakota
702 – Nevada
703 – Virginia
704 – North Carolina
706 – Georgia
707 – California
708 – Illinois
712 – Iowa
713 – Texas
714 – California
715 – Wisconsin
716 – New York
717 – Pennsylvania
718 – New York
719 – Colorado
720 – Colorado
724 – Pennsylvania
725 – Nevada
726 – Texas
727 – Florida
731 – Tennessee
732 – New Jersey
734 – Michigan
737 – Texas
740 – Ohio
743 – North Carolina
747 – California
754 – Florida
757 – Virginia
760 – California
762 – Georgia
763 – Minnesota
765 – Indiana
769 – Mississippi
770 – Georgia
772 – Florida
773 – Illinois
774 – Massachusetts
775 – Nevada
779 – Illinois
781 – Massachusetts
785 – Kansas
786 – Florida
801 – Utah
802 – Vermont
803 – South Carolina
804 – Virginia
805 – California
806 – Texas
808 – Hawaii
810 – Michigan
812 – Indiana
813 – Florida
814 – Pennsylvania
815 – Illinois
816 – Missouri
817 – Texas
818 – California
820 – California
828 – North Carolina
830 – Texas
831 – California
832 – Texas
835 – Pennsylvania
843 – South Carolina
845 – New York
847 – Illinois
848 – New Jersey
850 – Florida
854 – South Carolina
856 – New Jersey
857 – Massachusetts
858 – California
859 – Kentucky
860 – Connecticut
862 – New Jersey
863 – Florida
864 – South Carolina
865 – Tennessee
870 – Arkansas
872 – Illinois
878 – Pennsylvania
901 – Tennessee
903 – Texas
904 – Florida
906 – Michigan
907 – Alaska
908 – New Jersey
909 – California
910 – North Carolina
912 – Georgia
913 – Kansas
914 – New York
915 – Texas
916 – California
917 – New York
918 – Oklahoma
919 – North Carolina
920 – Wisconsin
925 – California
928 – Arizona
929 – New York
931 – Tennessee
934 – New York
936 – Texas
937 – Ohio
938 – Alabama
940 – Texas
941 – Florida
947 – Michigan
949 – California
951 – California
952 – Minnesota
954 – Florida
956 – Texas
959 – Connecticut
970 – Colorado
971 – Oregon
972 – Texas
973 – New Jersey
975 – Missouri
978 – Massachusetts
979 – Texas
980 – North Carolina
984 – North Carolina
985 – Louisiana
986 – Idaho
989 – Michigan
Area Code Search Websites
Many websites provide the ability to search for area codes and information about a particular city. Many websites also offer reverse area code search capabilities, which allow you to enter a city and state to find the corresponding number. These tools are helpful for investigators who are conducting missing person searches, skip tracing, and attempting to track down debtors.
Following are some recommended resources for looking up area codes and conducting reverse searches:
- Addresses.com – This website includes various search tools that allow you to look up addresses and phone numbers.
- Verizon Area Code Lookup—The Verizon Area Code Lookup tool allows you to search for the central locations in a particular area. You can find the codes used in that state by entering the name. The site also provides a historical view, which helps you determine what has changed or when you need to locate individuals in an area where the code has changed.
What Do Private Investigators Need to Know
Private investigators may need to conduct such searches during an investigation. They may be part of the information-gathering process, such as determining the location of a crime or a particular subject, or they may be part of the planning process related to plotting a surveillance mission across a specific geographic region.
Deciphering area codes may be necessary for investigating missing persons or doing background checks. Knowing the area in which a phone number originates may help identify where an individual resides or at least where the phone number was issued.
For more information, please read our article on how to search public records online.