Ten Digit Dialing


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Ten digit dialing (area code + seven digit number) is necessary when two area codes cover the same geographic area. In this situation two different homes in the same geographic area can have the same seven digit phone number but each would have a different area code. This is called an area code overlay. Seven digit dialing is permitted to dial only the local seven digit number, without the area code, if the call is to another subscriber within the same area code and no overlays exist.

Area codes may be searched using VerifyPhone.com's area code locator service on the homepage. Ten digit dialing within area code overlays permits the phone companies to route your call to the correct subscriber.

Ten Digit Dialing
Area Code Location Local Dialing Plan Comments
201 New Jersey 10 Digits  
203 Connecticut 10 Digits 10 Digits is required in all Conneticut area codes.
212 New York 1+10 Digits  
214 Texas 10 Digits  
215 Pennsylvania 10 Digits (see note) othewise
1+10 Digits 		10 Digits is permitted between area codes 215, 267, 484 and 610. All other calls are 1+10 digits.
224 Illinois 1+10 Digits  
226 Ontario 10 Digits  
234 Ohio 10 Digits  
240 Maryland 10 Digits  
248 Michigan 10 Digits  
250 British Columbia 10 Digits  
256 Alabama 10 Digits  
267 Pennsylvania 10 Digits (see note) othewise
1+10 Digits 		10 Digits is permitted between area codes 215, 267, 484 and 610. All other calls are 1+10 digits.
281 Texas 10 Digits  
289 Ontario 10 Digits  
301 Maryland 10 Digits  
303 Colorado 10 Digits  
304 West Virginia 10 Digits  
305 Florida 10 Digits except in Florida Keys. See note. Florida Keys - 7 Digit Dialing Permitted
310 California 1+10 Digits  
312 Illinois 1+10 Digits  
321 Florida 10 Digits except in Brevard County. See Note Brevard County - 7 Digit Dialing Permitted
330 Ohio 10 Digits  
331 Illinois 1+10 Digits  
339 Massachusetts 10 Digits  
347 New York 1+10 Digits  
351 Massachusetts 10 Digits  
385 Utah 10 Digits  
403 Alberta 10 Digits  
404 Georgia 10 Digits  
407 Florida 10 Digits  
410 Maryland 10 Digits  
412 Pennsylvania 10 Digits (see note) othewise
1+10 Digits 		10 Digits is permitted between area codes 412, 724, 878. All other calls are 1+10 digits.
416 Ontario 10 Digits  
418 Quebec 10 Digits  
419 Ohio 10 Digits  
424 California 1+10 Digits  
430 Texas 10 Digits  
438 Quebec 10 Digits  
442 California 1+10 Digits  
443 Maryland 10 Digits  
450 Quebec 10 Digits  
458 Oregon 10 Digits  
469 Texas 10 Digits  
470 Georgia 10 Digits  
475 Connecticut 10 Digits 10 Digits is required in all Conneticut area codes.
484 Pennsylvania 10 Digits (see note) othewise
1+10 Digits 		10 Digits is permitted between area codes 215, 267, 484 and 610. All other calls are 1+10 digits.
503 Oregon 10 Digits  
508 Massachusetts 10 Digits  
514 Quebec 10 Digits  
519 Ontario 10 Digits  
541 Oregon 10 Digits  
551 New Jersey 10 Digits  
567 Ohio 10 Digits  
571 Virginia 10 Digits  
581 Quebec 10 Digits  
587 Alberta 10 Digits  
601 Mississippi 10 Digits  
604 British Columbia 10 Digits  
610 Pennsylvania 10 Digits (see note) othewise
1+10 Digits 		10 Digits is permitted between area codes 215, 267, 484 and 610. All other calls are 1+10 digits.
613 Ontario 10 Digits  
617 Massachusetts 10 Digits  
630 Illinois 1+10 Digits  
646 New York 1+10 Digits  
647 Ontario 10 Digits  
657 California 1+10 Digits  
678 Georgia 10 Digits  
681 West Virginia 10 Digits  
682 Texas 10 Digits  
703 Virginia 10 Digits  
704 North Carolina 10 Digits  
706 Georgia 10 Digits  
713 Texas 10 Digits  
714 California 1+10 Digits  
715 Wisconsin 10 Digits  
718 New York 1+10 Digits  
720 Colorado 10 Digits  
724 Pennsylvania 10 Digits 10 Digits is permitted between area codes 412, 724, 878. All other calls are 1+10 digits.
732 New Jersey 10 Digits 10 Digits is permitted between area codes 732 and 848. All other calls are 1+10 digits.
747 California 1+10 Digits  
754 Florida 10 Digits  
760 California 1+10 Digits  
762 Georgia 10 Digits  
769 Mississippi 10 Digits  
770 Georgia 10 Digits  
773 Illinois 1+10 Digits  
774 Massachusetts 10 Digits  
778 British Columbia 10 Digits  
779 Illinois 1+10 Digits  
780 Alberta 10 Digits  
781 Massachusetts 10 Digits  
786 Florida 10 Digits  
787 Puerto Rico 10 Digits  
801 Utah 10 Digits  
809 Dominican Republic 10 Digits  
815 Illinois 1+10 Digits  
817 Texas 10 Digits  
818 California 1+10 Digits  
819 Quebec 10 Digits  
829 Dominican Republic 10 Digits  
832 Texas 10 Digits  
847 Illinois 1+10 Digits  
848 New Jersey 10 Digits 10 Digits is permitted between area codes 732 and 848. All other calls are 1+10 digits.
849 Dominican Republic 10 Digits  
857 Massachusetts 10 Digits  
860 Connecticut 10 Digits 10 Digits is required in all Conneticut area codes.
862 New Jersey 10 Digits 10 Digits is permitted between area codes 862 and 973. All other calls are 1+10 digits.
872 Illinois 1+10 Digits  
878 Pennsylvania 10 Digits 10 Digits is permitted between area codes 412, 724, 878. All other calls are 1+10 digits.
903 Texas 10 Digits  
905 Ontario 10 Digits  
917 New York 1+10 Digits  
938 Alabama 10 Digits  
939 Puerto Rico 10 Digits  
947 Michigan 10 Digits  
954 Florida 10 Digits  
971 Oregon 10 Digits  
972 Texas 10 Digits  
973 New Jersey 10 Digits 10 Digits is permitted between area codes 862 and 973. All other calls are 1+10 digits.
979 Massachusetts 10 Digits  
980 North Carolina 10 Digits  
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