LincMad Telephone Area Codes & Splits


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Overlay Area Codes by State/Province
State Old Overlay code(s) Usage notes
CA 310 310 & 424 Malibu to San Pedro
CO 303 303 & 720 Denver
FL 305 305 & 786 concentrated overlay on Miami, Fla. Keys
407 407 & 321 Orlando area; coast is 321 only
954 954 & 754 Fort Lauderdale
GA 404 404 & 678 Atlanta; 678 overlays 404 and 770
770 770 & 678
706 706 & 762 northern GA
IL 217 217 & 447 Champaign, Springfield; in 2007 or 2008
618 618 & 730 East St. Louis; in 2007 or 2008
630 630 & 331 Aurora, some Chicago suburbs; in 2007
815 815 & 779 Rockford, Joliet; eff. 2007-03-17
847 847 & 224 north suburbs of Chicago
MA 508 508 & 774 SE Mass., Cape Cod
617 617 & 857 Boston
781 781 & 339 Boston suburbs
978 978 & 351 NE Mass.
MD 301 301 & 240 Washington suburbs, southern Md.
410 410 & 443 Baltimore, northern Md.
MI 248 248 & 947 Oakland County (Detroit suburbs)
NC 704 704 & 980 Charlotte
NJ 201 201 & 551 Jersey City, northeast
732 732 & 848 New Brunswick, Jersey shore
973 973 & 862 Newark, northwest
NY 212 212 & 646 & 917 NYC: 917 overlays 212 and 718
718 718 & 347 & 917
OH 330 330 & 234 Akron, Canton, Youngstown
419 419 & 567 Toledo
OR 503 503 & 971 Portland/Salem, concentrated overlay
PA 215 215 & 267 Philadelphia
610 610 & 464 Philadelphia suburbs
412 412 & 878 Pittsburgh area; 878 overlays 412 and 724
724 724 & 878
PR 787 787 & 939 Puerto Rico
TX 214 214 & 972 & 469 Dallas
713 713 & 281 & 832 Houston
817 817 & 682 Fort Worth
903 903 & 430 Tyler, Texarkana, northeast
VA 703 703 & 571 Washington suburbs
BC 604 604 & 778 Vancouver, concentrated overlay
ON 416 416 & 647 Toronto
905 905 & 289 Toronto suburbs
519 519 & 226 London, Windsor, southern Ontario
QC 514 514 & 438 Montré
Dom. Rep. 809 809 & 829 Dominican Republic

Notation Key

Green text indicates an overlay that has not yet taken effect. If the old area code and the old & new are all green, the region has not yet implemented an overlay. If the old code is black and the overlay codes are shown as, for example, OLD & NEW (& NEWER), the region has an overlay and is planning to add an additional overlay code as shown.

Go to listing of splits and overlays since 2003-01-01
Go to "old news" page (older splits)

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