Area Code Change Details

North America has seen an explosion of new area codes over the last decade, fueled by increased demand for numbers (modems, fax, wireless) and competition in local telephone service. To meet this growing demand for numbers, the North American Numbering Plan was amended in 1995 to permit area codes with middle digits other than 0 or 1. As a result, millions of phone numbers have moved to new area codes in recent years. This site contains a collection of lists of telephone exchanges involved in area code splits. Each entry below links you to a detailed list of telephone exchange codes (NXX) which will be, or have already been, moved to a new area code (NPA).

This is not intended to be a master list of all area codes, or even of all new area codes. I generally do not include overlays, where a new area code is introduced which covers the same area as an existing area code. In such cases, no telephone numbers change. I have listed a few of the more confusing multiple overlays and combination split/overlays, though they may not exactly fit the criteria of number changes.

Some of the information presented here is based on Planning Letters of the North American Numbering Plan Administration (NANPA). However, a lot of our data also comes from local telephone companies and state regulatory bodies.

While every effort has been made to ensure the accuracy of these lists, we cannot guarantee 100% accuracy. Often the lists change between the date of the original announcement and the actual split date. Whenever possible, we cross-check the data from the local telephone company (LEC) responsible for executing the split with all other available sources, and update the files as neccessary.

For more general information about new area codes, please click here.

01/15/1995 - 05/13/1995 Area Code 334 : splits off area code 205 in Alabama
01/15/1995 - 08/20/1995 Area Code 360 : splits off area code 206 in Washington
03/19/1995 - 12/31/1995 Area Code 520 : splits off area code 602 in Arizona
04/02/1995 - 01/14/1996 Area Code 970 : splits off area code 303 in Colorado
05/28/1995 - 03/03/1996 Area Code 941 : splits off area code 813 in Florida
07/15/1995 - 01/27/1996 Area Code 540 : splits off area code 703 in Virginia
08/01/1995 - 12/01/1995 Area Code 770 : splits off area code 404 in Georgia
08/28/1995 - 10/04/1996 Area Code 860 : splits off area code 203 in Connecticut
09/11/1995 - 01/01/1997 Area Code 954 : splits off area code 305 in Florida
09/11/1995 - 02/26/1996 Area Code 423 : splits off area code 615 in Tennessee
10/01/1995 - 09/30/1996 Area Code 441 : splits off area code 809 in Bermuda
11/05/1995 - 06/30/1996 Area Code 541 : splits off area code 503 in Oregon
12/03/1995 - 05/01/1996 Area Code 864 : splits off area code 803 in South Carolina
12/03/1995 - 05/20/1996 Area Code 352 : splits off area code 904 in Florida
01/07/1996 - 07/07/1996 Area Code 573 : splits off area code 314 in Missouri
01/20/1996 - 04/20/1996 Area Code 847 : splits off area code 708 in Illinois
03/01/1996 - 01/31/1997 Area Code 787 : splits off area code 809 in Puerto Rico
03/16/1996 - 09/15/1996 Area Code 320 : splits off area code 612 in Minnesota
03/20/1996 - 06/29/1996 Area Code 330 : splits off area code 216 in Ohio
04/01/1996 - 03/31/1997 Area Code 268 : splits off area code 809 in Antigua / Barbuda
05/13/1996 - 04/13/1997 Area Code 561 : splits off area code 407 in Florida
07/01/1996 - 02/01/1997 Area Code 757 : splits off area code 804 in Virginia
07/01/1996 - 01/15/1997 Area Code 246 : splits off area code 809 in Barbados
07/01/1996 - 06/01/1997 Area Code 664 : splits off area code 809 in Montserrat
07/01/1996 - 01/01/1997 Area Code 758 : splits off area code 809 in St. Lucia
08/03/1996 - 11/30/1996 Area Code 630 : splits off area code 708 in Illinois
08/01/1996 - 08/01/1996 Area Code 910 : realignment from NPA 704 in North Carolina
09/01/1996 - 08/31/1997 Area Code 345 : splits off area code 809 in Cayman Islands
09/14/1996 - 03/14/1997 Area Code 972 : splits off area code 214 in Texas
09/28/1996 - 06/14/1997 Area Code 937 : splits off area code 513 in Ohio
10/01/1996 - 03/31/1997 Area Code 242 : splits off area code 809 in Bahamas
10/01/1996 - 03/31/1997 Area Code 869 : splits off area code 809 in St. Kitts & Nevis
10/12/1996 - 01/11/1997 Area Code 773 : splits off area code 312 in Illinois
10/19/1996 - 04/06/1997 Area Code 250 : splits off area code 604 in British Columbia
11/02/1996 - 06/07/1997 Area Code 281 : splits off area code 713 in Texas
01/25/1997 - 07/25/1997 Area Code 562 : splits off area code 310 in California
02/01/1997 - 06/28/1997 Area Code 765 : splits off area code 317 in Indiana
03/22/1997 - 09/27/1997 Area Code 760 : splits off area code 619 in California
03/31/1997 - 09/30/1997 Area Code 264 : splits off area code 809 in Anguilla
04/27/1997 - 11/16/1997 Area Codes 253 and 425 : split off area code 206 in Washington
04/14/1997 - 10/06/1997 Area Code 870 : splits off area code 501 in Arkansas
05/01/1997 - 07/31/1998 Area Code 876 : splits off area code 809 in Jamaica
05/10/1997 - 09/13/1997 Area Code 248 : splits off area code 810 in Michigan
05/31/1997 - 06/30/1998 Area Code 649 : splits off area code 809 in Turks and Caicos Is.
05/25/1997 - 08/24/1997 Area Codes 254 and 940 : split off area code 817 in Texas
06/01/1997 - 12/06/1997 Area Code 973 : splits off area code 201 in New Jersey
06/01/1997 - 12/06/1997 Area Code 732 : splits off area code 908 in New Jersey
06/01/1997 - 05/31/1998 Area Code 868 : splits off area code 809 in Trinidad & Tobago
06/01/1997 - 06/30/1998 Area Code 340 : splits off area code 809 in U.S.V.I.
06/14/1997 - 02/21/1998 Area Code 626 : splits off area code 818 in California
06/23/1997 - 03/23/1998 Area Code 850 : splits off area code 904 in Florida
07/07/1997 - 10/06/1997 Area Code 830 : splits off area code 210 in Texas
07/07/1997 - 10/06/1997 Area Code 956 : splits off area code 210 in Texas
07/20/1997 - 10/03/1998 Area Code 785 : splits off area code 913 in Kansas
07/26/1997 - 10/25/1997 Area Code 920 : splits off area code 414 in Wisconsin
08/02/1997 - 02/01/1998 Area Code 650 : splits off area code 415 in California
08/16/1997 - 04/04/1998 Area Code 440 : splits off area code 216 in Ohio
08/16/1997 - 04/04/1998 Area Code 330 : realignment from 216 in Ohio
09/01/1997 - 01/31/1998 Area Code 781 : splits off area code 617 in Massachussetts
09/01/1997 - 01/31/1998 Area Code 978 : splits off area code 508 in Massachussetts
09/15/1997 - 09/14/1998 Area Code 228 : splits off area code 601 in Mississippi
09/15/1997 - 01/19/1998 Area Code 931 : splits off area code 615 in Tennessee
09/21/1997 - 09/19/1998 Area Code 435 : splits off area code 801 in Utah
10/01/1997 - 09/30/1998 Area Code 284 : splits off area code 809 in British V.I.
10/01/1997 - 09/30/1998 Area Code 767 : splits off area code 809 in Dominica
10/12/1997 - 04/19/1998 Area Code 660 : splits off area code 816 in Missouri
10/21/1997 - 04/26/1998 Area Code 867 : splits off 403 and 819 in Yukon / NWT, Canada
10/31/1997 - 10/31/1998 Area Code 473 : splits off 809 in Grenada / Carriacou
11/01/1997 - 05/16/1998 Area Code 530 : splits off area code 916 in California
11/01/1997 - 04/01/1998 Area Code 580 : splits off area code 405 in Oklahoma
11/08/1997 - 06/06/1998 Area Code 740 : splits off area code 614 in Ohio
12/13/1997 - 07/25/1998 Area Code 734 : splits off area code 313 in Michigan
12/15/1997 - 06/15/1998 Area Code 336 : splits off area code 910 in North Carolina
01/06/1998 - 01/06/1998 Area Code 678 : overlaid on 404 and 770 in Georgia
02/01/1998 - 04/29/1998 Area Code 724 : splits off area code 412 in Pennsylvania
03/14/1998 - 09/12/1998 Area Code 925 : splits off area code 510 in California
03/22/1998 - 09/27/1998 Area Code 843 : splits off area code 803 in South Carolina
03/22/1998 - 09/21/1998 Area Code 252 : splits off area code 919 in North Carolina
03/22/1998 - 10/05/1998 Area Code 828 : splits off area code 704 in North Carolina
03/23/1998 - 09/27/1998 Area Code 256 : splits off area code 205 in Alabama
04/18/1998 - 10/17/1998 Area Code 949 : splits off area code 714 in California
06/01/1998 - 05/31/1999 Area Code 784 : splits off 809 in St. Vincent / Grenadines
06/13/1998 - 12/13/1998 Area Code 450 : splits off area code 514 in Quebec
06/13/1998 - 01/16/1999 Area Code 323 : splits off area code 213 in California
07/01/1998 - 02/01/1999 Area Code 727 : splits off area code 813 in Florida
07/11/1998 - 02/20/1999 Area Code 831 : splits off area code 408 in California
07/12/1998 - 01/10/1999 Area Code 651 : splits off area code 612 in Minnesota
08/17/1998 - 04/05/1999 Area Code 225 : splits off area code 504 in Louisiana
11/14/1998 - 05/15/1999 Area Code 559 : splits off area code 209 in California
12/05/1998 - 04/04/1999 Area Code 570 : splits off area code 717 in Pennsylvania
12/12/1998 - 05/15/1999 Area Code 775 : splits off area code 702 in Nevada
01/01/1999 - 01/01/1999 Area Code 832 : overlaid on 713 and 281 in Texas
01/25/1999 - 05/18/1999 Area Code 780 : splits off area code 403 in Alberta
02/13/1999 - 08/14/1999 Area Code 661 : splits off area code 805 in California
02/13/1999 - 09/18/1999 Area Code 361 : splits off area code 512 in Texas
04/01/1999 - 10/24/1999 Area Codes 480 and 623 : split off area code 602 in Arizona
04/19/1999 - 05/01/2000 Area Code 662 : splits off area code 601 in Mississippi
04/19/1999 - 11/01/1999 Area Code 270 : splits off area code 502 in Kentucky
05/22/1999 - 02/26/2000 Area Code 636 : splits off area code 314 in Missouri
06/05/1999 - 10/02/1999 Area Code 231 : splits off area code 616 in Michigan
06/12/1999 - 11/13/1999 Area Code 856 : splits off area code 609 in New Jersey
06/12/1999 - 12/11/1999 Area Code 858 : splits off area code 619 in California
07/01/1999 - 07/01/1999 Area Code 469 : overlaid on 214 and 972 in Texas
09/20/1999 - 05/22/2000 Area Code 863 : splits off area code 941 in Florida
09/25/1999 - 03/04/2000 Area Code 262 : splits off area code 414 in Wisconsin
10/11/1999 - 07/10/2000 Area Code 337 : splits off area code 318 in Louisiana
11/01/1999 - 10/01/2000 Area Code 321 : splits AND overlays 407 in Florida
11/01/1999 - 04/01/2000 Area Code 631 : splits off area code 516 in New York
11/01/1999 - 04/24/2000 Area Code 865 : splits off area code 423 in Tennessee
02/19/2000 - 08/06/2000 Area Codes 936 and 979 : split off area code 409 in Texas
02/27/2000 - 01/14/2001 Area Codes 763 and 952 : split off area code 612 in Minnesota
04/01/2000 - 10/01/2000 Area Code 859 : splits off area code 606 in Kentucky
06/05/2000 - 12/03/2000 Area Code 845 : splits off area code 914 in New York
07/09/2000 - 12/02/2000 Area Code 641 : splits off area code 515 in Iowa
08/01/2000 - 08/01/2001 Area Codes 229 and 478 : split off area code 912 in Georgia
02/03/2001 - 11/03/2001 Area Code 620 : splits off area code 316 in Kansas
02/12/2001 - 09/17/2001 Area Code 731 : splits off area code 901 in Tennessee
02/12/2001 - 10/22/2001 Area Code 985 : splits off area code 504 in Louisiana
02/15/2001 - 11/05/2001 Area Code 386 : splits off area code 904 in Florida
03/25/2001 - 12/02/2001 Area Code 563 : splits off area code 319 in Iowa
04/07/2001 - 10/06/2001 Area Code 989 : splits off area code 517 in Michigan
05/19/2001 - 11/17/2001 Area Code 937 : realignment from area code 513 in Ohio
06/01/2001 - 01/15/2002 Area Code 434 : splits off area code 804 in Virginia
06/18/2001 - 01/07/2002 Area Code 251 : splits off area code 334 in Alabama
06/23/2001 - 01/05/2002 Area Code 928 : splits off area code 520 in Arizona
09/01/2001 - 03/16/2002 Area Code 276 : splits off area code 540 in Virginia
09/22/2001 - 03/22/2002 Area Code 586 : splits off area code 810 in Michigan
11/15/2001 - 08/17/2002 Area Code 585 : splits off area code 716 in New York
01/15/2002 - 06/14/2002 Area Codes 260 and 574 : split off area code 219 in Indiana
01/19/2002 - 07/20/2002 Area Code 479 : splits off area code 501 in Arkansas
02/11/2002 - 11/11/2002 Area Code 772 : splits off area code 561 in Florida
03/11/2002 - 03/10/2003 Area Code 239 : splits off area code 941 in Florida
07/13/2002 - 02/15/2003 Area Code 269 : splits off area code 616 in Michigan
04/05/2003 - 10/04/2003 Area Codes 325 and 432 : split off area code 915 in Texas
07/17/2004 - 10/30/2004 Area Code 951 : splits off area code 909 in southern California
07/29/2007 - 05/01/2008 Area Code 504 : reverse-splits off area code 985 in southeastern Louisiana
10/07/2007 - 10/05/2008 Area Code 575 : splits off area code 505 in New Mexico