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