Predictions for New Area Codes

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The information below relates to new area codes that are expected in the 2020s. Except where noted, the new area codes have not yet been announced officially, but the predictions are guesses based on other publicly available information. In the table below, “NPA” is the current area code, “Exhaust” is the date (calendar quarter) the current area code is projected to run out of number blocks, and “New” is my prediction for the new area code that will be assigned. The new area code typically takes effect six months to a year before the projected exhaust date. If a full date is given, that is the confirmed official effective date of the new area code.


NPA State Exhaust New notes
314 MO 557 ✔ now in effect; originally announced in 2001
910 NC 472 ✔ officially confirmed; date advanced nearly 5 months
209 CA 350 ✔ new area code finally officially announced, with less than 6 months to go
516 NY 363 ✔ now in use
707 CA 369 ✔ 707/369/627 split planned for 2000; 707 & 369 overlay took effect in 2023
309 IL 861 ✔ now in use
561 FL 728 ✔ now in use
845 NY 329 ✔ now in use
513 OH 789 🚫 513 & 283 overlay originally planned for 2002; it’s going to be 283 after all, despite having assigned 513-283-xxxx numbers
920 WI 274 announced in 2008 for 2012; ✔ finally scheduled, but then advanced by 9½ months
301 MD 227 ✔ 301 & 240 (& 227); date finally set
618 IL 730 ✔ announced in 2005
305 FL 645 ✔ officially confirmed; 305 & 786 (& 645)
716 NY 624 or 927? ✔︎ date confirmed
480 AZ 852 🚫 The 602/480/623 split will be converted to the 602 & 480 & 623 overlay; in practice, mostly new 623 numbers will be assigned in the 480 and 602 areas
608 WI 353 ✔︎ effective date officially announced
816 MO 975 ✔ officially confirmed; originally announced in 2001
804 VA 686 ✔ officially confirmed or 653 or 583
870 AR 327 originally planned for 2013; ✔ finally scheduled — but then advanced by 3½ months
904 FL 324 ✔ new code and date confirmed
440 OH 436 ✔ officially confirmed
573 MO 235 ✔ officially confirmed
864 SC 821 ✔ officially confirmed; South Carolina really likes 8s!
507 MN 924  
313 MI 679 (679 will also overlay 734 when it nears exhaust)
605 SD 476  
334 AL 483  
423 TN 729  
602 AZ 676 🚫 623 will overlay 602 and 480; 676 may be added later, or 676 may overlay 520 instead
806 TX 232  
559 CA 357 or 621 or 247
949 CA 663  
352 FL 576 or 852
765 IN 634  
970 CO 958? 853 or 654
989 MI 852  
509 WA ??? 451, 583, 729, or 958
530 CA 837  
318 LA 736 or 454 or 457
585 NY 459 or 221?
520 AZ 676  
785 KS 287  
207 ME 258 or 953 or 981
662 MS 221 or 958??
908 NJ 749  
580 OK 359  
914 NY 926 or 927 or 981? or 982?
956 TX 449  
626 CA 481  
254 TX 446  
502 KY 761  
620 KS 261 or 823
912 GA 746  
403
780		 AB 568 (officially announced, subject to change • officiellement annoncé, sous réserve)
218 MN 923  
603 NH 946  
701 ND 921 or 823?
928 AZ 827  
417 MO 982 or 643?
406 MT 536  
951 CA 752 original plan in 1999 was 909/951 split in 2000, followed by 909 & 752 overlay in 2001; 909/951 split happened in 2004, followed by 909 & 840 overlay in 2021
413 MA 421  
902 NS PEI 851 officially announced, subject to change • officiellement annoncé, sous réserve
905 ON 537 officially announced, subject to change • officiellement annoncé, sous réserve
501 AR 953  
505 NM 335 or 957
229 GA ??? anyone’s guess: no suitable candidates reserved
308 NE 471 or 621?
231 MI 987  
650 CA 764 originally announced in 1999 for
856 NJ 280  
828 NC 451  
705 ON 460 officially announced, subject to change • officiellement annoncé, sous réserve

It is certainly possible — indeed likely — that some of these predictions will be proven wrong, but I expect my accuracy to be 80+%. (Predictions that have been officially confirmed are listed in gray✔; predictions that have been proven wrong are listed in red🚫.) However, with limited exceptions, this information has not been corroborated with NANPA, with any state agency, or with any telephone company; it is therefore provided entirely without warranty of any kind.

It is much more difficult to predict the new area code to be added to an area that already has an overlay. However, Canadian authorities have revealed (subject to change) that 257 will be the next area code for British Columbia, and 942 will be the next area code for the city of Toronto (not including suburbs). Both are expected in . The CRTC also recently announced several additional codes for expected overlays in the next decade.

NANPA has also announced several codes that are reserved for future expansion of the 500 non-geographic services code: 532, 535, 538, 542, 543, 545, 546, 547, 549, 550, 552, 553, 554, 556, 558, 569, 578, and 589. Those area codes will not be assigned for any geographic area code relief.