Old | New | Area Affected | 10D/1+10D Dialing | Overlay | Test Number |
---|---|---|---|---|---|
214 etc. |
945 | TX: Dallas and suburbs; area code 945 will be added to 214 & 972 & 469 overlay | — | 945-945-1945 | |
500 etc. |
526 | non-geographic: more numbers for iPads, tablets, etc. — mostly non-dialable from ordinary phones | — | (none) | |
909 | 840 | CA: San Bernardino, Ontario | 840-840-1840 | ||
217 | 447 | IL: Champaign, Springfield | 447-447-1447 | ||
814 | 582 | PA: Altoona, Erie: originally scheduled as an overlay in 2002, then shelved, then scheduled as a split for , with Erie changing to 582 and Altoona keeping 814, then shelved again. However, the overlay finally happened on . | 582-990-TEST | ||
405 | 572 | OK: Oklahoma City | 572-572-1572 | ||
850 | 448 | FL: Tallahassee, Pensacola, panhandle | 448-448-1448 | ||
500 etc. |
527 | non-geographic: more numbers for iPads, tablets, etc. — mostly non-dialable from ordinary phones | — | (none) | |
306 639 |
474 | 🇨🇦 SK: entire province of Saskatchewan, Canada | — |
1–474 + (210, 410, 610, or 810) + (–TEST/–8378 or/ou –BILL$/–2455$) |
|
905 etc. |
742 | 🇨🇦 ON: Toronto suburbs (not including the city of Toronto); the 905 & 289 & 365 overlay added 742 on | — |
1–742 + (222, 610, or/ou 999) + –TEST/–8378 or/ou –BILL$/–2455$) |
|
202 | 771 | DC: the city of Washington, D.C. | 771-990-TEST | ||
(multi) | — | Major change throughout the United States: A total of 82 U.S. area codes in 35 states (plus Guam) changed to mandatory 10-digit or 1+10D dialing for local calls, phased in from through in preparation for the introduction of the national 988 suicide prevention lifeline. (More information on “The Big 10D”) | — | ||
708 | 464 | IL: La Grange, certain suburbs south or west of Chicago; (Originally approved in 1999, but not formally scheduled until July 2021, effective .) | 464-464-1464 | ||
813 | 656 | FL: Tampa; (postponed due to Covid-19) |
|
|
656-656-1656 |
500 etc. |
528 | non-geographic: more numbers for iPads, tablets, etc. — mostly non-dialable from ordinary phones | — | (none) | |
404 770 etc. |
943 | GA: Atlanta metro area; 404 & 770 & 678 & 470 & 943) | — | 943-943-1943 | |
613 343 |
753 | 🇨🇦 ON: Ottawa; (originally planned for , the date was advanced by more than a year, to ) (initialement prévu pour le , le recouvrement fut avancé de plus d’un an jusqu’au ) | — | 1-753-610 + (–TEST/–8378 or/ou –BILL$/–2455$) | |
403 780 etc. |
368 | 🇨🇦 AB: entire province of Alberta, Canada, area codes 403, 780, 587, and 825 | — | 1–368 + (410, 610, 645, 710, 810, 888, or 999) + (–TEST/–8378 or/ou –BILL$/–2455$) | |
757 | 948 | VA: Norfolk, Virginia Beach (revised official dates) | 948-990-TEST | ||
540 | 826 | VA: Roanoke, Harrisonburg, outer suburbs of Washington, D.C. | 826-990-TEST | ||
303 720 |
983 | CO: Denver metro area | — | 983-983-1983 | |
705 249 |
683 | 🇨🇦 ON: Sudbury, Peterborough | — | 1–683–610 + –TEST/–8378) or/ou –BILL$/–2455$) | |
314 | 557 | MO: St. Louis; (planned for 2001, suspended in 2002, finally happened in 2022) | 557-557-1557 | ||
610 484 |
835 | PA: Philadelphia suburbs | — | 835-990-TEST | |
500 etc. |
529 | non-geographic: more numbers for iPads, tablets, etc. — mostly non-dialable from ordinary phones | — | (none) | |
910 | 472 | NC: Fayetteville, Wilmington; (Area code 472 overlays 910; date advanced by nearly 5 months) | 472-472-1472 | ||
514 438 |
263 | 🇨🇦 QC: Montréal (city only, not including suburbs) • (la ville seulement, banlieue non incluse) | — | 1-263 + (210 ou/or 610) + (–TEST/–8378 ou/or –BILL$/–2455$) | |
450 579 |
354 | 🇨🇦 QC: Laval, suburbs/banlieue of Montréal; officially confirmed • officiellement confirmé | — | 1–354 +
(210, 580, 610, + (–TEST/–8378 ou/or –BILL$/–2455$) |
|
819 873 |
468 | 🇨🇦 QC: Gatineau/Hull, central, western, and northern Québec • Gatineau/Hull, le centre, l’ouest, et le nord du Québec | — | 1–468 + (210 or/ou 610) + –TEST(–8378) or/ou –BILL$(–2455)$ | |
204 431 |
584 | 🇨🇦 MB: entire/l’ensemble de la province | — | 584-610-TEST 584-610-BILL$ |
|
209 | 350 | CA: Stockton, Modesto; (The 209 area code was expected to run out of numbers around 2026 or 2027, but updated projections advanced that date to late 2022. Despite having more than a year to prepare, the California Public Utilities Commission dithered and delayed for no apparent reason, waiting until well after the last possible moment to rubber-stamp the obviously inevitable conclusion. On the CPUC announced that area code 350 will be added as an overlay on 209 in late 2022, but they still left open the effective date for the overlay. Finally, on , the effective date of was announced.) | 350-350-1350 | ||
516 | 363 | NY: Nassau County (western Long Island); (516 & 363 overlay) | 363-990-TEST | ||
707 | 369 | CA: north coast of California, Santa Rosa, Napa, Eureka | 369-369-1369 | ||
309 | 861 | IL: Bloomington, Peoria, Quad Cities | 861-861-0861 | ||
561 | 728 | FL: Palm Beach County | 728-728-1728 | ||
845 | 329 | NY: Poughkeepsie, north suburbs of NYC (except Westchester County) | 329-990-TEST | ||
513 | (283) | OH: Cincinnati; (Reinstated; back in 2001, 283 was announced as the new overlay code, but then, in 2002, 283 was assigned as a prefix in 513 (i.e., numbers of the form 513-283-xxxx), which usually would mean that 283 would not be used as an overlay, due to the obvious potential for confusion. However, the PUCO announced that 283 will be the overlay, effective ) | 283-283-0283 | ||
506 | (428) | 🇨🇦 NB:
entire province of New Brunswick, Canada • l’ensemble de la province du Nouveau-Brunswick |
|
|
1–428 + (580, 610, or/ou 999) + –TEST(–8378) or/ou –BILL$(–2455)$ |
920 | (274) | WI: Green Bay, northeastern; (originally scheduled for 2012, finally scheduled for , but now advanced by 9½ months) |
|
|
274-274-0274 |
867 | — | 🇨🇦 Northwest Territories: Yellowknife local calling area only changes to mandatory 10-digit local calls; (note: Yukon, Nunavut, and the rest of NWT get to keep 7-digit local calls) | (n/a) | (not applicable) | |
807 | — | 🇨🇦 ON: westernmost part, from Lake Superior (Thunder Bay) to Hudson Bay (Fort Severn/ᐗᔕᐦᐅ ᐃᓂᓂᐗᐠ); 807 changes to mandatory 10-digit local calling for absolutely no valid reason; see Why is Thunder Bay losing 7-digit local calling? | (n/a) | (not applicable) | |
301 240 |
(227) | MD: Silver Spring, suburbs of Washington, D.C. | — | 227-990-TEST | |
519 etc. |
(382) | 🇨🇦 ON: London, Windsor | — | 382-610-TEST 382-610-BILL$ |
|
500 etc. |
(532) | non-geographic: more numbers for iPads, tablets, etc. — mostly non-dialable from ordinary phones | — | (none) | |
618 | (730) | IL: East St. Louis, southern | 730-730-1730 | ||
305 786 |
(645) | FL: Miami/Dade, Florida Keys | — | 645-645-1645 | |
716 | (624) | NY: Buffalo, western tip | 624-624-1624 | ||
480 602 623 |
480 602 623 |
AZ: Phoenix metro area; the boundaries from the 602/480/623 split will be erased, creating the 602 & 480 & 623 overlay; in practice, mostly new 623 numbers will be assigned into the current 480 and 602 areas; the 480‡ area has mandatory 10D local calls due to The Big 10D | (none) | ||
608 | (353) | WI: Madison, southwestern | 353-353-1353 | ||
816 | (975) | MO: Kansas City; (suspended in 2002, finally resurrected in 2021) | 975-975-1975 | ||
804 | (686) | VA: Richmond, Petersburg; 804 & 686 overlay | 686-990-TEST | ||
870 | (327) | AR: Jonesboro, Pine Bluff, southern, eastern, north central (surrounds Little Rock on 3 sides) originally announced for but postponed indefinitely, finally scheduled for , but then advanced by 3½ months to ; note: area code 870 is not affected by “The Big 10D” and will thus retain 7-digit local calls until the overlay |
|
|
327-327-1327 |
904 | (324) | FL: Jacksonville | 324-324-0324 | ||
440 | (436) | OH: Lorain, Ashtabula | 436-436-1436 | ||
573 | (235) | MO: Columbia, Jefferson City, Cape Girardeau, eastern Missouri outside the St. Louis metro area | 235-235-1235 | ||
864 | (821) | SC: Greenville, Spartanburg, northwestern; note: area code 864 is not affected by “The Big 10D” and will keep 7-digit local calls until a month before the overlay | 821-821-0821 | ||
416 etc. |
(942) | 🇨🇦 ON: Toronto (only • seule); new area code and date are tentative • indicatif et date sous réserve | — | t.b.a. • a.c. | |
604 250 etc. |
(257) | 🇨🇦 BC: British Columbia, entire province • l’ensemble de la province de la Colombie-Britannique; new area code and date are tentative • indicatif et date sous réserve | — | t.b.a. • a.c. | |
207 | (tba) | ME: entire state of Maine; overlay was projected for 2023 or 2024, but has been pushed back to about . My best guess for the new area code is 258. | t.b.a. | ||
313 734 |
(679) | MI: Detroit, Ann Arbor; (suspended; 679 will overlay 313, circa 2026, and expand to also overlay 734, circa 2038. Neither 313 nor 734 is affected by “The Big 10D.”) | 2026 ? | 2026 ? | t.b.a. |
709 | (879) | 🇨🇦 NL: entire province of Newfoundland & Labrador, Canada (postponed indefinitely) • l’ensemble de la province de Terre-Neuve-et-Labrador, Canada (remis indéfiniment); (10-digit local dialing mandatory beginning • composition de 10 chiffres pour les appels locaux obligatoire à partir du ) |
|
2028? |
1–879 + (610, 620, 630, 640, 710, 777, 888, or/ou 999) + (–TEST/–8378 or/ou –BILL$/–2455$) |