Old | New | Area Affected | 10D/1+10D Dialing | Overlay | Test Number |
---|---|---|---|---|---|
214 etc. |
945 | TX: Dallas and suburbs; area code 945 was 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 |
600 622 |
633 | 🇨🇦 Canada: non-geographic numbering (includes caller-pays cellular and machine-to-machine) | — | (none) | |
867 | — | 🇨🇦 Northwest Territories: Yellowknife local calling area only changed 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 changed to mandatory 10-digit
local calling for absolutely no valid reason;
see
Why is Thunder Bay losing
7-digit
local calling?
(Note: Thunder Bay itself got a reprieve until .) |
(Thunder Bay only) |
(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$ |
|
618 | 730 | IL: East St. Louis, southern | 730-730-1730 | ||
305 786 |
645 | FL: Miami/Dade, Florida Keys | — | 645-645-1645 | |
480 602 623 |
480 602 623 |
AZ: Phoenix metro area; the boundaries from the 602/480/623 split were 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 already had 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 | ||
716 | (624) | NY: Buffalo, western tip | 624-624-1624 | ||
500 etc. |
(532) | non-geographic: more numbers for iPads, tablets, etc. — mostly non-dialable from ordinary phones | — | (none) | |
804 | (686) | VA: Richmond, Petersburg; 804 & 686 overlay | 686-990-TEST | ||
709 | (879) | 🇨🇦 NL: entire province of Newfoundland & Labrador, Canada (was postponed indefinitely, but now scheduled for early 2024) • l’ensemble de la province de Terre-Neuve-et-Labrador, Canada (était remis indéfiniment, mais désormais prévu début 2024); (mandatory 10-digit local dialing began • la composition obligatoire de 10 chiffres pour les appels locaux commença le ) |
|
(official/ officielle) |
1–879 + (610, 630, or/ou 640) + (–TEST/–8378 or/ou –BILL$/–2455$) |
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.
Arkansas is also planning to implement a “boundary elimination” overlay on the entire state in early 2025; see the note below for more information. |
|
|
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 | ||
507 | (924) | MN: Rochester, Mankato, southern | 924-924-1924 | ||
213 323 |
(738) | CA: Downtown Los Angeles (will overlay 213 & 323, date t.b.d.) | — | 738-738-1738 | |
530 | (837) | CA: Redding, Chico, Davis, Lassen, northeastern | 837-837-1837 | ||
501 479 870 (327) |
501 479 870 (327) |
AR: entire state;
the 870 & 327 overlay
will expand to cover the entire state in a
“boundary elimination” overlay, currently planned for
Area code 501 (Little Rock) already has 10D local calls as a result of “The Big 10D” and area codes 870 & 327 will have 10D as a result of the initial overlay, so only 479 (northwest Arkansas) will have to change to 10D in 2025. |
(none) | ||
423 | (729) | TN: Chattanooga, Johnson City, not Knoxville; 729 overlay expected in early 2025. Area code 423 will retain 7-digit local calls until shortly before the overlay takes effect | 729-729-0729 | ||
416 etc. |
(942) | 🇨🇦 ON: Toronto (only • seulement) | — | 1–942–610 + (–TEST/–8378 or/ou –BILL$/–2455$) | |
604 250 etc. |
(257) | 🇨🇦 BC: British Columbia, entire province • l’ensemble de la province de la Colombie-Britannique | — | 1–257 + (580, 610, 710, 810, or/ou 999) + (–TEST/–8378 or/ou –BILL$/–2455$) | |
206 | (564) | WA: Seattle; 360 & 564 overlay will expand to include 206, and will later expand to include 425 and 253 | (none) | ||
318 | (457) | LA: Shreveport, Alexandria, Monroe, northern | 457-457-1457 | ||
313 734 |
(679) | MI: Detroit, Ann Arbor; (officially scheduled); 679 will overlay 313 on , and expand to also overlay 734, circa 2026. Neither 313 nor 734 is affected by “The Big 10D.” | 679-679-0679 | ||
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. |