Now with Time Zones!

The map now shows time zones! From the second Sunday in March until the first Sunday in November each year — for example, from 2019‑03‑10 to 2019‑11‑03, and from 2020‑03‑08 to 2020‑11‑01 — most areas observe Daylight Saving Time, moving clocks forward one hour. The clock for each time zone indicates Standard Time first and then Daylight Saving Time. However, some areas do not observe DST: Hawaii, Arizona (except the Navajo Nation), part of British Columbia, most of Saskatchewan, small parts of Ontario and Québec, Puerto Rico, the U.S. Virgin Islands, Guam, and the CNMI. These areas observe Standard Time year-round, and so are displayed with only one time on the clock. (Note that the entire state of Indiana now does observe DST.) Note also that the Aleutian Islands in extreme southwestern Alaska are in the Hawaii-Aleutian Time Zone (2:00•3:00), and a small portion of Nunavut in northern Canada is in Eastern Standard Time year-round (7:00). To convert to international notation, subtract 12 hours from the time indicated on the map; for example, Pacific Time is shown as 4:00•5:00, corresponding to UTC–08:00 in winter and UTC–07:00 in summer.

The “Locator” page (en français, en español) lists the principal time zone and major cities for each area code, and is also the quickest way to answer the question “Where is area code ###?”

Area Code Overlays

Due to the increasing use of overlays, the map now shows only the first area code in an overlay area, with a plus sign to indicate a current or planned overlay. The only concentrated overlays, in Florida, Oregon and British Columbia, have been “unconcentrated,” expanding to cover the entirety of the original area codes. Area code 870 in Arkansas was planned for an overlay with 327, but the overlay has been indefinitely postponed, probably until about 2023. Several other areas that approved overlays about a decade ago but then postponed them due to number conservation efforts or other factors, have finally brought those overlays into effect. In the table below, “Dom. Rep.” is the Dominican Republic (la República Dominicana). The states are slightly out of alphabetical order to avoid breaking a state across two columns. (For more detailed information about current and future overlays, see the overlays.html page. For other area code information, check the main page.)

Table Notations:
% concentrated overlay (new area code covers only part of old) [none remaining]
( ) overlay has not yet taken effect
@ 321 is a separate area code for the coastal area (the “Space Coast” of Florida), but also an overlay of the inland 407 area (including Orlando and DisneyWorld)
* one overlay code covers multiple original code areas
§ “Boundary elimination overlay” — a previous split is undone, creating an overlay of the two existing area codes
‡ (see note below)

This map shows all telephone area codes in use as of 2018‑10‑08 in the United States and Canada. Check the separate page for information about the 19-way split in the Caribbean area. There is also a Caribbean map, which also now shows time zones. Some of the area codes shown above may not yet be in use. For information on the effective dates of new area codes, see the table on the separate page. All boundaries shown are approximate.

Errata, Updates and Notes:

• Also not shown on the map are three U.S. territories in the Pacific: Guam 671, American Samoa 684, and the Commonwealth of the Northern Mariana Islands 670. (For more information, see the note below.)


• The last time there was an area code split in the NANP was New Mexico on 2007‑10‑07. The last split in Canada was Alberta on 1999‑01‑25. Since then, it’s been all overlays!


• California implemented two “boundary elimination overlays”, which means that two adjacent area codes combine and intermingle into a single overlay area. In Los Angeles, area codes 213 and 323 merged on 2017‑08‑01; in San Diego, area codes 619 and 858 merged on 2018‑06‑19.


• Area code 407 in Florida performed a Double-Back-Somersault Reverse Concentrated Overlay with a Twist in which the “Space Coast” changed to only area code 321, while the Orlando area became an overlay of 407 & 321. The Orlando area again ran short of numbers, so on 2019‑06‑04 area code 689 was added as a further overlay of the 407 & 321 area, although, at least for the time being, 321 will continue also to be the non‑overlay code for the Space Coast.


• ‡ Overlay area code 564 in western Washington state currently covers only area code 360. However, 564 will also be used to overlay area codes 206, 253, and 425 as they run out of numbers. Thus, 564 will eventually overlay all of the western part of Washington state.


• Illinois has three planned area code overlays that have been on “real soon now” status for years, waiting to be launched on very short notice when the existing area code reaches a certain trigger point as it runs low on numbers. The overlays of area code 217 and 708 are now estimated to happen in 2020 or 2021; the 618 & 730 overlay probably will not happen until the year 2025!


• The Canadian province of Newfoundland and Labrador (Terre-Neuve-et-Labrador) is planning to overlay its area code 709 with the new code 879. The overlay was scheduled for 2018‑11‑24, but recent data showed the need for relief to be less urgent than originally projected. The final effective date for the 709 & 879 overlay is 2022‑05‑20.


• Jamaica implemented an overlay 2019‑04‑30. Existing area code 876 was overlaid with new area code 658. [The overlay was originally scheduled for 2018‑11‑30, but was postponed by 5 months to allow more time for businesses to update equipment to handle mandatory 10‑digit dialling.]


• The island of Saint Martin in the Caribbean is divided into two territories. The north side is the French overseas collectivity of Saint-Martin; the south side is the Dutch municipality of Sint Maarten, until recently part of the Netherlands Antilles. However, Sint Maarten has politically separated from the rest of the Netherlands Antilles, although it remains a part of the Kingdom of the Netherlands. Along with the political change, Sint Maarten also changed from the old international country code of +599 (011–599 as dialed from North America) to the North American area code 721 (+1 721, for the rest of the world). This change did not affect French Saint-Martin (+590) nor the rest of the Netherlands Antilles (+599 and +297). The 7-digit number in Sint Maarten remained the same; all existing numbers begin with ‘5’. The telephone code change was originally planned for 2010‑05‑31, but was postponed until 2011‑09‑30, with permissive dialing until 2012‑09‑30. Use of the new North American area code +1 721 is now mandatory. Sint Maarten’s new Internet domain, .sx, is now active. (informatie in het Nederlands • renseignements en français)


• Area code 920, serving northeastern Wisconsin including Green Bay, was scheduled for an overlay in 2014, but number conservation measures have allowed the overlay to be postponed indefinitely (probably until about 2030!).


• Area code 870, serving most of Arkansas, was scheduled for an overlay in 2013, but number conservation measures have allowed the overlay to be postponed indefinitely (probably until about 2023).


• Area code 270 in Kentucky was planned for a geographic split, with the westernmost part of the state changing to area code 364, but the split was repeatedly postponed and finally cancelled — but then brought back as an overlay in 2014!


• Area code 814 in western Pennsylvania was set for a geographic split some time in 2012 or 2013. However, number conservation efforts have given 814 some breathing room. As a result, the split has been postponed, and the PPUC is reopening the question of split or overlay. The new area code is expected to be introduced in 2020 or 2021. Although the PPUC has not officially decided, it’s a good bet that it will be an overlay.


• The small town of Hyder, Alaska, is served by the telephone system in adjacent Stewart, B.C., Canada, in area code 250 (but not area codes 604, 778, 236, or 672). Calls to Hyder from other parts of the U.S., including other parts of Alaska, are billed at the international rates for Canada.


• The entire state of Nevada is in the Pacific Time Zone (4:00 • 5:00), with the exception of the town of West Wendover, which is officially in Mountain Time (5:00 • 6:00) to match neighboring Wendover, UT. However, several other Nevada towns and rural areas near the Utah or Idaho border unofficially observe Mountain Time.


• Three U.S. territories in the Pacific now have area codes. Guam is area code 671. The Commonwealth of the Northern Mariana Islands (incl. Saipan and Tinian) is area code 670. American Samoa is area code 684. All three can be dialed “one-plus” from the US and Canada, or using country code +1 from outside the NANP. Calls from the US mainland to these locations should be billed as domestic calls, but may or may not be included in “nationwide” calling plans. However, note that the independent state of Samoa (formerly known as Western Samoa) retains country code +685 (i.e., dial 011–685). Furthermore, the CNMI’s old country code +670 (i.e., 011–670) has been recycled for Timor Leste (East Timor), an island nation north of Australia.

Colophon:
The map above is hand-drawn, using an underlay of the state and county maps in the Map Art collection from Map Resources <www.MapResources.com> The data for the map is compiled from various telecom industry sources, including state regulatory agencies, local exchange carriers, and published telephone listings. The map uses a Plat Carré projection. The map and all derivative works are copyrighted, with the copyright registered with the United States Library of Congress. Commercial use requires written permission from the copyright holder.

PRINTING THE MAP:
It was not possible to fit all U.S. and Canadian area codes into a map size that would print at 100% size on a normal U.S. Letter size page. The best way to print it is to load only the map into your browser or into a graphics program, so that you can print it in “Landscape” mode and at a suitable reduction. The map is 1174 x 1624 pixels, so a reduction of 45%, or a print setting of at least 150 dots per inch, will allow it to fit easily in a single page. If you click on the map above, it will load into its own window, or you can save it to your hard disk. However, you may not redistribute the map in printed or electronic form without a license. Please do not link directly to the map image from other web sites; link to this page <https://www.LincMad.com/areacodemap.html> only.

Brief list of area codes and place names, listed numerically (“Where is area code xxx?”) — Now with Time Zones!
Detailed listing of area codes and place names, listed by state/province (“What cities and towns are in area code xxx in state X?”)
Cumulative listing of all area code splits since 1980, numerically by original area code. (“The old number was in area code xxx; what area codes might it be in now?”)
Listing of international telephone country codes and Internet country codes (ccTLD’s)
NEW! Map of Africa, showing Internet country codes and telephone country and city codes.
Return to LincMad’s Telephone Area Code page

Last updated 2019‑07‑23; map last updated 2018‑10‑08. LincMad.com received over a million visits from 1997 until the counter broke.

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