codes (toll-free, information services, etc.) in North America, updated
Nueva numeración en
México en 2019 •
new numbering in Mexico in 2019
[español • English]
Những thay đổi
lớn đối với
số điện thoại
trong năm 2017 và 2018
Major changes to telephone numbers in
Vietnam in 2017 and 2018
Changements majeurs à la numérotation téléphonique
vietnamienne en 2017 et 2018
[vi=Tiếng Việt • en=English • fr=français]
Telephone and Internet Country Codes, specially formatted for
languages (ar-Arabic fa-Farsi ur-Urdu he-Hebrew yi-Yiddish)
International telephone and Internet
in English, optimized for Google Translate
Map and comprehensive multilingual listing of telephone country codes,
city codes, Internet country codes, and time zones for
map updated 2018‑03‑19,
plus a special update page on
2010 renumbering — new numbers in effect
NOTE: Mobile telephone numbers in
GN Guinea (+224)
details (English • Français) on the
Table of information about area codes in the
and other nearby regions, updated
Map of Caribbean
area codes •
New map with time zones,
map updated 2016‑01‑01,
text updated 2018‑11‑24.
other related sites
(Note: these sites are maintained by other people or companies.)
This site contains information about the
North American Numbering Plan,
the telephone numbering scheme that serves the United States, Canada,
and several other countries and territories in the region.
The NANP divides the participating countries into area codes, each of which
is a three-digit number. Within each area code, a telephone number is always
7 digits, except for special codes like the 911 emergency number.
In the late 1990s, the NANP added new area codes at a rate unprecedented in
its 50-year history, with demand fueled primarily by the outdated system of
allocating blocks of numbers to telephone companies.
More efficient allocation methods, coupled with consolidation in the
telecommunications industry, have slowed the flood of new area codes to
barely a trickle, from 45 in 1997 to only 3 in 2007.
Notably, the introduction of new area codes has shifted decisively from
traditional area code splits to overlays. As of mid-2013, there are no
area code splits pending or planned anywhere in the NANP!
This site contains information about the original area codes from 1947,
their evolution to the current state, and future developments, including
area code splits and area code overlays.
These pages are designed with limited graphics to speed loading times.
The tables of information require a browser that supports HTML tables.
Almost all browsers do, but text-based browsers (e.g., Lynx) may display
the information in a jumbled form. The maps are displayed as GIF or PNG
images, which can be displayed on any graphical browser.
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