Countries in North America

click on the map

unlike other "World Telecom Zones"
North America has only one
country code
the same one for the USA, Canada
and the States of the Carribbeans 
+1 . --- . --- ----
this Country code +I is followed by uncountable area codes ....
the 'north american numbering plan' 
is a little different from the rest of the World
all North American Phonenumbers have a 3 digit Area Code
and a 7 digit Number

is organised according
to the different IDD
(International Direct Dialing) Telephone Zones:

Phone Book of North America.com  (+I)
Phone Book of Africa.com  (+2)
Phone Book of Europe.com  (+3 or +4 )
Phone Book of Latin America.com  (+5)
Phone Book of Oceania.com (+6)
Phone Book of Russia.com (+7)
Phone Book of North Asia.com  (+8)
Phone Book of the Middle/Far East.com  (+9)

secrets behind North American phonecodes:
the International country codes got issued in 1964,
with the creation of IDD (International Direct Dial)
repacing manual Phone Operators

Almost every country has his own country code
exept those located in North America:
the USA  and Canada
received the same country code
+1

in fact  Alexander Bell,
the inventor of the phone
lived in both the USA  and Canada
so both countries got the same county code ...

and to avoid confusion
the Islands of the Carribbeans
Mexico (switched to Latin America in 1968)
and some Central America countries (switched to Latin America in 1972)
got integrated in the North American +I country code

the North American Numbering Plan NANP
had already been set up in I952,
giving each region a 3 digit area code
the International access to North America Phones became
+1 --- (3 digit area code)  --- ---- (7 digit number)

the lenght of Phonenumbers have never changed,
but with more and more phonelines getting into service
new area codes needed to be added to avoid saturation

in the beginning US area  codes were simple:
212 for New York,  213 for LA,  214 for Dallas,  215 for Pennsylvania,
but today,  there are no more guidelines 
the State of California alone has more than 29 different area codes
(all of Latin America has 28 different country codes)
and there are more all the time ...


still today I30 years after the Invention of the Phone
many leading Phonecompanies 
are called  Bell,
after Alexander Bell

the famous Bell logo
showing a 'Bell' that rings
is a trademark of different 
Baby Bell phonecompanies