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E1 Phonebook Configuration MultiVOIP User Guide
318
International Telephony Numbering Plan Resources
Due to the expansion of telephone number capacity to accommodate
pagers, fax machines, wireless telephony, and other new phone
technologies, numbering plans have been changing worldwide. Many
new area codes have been established; new service categories have been
established (for example, to accommodate GSM, personal numbering,
corporate numbering, etc.). Below we list several web sites that present
up-to-date information on the telephony numbering plans used around
the world. While we find these to be generally good resources, we
would note that URLs may change or become nonfunctional, and we
cannot guarantee the quality of information on these sites.
URL Description
http://phonebooth.interocitor.net
/wtng
The World Telephone
Numbering Guide
presents excellent
international
numbering info that
is both broad and
detailed. This
includes info on re-
numbering plans
carried out world-
wide in recent years
to accommodate new
technologies.
http://www.oftel.gov.uk/numbers
/number.htm
UK numbering plan
from the Office of
Telecommunications,
the UK telephony
authority.
http://www.itu.int/home/index.html The International
Telecommunications
Union is an excellent
source and authority
on international
telecom regulations
and standards.
National and
international number
plans are listed on
this site.