untangling_the_web

DID: 4046925
UNCLA55IFIEDf1'FO~OFFlelAL use ONLY
Many specialty directories also exist. The World Telephone Numbering Guide
"provides information on the world's telephone numbering formats. This includes
various website links regarding telephone numbering. Area code lists, text articles,
news of phone number changes, number-finding forms are included as much as
feasible."!" Unlike many sources, the WTNG includes information about mobile
telephone systems. This is an exceptionally good and current resource not only for
finding telephone numbers but also for garnering details about telephone systems,
numbering schemes, and regulations around the world.
L b:C
Nmnher Format
Area Code: 3 digits (",as 2-4 digits)
Subscriber Number: ? digits (vas 5-7 digit.a)
Trunk Prefix: 0
Lntecnat.acneI Prefix: 00
Ana code uuormanen
• tei-ir
• fran Telecom mobile number changes
• DCCL
December 2003 - 1\1an1l2004 - mobne changes
Iran mobile numbers were changed illa multi-stage process from December 2003 through March 2004.
17-20 .Ianuary 2004 - mobile rhanges
Changed mobile numbering was introduced in certain areas 011 17-20 January 2004. Permissive/parallel operation of former and new numbering was in effect until20
March 2004.
Place Old numbers Nev numbers Comments
=========== =======;:==
Arnol +98 911 Lz Lxxxx +98 911 121xxxx No change
Arnol +98 911 12Zxxxx +98 911 122xxxx No change
Arnol +98 911 12Sxxxx +98 911 125xxxx No change
Arnol +98 913 Lz Lxxxx +98 911 321xxxx
Arnol +98 913 12Zxxxx +98 911 322xxxx
Babol +98 911 ll1xxxx +98 911 111xxxx No change
Btlbol +98 911 112xxxx +98 911 t az xxxx No change
Babol +98 911 113xxxx +98 911 113x)(xx No change
Babol +98 913 t fxxxxx +98 911 31xxxxx l11x)(xx-114xxxx
Bam +98 911 344xxxx +98 913 144xxxx
Bam +98 913 344xxxx +98 913 344x)(x)( No change
Bandar-e Anzal i +98 911 18xxxxx +98 911 IB)(x)(x)( No change; 181xxxx-183xxxx
Bandar-e Anzali +98 913 181xxxx +98 911 3Blxxxx
World Telephone Numbering Guide
http://www.wtng.info/index.html
ACR's International Calling Codes website provides country and city codes and
adds the ability to list codes numerically. International City Codes also offers an
excellent database of city calling codes. My favorite Internet telephone database is
Americom's International Decoder, which permits you to look up either calling
codes from city names or find out which city anywhere in the world matches a
specific dialing code. Not only does Americom tell you the country and city codes,
114 WTNG Help and Information Page, .
UNCLA55IFIED""FO~ OFFICIAL use ONLY 315