Country code +98 (dialed as 00 98 or 011 98 from many countries) is Iran. Note that you must drop the trunk prefix 0 from the beginning of the Iranian number when calling internationally. For example, Tehran's area code 021 becomes +98 21.
Tehran is area code +98 21.
Other area codes are three digits, beginning with +98 1 through +98 7.
Mobile numbers begin with +98 9.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Country code +992 (dialed as 00 992 from many places) is Tajikistan.
Dushanbe is area code +992 372.
Other landline area codes begin with +992 3.
Wireless local loop numbers begin with +992 4.
Mobile numbers begin with +992 9.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
The country code and area code of Golestan, Iran is 98, (0)171.
There is no 909 country code.
The country code and area code of Babol, Iran is 98, (0)111.
Country code +98 is Iran.
There is no telephone country code +897, nor +89, nor any other country code beginning with +89. There are no valid telephone numbers beginning with +89.
Mashhad is in Iranian telephone area code 0511, which is +98 511 in international format.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.