Shariatpur is in area code 0662, or +880 662 in international format.
(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.)
The country code and area code of Shariatpur, Bangladesh is 880, (0)601.
The country code and area code of Chakaria, Bangladesh is 880, (0)3422.
The country code and area code of Balagonj, Bangladesh is 880, (0)8222.
The country code and area code of Maulavibazar, Bangladesh is 880, (0)861.
The country code and area code of Chandpur, Bangladesh is 880, (0)841.
The country code and area code of Agailjhara, Bangladesh is 880, (0)4323.
The country code and area code of Akhaura, Bangladesh is 880, (0)8522.
The country code and area code of Alamdanga, Bangladesh is 880, (0)7622.
The country code and area code of Anwara, Bangladesh is 880, (0)3029.
The country code and area code of Araihazar, Bangladesh is 880, (0)6722.
The country code and area code of Ashuganj, Bangladesh is 880, (0)8528.
The country code and area code of Babugonj, Bangladesh is 880, (0)4327.