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Siwan (Bihar) STD Codes

Listed below are the STD codes of top 3 places in Siwan district of Bihar.

Location STD Code
Andar06154
Siwan06154
Hasanpura06154

NOTE: The STD code always precedes the landline number of the person you are calling when the caller and the receiver are located in different cities.

Indian STD Code > Bihar STD Code > Siwan STD Code