STD code '631' Area / Location name
'631' STD code belongs to 'GAYA'
City Name for the STD code '631' is GAYA, which is in GAYA located in the state of BIHAR
How to make Call to GAYA in GAYA ?
If you are calling from Inside India:
0 + 631 + ( 6 to 8 digits telephone number )
If you are calling from Outside India ( International calling) :
Local Exit code + 91 + 631 + ( 6 to 8 digits telephone number )
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