The Area Codes of India: City/Town or RegionArea code 1.Bangalore, Karnataka80 (+91 80) 2.Bareilly, Uttar Pradesh581 (+91 581) 3.Belgaum, Karnataka831 (+91 831) 4.Bhagalpur, Bihar641 (+91 641) 5.Bhopal, Madhya Pradesh755 (+91 755) 6.Bhubaneswar, Odisha674 (+91 674)