Area Code +91-78904-(00000...99999) located in KOLKATA, West Bengal (WB), more detail is as below. Place International Dialing Code : 91 International Prefix : 00 National Prefix : 0 National Destination Code : 78904 Subscriber Number From : 00000 Subscriber Number To : 99999 National Destination Code Length : 5 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : Idea Cellular Ltd Click here to buy India Area Code Database Other Information Language Code : hi (Hindi) Country Number : 356 (India) Country Code : IN (India) Region Code : WB Region Name : West Bengal City : KOLKATA Timezone : Asia/Kolkata Coordinated Universal Time : +05:30 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 22.5700 Longitude : 88.3600 ‹ previous : +91-78903-(00000...99999) next › : +91-78905-(00000...99999) Dialling Instructions For trunk calls: 0 78904 00000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 91 78904 00000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 00000 ~ 99999 (Count: 100,000) Example: +91-78904-00000 / 0091-78904-00000 (078904-00000 / 0-78904-00000) +91-78904-00001 / 0091-78904-00001 (078904-00001 / 0-78904-00001) +91-78904-00002 / 0091-78904-00002 (078904-00002 / 0-78904-00002) +91-78904-00003 / 0091-78904-00003 (078904-00003 / 0-78904-00003) +91-78904-00004 / 0091-78904-00004 (078904-00004 / 0-78904-00004) ...+91-78904-xxxxx / 0091-78904-xxxxx (078904-xxxxx / 0-78904-xxxxx) ...+91-78904-99995 / 0091-78904-99995 (078904-99995 / 0-78904-99995) +91-78904-99996 / 0091-78904-99996 (078904-99996 / 0-78904-99996) +91-78904-99997 / 0091-78904-99997 (078904-99997 / 0-78904-99997) +91-78904-99998 / 0091-78904-99998 (078904-99998 / 0-78904-99998) +91-78904-99999 / 0091-78904-99999 (078904-99999 / 0-78904-99999)