Area Code +91-3771-(400000...499999) located in MARIANI, Assam (AS), more detail is as below. Place International Dialing Code : 91 International Prefix : 00 National Prefix : 0 National Destination Code : 3771 Subscriber Number From : 400000 Subscriber Number To : 499999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Bharti Airtel 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 : AS Region Name : Assam City : MARIANI Timezone : Asia/Kolkata Coordinated Universal Time : +05:30 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 26.6600 Longitude : 94.3200 ‹ previous : +91-3771-(300000...399999) next › : +91-3771-(500000...599999) Dialling Instructions For trunk calls: 0 3771 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 91 3771 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 499999 (Count: 100,000) Example: +91-3771-400000 / 0091-3771-400000 (03771-400000 / 0-3771-400000) +91-3771-400001 / 0091-3771-400001 (03771-400001 / 0-3771-400001) +91-3771-400002 / 0091-3771-400002 (03771-400002 / 0-3771-400002) +91-3771-400003 / 0091-3771-400003 (03771-400003 / 0-3771-400003) +91-3771-400004 / 0091-3771-400004 (03771-400004 / 0-3771-400004) ...+91-3771-xxxxxx / 0091-3771-xxxxxx (03771-xxxxxx / 0-3771-xxxxxx) ...+91-3771-499995 / 0091-3771-499995 (03771-499995 / 0-3771-499995) +91-3771-499996 / 0091-3771-499996 (03771-499996 / 0-3771-499996) +91-3771-499997 / 0091-3771-499997 (03771-499997 / 0-3771-499997) +91-3771-499998 / 0091-3771-499998 (03771-499998 / 0-3771-499998) +91-3771-499999 / 0091-3771-499999 (03771-499999 / 0-3771-499999)