Area Code +91-3771-(500000...599999) 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 : 500000 Subscriber Number To : 599999 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 : Sistema Shyam TeleServices Ltd (MTS) 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-(400000...499999) next › : +91-3771-(600000...699999) Dialling Instructions For trunk calls: 0 3771 500000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 91 3771 500000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 500000 ~ 599999 (Count: 100,000) Example: +91-3771-500000 / 0091-3771-500000 (03771-500000 / 0-3771-500000) +91-3771-500001 / 0091-3771-500001 (03771-500001 / 0-3771-500001) +91-3771-500002 / 0091-3771-500002 (03771-500002 / 0-3771-500002) +91-3771-500003 / 0091-3771-500003 (03771-500003 / 0-3771-500003) +91-3771-500004 / 0091-3771-500004 (03771-500004 / 0-3771-500004) ...+91-3771-xxxxxx / 0091-3771-xxxxxx (03771-xxxxxx / 0-3771-xxxxxx) ...+91-3771-599995 / 0091-3771-599995 (03771-599995 / 0-3771-599995) +91-3771-599996 / 0091-3771-599996 (03771-599996 / 0-3771-599996) +91-3771-599997 / 0091-3771-599997 (03771-599997 / 0-3771-599997) +91-3771-599998 / 0091-3771-599998 (03771-599998 / 0-3771-599998) +91-3771-599999 / 0091-3771-599999 (03771-599999 / 0-3771-599999)