Area Code +91-6421-(500000...599999) located in NAUGACHIA, Bihār (BR), more detail is as below. Place International Dialing Code : 91 International Prefix : 00 National Prefix : 0 National Destination Code : 6421 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 : BR Region Name : Bihār City : NAUGACHIA Timezone : Asia/Kolkata Coordinated Universal Time : +05:30 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 25.3900 Longitude : 87.1000 ‹ previous : +91-6421-(400000...499999) next › : +91-6421-(600000...699999) Dialling Instructions For trunk calls: 0 6421 500000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 91 6421 500000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 500000 ~ 599999 (Count: 100,000) Example: +91-6421-500000 / 0091-6421-500000 (06421-500000 / 0-6421-500000) +91-6421-500001 / 0091-6421-500001 (06421-500001 / 0-6421-500001) +91-6421-500002 / 0091-6421-500002 (06421-500002 / 0-6421-500002) +91-6421-500003 / 0091-6421-500003 (06421-500003 / 0-6421-500003) +91-6421-500004 / 0091-6421-500004 (06421-500004 / 0-6421-500004) ...+91-6421-xxxxxx / 0091-6421-xxxxxx (06421-xxxxxx / 0-6421-xxxxxx) ...+91-6421-599995 / 0091-6421-599995 (06421-599995 / 0-6421-599995) +91-6421-599996 / 0091-6421-599996 (06421-599996 / 0-6421-599996) +91-6421-599997 / 0091-6421-599997 (06421-599997 / 0-6421-599997) +91-6421-599998 / 0091-6421-599998 (06421-599998 / 0-6421-599998) +91-6421-599999 / 0091-6421-599999 (06421-599999 / 0-6421-599999)