Area Code +91-6421-(600000...699999) 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 : 600000 Subscriber Number To : 699999 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 : Tata Teleservices Ltd (TTSL) 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-(500000...599999) next › : +91-6421-(710000...719999) Dialling Instructions For trunk calls: 0 6421 600000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 91 6421 600000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 600000 ~ 699999 (Count: 100,000) Example: +91-6421-600000 / 0091-6421-600000 (06421-600000 / 0-6421-600000) +91-6421-600001 / 0091-6421-600001 (06421-600001 / 0-6421-600001) +91-6421-600002 / 0091-6421-600002 (06421-600002 / 0-6421-600002) +91-6421-600003 / 0091-6421-600003 (06421-600003 / 0-6421-600003) +91-6421-600004 / 0091-6421-600004 (06421-600004 / 0-6421-600004) ...+91-6421-xxxxxx / 0091-6421-xxxxxx (06421-xxxxxx / 0-6421-xxxxxx) ...+91-6421-699995 / 0091-6421-699995 (06421-699995 / 0-6421-699995) +91-6421-699996 / 0091-6421-699996 (06421-699996 / 0-6421-699996) +91-6421-699997 / 0091-6421-699997 (06421-699997 / 0-6421-699997) +91-6421-699998 / 0091-6421-699998 (06421-699998 / 0-6421-699998) +91-6421-699999 / 0091-6421-699999 (06421-699999 / 0-6421-699999)