Area Code +91-4637-(400000...499999) located in VALLIYOOR, Tamil Nādu (TN), more detail is as below. Place International Dialing Code : 91 International Prefix : 00 National Prefix : 0 National Destination Code : 4637 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 : TN Region Name : Tamil Nādu City : VALLIYOOR Timezone : Asia/Kolkata Coordinated Universal Time : +05:30 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 8.4100 Longitude : 77.6200 ‹ previous : +91-4637-(300000...399999) next › : +91-4637-(500000...599999) Dialling Instructions For trunk calls: 0 4637 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 91 4637 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 499999 (Count: 100,000) Example: +91-4637-400000 / 0091-4637-400000 (04637-400000 / 0-4637-400000) +91-4637-400001 / 0091-4637-400001 (04637-400001 / 0-4637-400001) +91-4637-400002 / 0091-4637-400002 (04637-400002 / 0-4637-400002) +91-4637-400003 / 0091-4637-400003 (04637-400003 / 0-4637-400003) +91-4637-400004 / 0091-4637-400004 (04637-400004 / 0-4637-400004) ...+91-4637-xxxxxx / 0091-4637-xxxxxx (04637-xxxxxx / 0-4637-xxxxxx) ...+91-4637-499995 / 0091-4637-499995 (04637-499995 / 0-4637-499995) +91-4637-499996 / 0091-4637-499996 (04637-499996 / 0-4637-499996) +91-4637-499997 / 0091-4637-499997 (04637-499997 / 0-4637-499997) +91-4637-499998 / 0091-4637-499998 (04637-499998 / 0-4637-499998) +91-4637-499999 / 0091-4637-499999 (04637-499999 / 0-4637-499999)