Area Code +91-81100-(00000...99999) located in Mobile Telephony, Tamil Nādu (TN), more detail is as below. Place International Dialing Code : 91 International Prefix : 00 National Prefix : 0 National Destination Code : 81100 Subscriber Number From : 00000 Subscriber Number To : 99999 National Destination Code Length : 5 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : Vodafone Cellular 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 : Mobile Telephony Timezone : Asia/Kolkata Coordinated Universal Time : +05:30 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 11.1300 Longitude : 78.6600 ‹ previous : +91-81099-(00000...99999) next › : +91-8110-(200000...299999) Dialling Instructions For trunk calls: 0 81100 00000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 91 81100 00000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 00000 ~ 99999 (Count: 100,000) Example: +91-81100-00000 / 0091-81100-00000 (081100-00000 / 0-81100-00000) +91-81100-00001 / 0091-81100-00001 (081100-00001 / 0-81100-00001) +91-81100-00002 / 0091-81100-00002 (081100-00002 / 0-81100-00002) +91-81100-00003 / 0091-81100-00003 (081100-00003 / 0-81100-00003) +91-81100-00004 / 0091-81100-00004 (081100-00004 / 0-81100-00004) ...+91-81100-xxxxx / 0091-81100-xxxxx (081100-xxxxx / 0-81100-xxxxx) ...+91-81100-99995 / 0091-81100-99995 (081100-99995 / 0-81100-99995) +91-81100-99996 / 0091-81100-99996 (081100-99996 / 0-81100-99996) +91-81100-99997 / 0091-81100-99997 (081100-99997 / 0-81100-99997) +91-81100-99998 / 0091-81100-99998 (081100-99998 / 0-81100-99998) +91-81100-99999 / 0091-81100-99999 (081100-99999 / 0-81100-99999)