Area Code +91-7666-(000000...999999) located in Mobile - Mumbai Metro Telecom Circle, more detail is as below. Place International Dialing Code : 91 International Prefix : 00 National Prefix : 0 National Destination Code : 7666 Subscriber Number From : 000000 Subscriber Number To : 999999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : Reliance Communication Ltd. Click here to buy India Area Code Database Other Information Language Code : hi (Hindi) Country Number : 356 (India) Country Code : IN (India) City : Mobile - Mumbai Metro Telecom Circle Timezone : Asia/Kolkata Coordinated Universal Time : +05:30 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 19.0100 Longitude : 72.8500 ‹ previous : +91-7665-(000000...999999) next › : +91-7667-(000000...999999) Dialling Instructions For trunk calls: 0 7666 000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 91 7666 000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 000000 ~ 999999 (Count: 1,000,000) Example: +91-7666-000000 / 0091-7666-000000 (07666-000000 / 0-7666-000000) +91-7666-000001 / 0091-7666-000001 (07666-000001 / 0-7666-000001) +91-7666-000002 / 0091-7666-000002 (07666-000002 / 0-7666-000002) +91-7666-000003 / 0091-7666-000003 (07666-000003 / 0-7666-000003) +91-7666-000004 / 0091-7666-000004 (07666-000004 / 0-7666-000004) ...+91-7666-xxxxxx / 0091-7666-xxxxxx (07666-xxxxxx / 0-7666-xxxxxx) ...+91-7666-999995 / 0091-7666-999995 (07666-999995 / 0-7666-999995) +91-7666-999996 / 0091-7666-999996 (07666-999996 / 0-7666-999996) +91-7666-999997 / 0091-7666-999997 (07666-999997 / 0-7666-999997) +91-7666-999998 / 0091-7666-999998 (07666-999998 / 0-7666-999998) +91-7666-999999 / 0091-7666-999999 (07666-999999 / 0-7666-999999)