Sri Lanka is telephone country code +94 (dialed as 00 94 from many places), and numbers beginning with +94 7 are mobile phones. However, +94 79 is an unused range, so it is an invalid number (as of Oct. 2012).
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
That's in the Laccadive Sea between India and Sri Lanka.
6 N 79 E is about 73 miles in the sea off the south western coast of Sri Lanka. The nearest city is Colombo.
6.55 N 79.52 E is in the Laccadive Sea. The nearest city is Colombo, the capital of Sri Lanka.
Latitude: 6°54′N Longitude: 79°54′E
There's no country there. That point is in the sea off the southwest coast of Sri Lanka, about 87 miles southwest of Colombo.
The country code and area code of Jalingo, Nigeria is 234, (0)79.
The country code and area code of Gulmi, Nepal is 977, (0)79.
The country code and area code of Navoi, Uzbekistan is 998, (8)79.
The country code and area code of Baja, Hungary is 36, (06)79.
The country code and area code of Sergipe- SE, Brazil is 55, (0)79.
The country code and area code of Ahemdabad Local- Ahmedabad, India is 91, (0)79.
The telephone country code for Vietnam is +84. The area code for Soc Trang is 079, or +84 79 in international format.