International telephone country code +49 is Germany, and an area code beginning with +49 74 is in the southwestern part of the country, in the vicinity of Rottweil, Baden-Württemberg. However, you need an additional one or two digits to specify the town or village.
(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.)
The telephone country code for Vietnam is +84. The area code for Ben Tre is 075, or +84 75 in international format.
Country code +44 is the UK; 74 is probably a mobile.
The country code and area code of Sayabouri, Laos is 856, (0)74.
The country code and area code of Lambayeque, Peru is 51, (0)74.
The country code and area code of Benguet, Philippines is 63, (0)74.
The country code and area code of Walbrzych, Poland is 48, (0)74.
The country code and area code of Songkhla, Thailand is 66, (0)74.
The country code and area code of Andijan, Uzbekistan is 998, (8)74.
The country code and area code of SzekszÌÁrd, Hungary is 36, (06)74.
74 = LXXIV 49 = XLIX
The country code and area code of Nord-TrÌündelag, Norway is 47, 74.
49/74 is in its simplest form.