Country code +44 is the United Kingdom, and +44 74 is the start of a mobile number.
(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.)
Country code +44 is the UK, and +44 7926 is a mobile code, along with the rest of +44 74 through +44 79.
The telephone country code for Vietnam is +84. The area code for Ben Tre is 075, or +84 75 in international format.
An international number beginning with +44 7 is based in the United Kingdom (country code +44). Numbers beginning with +44 70 are personal "follow-me" numbers that can forward to almost anywhere in the world. Numbers beginning with +44 74 through +44 79 are mobile phones and pagers.
Oh, dude, 00447 is the telephone code for the United Kingdom. So, like, if you're trying to make a call to our friends across the pond, that's the number you gotta dial. Just remember to add the country code before you start chatting away about the weather and how much you love their accents.
Dial the Australian international access prefix 0011, followed by the country code 44, followed by the mobile code (omitting the leading 0 from the domestic number), and then the subscriber number. Mobiles in the UK are in the range +44 74 through +44 79.
74-30 = 44
The country code and area code of SzekszÌÁrd, Hungary is 36, (06)74.
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.