If the number starts 0741 - it's a mobile (cell) phone number.
The country code and area code of Nagoan, Bangladesh is 880, (0)741.
The country code and area code of Rottweil, Germany is 49, (0)741.
The country code and area code of Acatepec, Mexico is 52, (01)741.
The country code and area code of Coronel Bogado, Paraguay is 595, (0)741.
The country code and area code of El Gineina, Sudan is 249, (0)741.
There is no area code 795 in North America (USA, Canada, etc.).
All UK area codes begin with a 0. There is no area code 6010 in the UK, and there is no 06010 code either.
UK area code 020 is London.
There is no area code 20 in the UK
There is no 01134 code in the UK.
The country code and area code of Aberdeen, United Kingdom is 44, (0)1224.
Cambridge is in area code 01223, or +44 1223 from outside the UK.