Mobile phones were invented as early as the 1940s when engineers working at AT&T developed cells for mobile phone base stations. The very first mobile phones were not really mobile phones at all. … Motorola, on 3 April 1973 were first company to mass produce the the first handheld mobile phone.Mobile phones started to become popular in Bangladesh in the late ’90s. The first phones were way oversized compared to any phone of today. There was an antenna on top of the phone, and they used to be quite troublesome to carry because of their weight. These were technically called “brick phones.” There was just one thing you could do with a phone, make a call. But these phones were quite pricey, and it was quite prestigious to own such a simple mobile phone at that time. These phones are not available anymore on the market.