who built this jet?
Sud Aviation and the British Aircraft Corporation (BAC)
Concorde
Concorde was jointly developed and manufactured by Sud Aviation (later Aérospatiale) and the British Aircraft Corporation (BAC) under an Anglo-French treaty. 
when do the white nose operators come out UNANSWERABLE what is the speed of this jet? Mach 2.04 is it faster than the speed of an ordinary airplane? It had a maximum speed over twice the speed of sound
wiki:1578912
Concorde [SEP] Introduction
It was this extreme cost that became the main factor in the production run being much smaller than anticipated. Later, another factor, which affected the viability of all supersonic transport programmes, was that supersonic flight could be used only on ocean-crossing routes, to prevent sonic boom disturbance over populated areas. With only seven airframes each being operated by the British and French, the per-unit cost was impossible to recoup, so the French and British governments absorbed the development costs. British Airways and Air France were able to operate Concorde at a profit, in spite of very high maintenance costs, because the aircraft was able to sustain a high ticket price.