Benton as in near the Freeman hospital?
That is the exchange NEB, and has 48 cabinets and yours is the 2nd smallest one I think - not good news.
NE27 0BX, NE27 0BW, NE27 0BU, NE27 0BE seem to be the four postcodes covered by the cabinet.
The cabinet may be done at a later phase, but the size makes it unlikely to get the normal sized cabinets, may be a case of waiting for spare money for FTTP or the Fibre to the Remote Node (i.e. small waterproof box that can be put in hole in pavement) or on pole and provide VDSL2. So probably 2 years or maybe more, hopefully council will prove prediction wrong.