The A607 is an A road in England that starts in Leicester[1] and heads northeastwards through Leicestershire and the town of Grantham, Lincolnshire, terminating at Bracebridge Heath,[2] a village on the outskirts of Lincoln. It is a primary route from Thurmaston to the A1 junction at Grantham.
https://en.wikipedia.org/wiki/A607_road
If "your" bit is the primary route bit, it's the responsibility of Highways England. AFAIK, they sometimes do their own maintenance, sometimes the local authority act as agents.