I am working on a hydrant renumbering project. We have over 1,500 hydrants and the land base is filled up sporadically as new subdivisions are built. However this cause our numbers to be all over the place. We service a number of towns within the county. We have decided that since we are still small enough we will be able to renumber the hydrants by town. So we would start with a letter in front of the hydrant number corresponding to the town the hydrant is in and starting from 1 and numbering up. I clipped out the hydrants based on town but was wondering if anyone had any suggestions on the best tools to use in ArcGIS 10.5 to complete the process. I would like the hydrants to be numbered somewhat uniformly geographically.