RTI Consultants Inc (913) 649-6565
Despite a relatively small population, Kansas was scheduled to receive two area codes under the original North American Numbering Plan proposal from the Bell Telephone Company in 1946. Originally, area codes would follow sequentially based on geography, and under the 1946 plan, Kansas would receive area codes 617 and 618.
In October 1947, the final plan was adopted, and Kansas still had its two area codes, although the numbers had been radically altered from the original plan. The southern half of the state (Dodge City, Emporia, Garden City, Wichita) would receive 316, while the northern half (Kansas City, Shawnee, Overland Park) would receive 913. All long-distance calls using area codes would not be implemented until late in 1951.
Kansas City's explosion necessitates a new code
Johnson County - Population 544,179