 However, by the mid-1990s, 913 was close to exhaustion due to the rapid growth of the Kansas City area, as well as the proliferation of cell phones and pagers.The latter was especially pronounced in the eastern part of the 913 territory (the Kansas City suburbs, Topeka, and Lawrence), home to the bulk of the numbering plan's available numbers.Late in 1996, the Kansas Corporation Commission, which oversees telecommunications in the state, requested relief from the North American Numbering Plan Administration (NANPA) for the exchanges of area code 913.