It might be. At least according to this post by Dan Nosowitz in Atlas Obscura
To help clarify: A spelling alphabet is “a set of words used to stand for the letters of an alphabet” when we’re asked by banks, catalog companies, and others to do things like spell out our names. According to Mr. Nosowitz, the International Civil Aviation Organization (ICAO) standard is “probably the best-known spelling alphabet: Alfa, Bravo, Charlie, Delta, Echo, and so on.” But he also points out there are others, often based on place names and given names.
But there’s a problem Mr. Nosowitz argues. The accepted spelling alphabets have pretty much “calcified” since the 1960’s. And he claims “here we are, in 2019, with an actual need for a new one.” However, as he makes clear in his article, creating new standards won’t be easy!