Template talk:Area code list

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Why is Telmex listed in the "Former" category? What were they doing with a NANP assignment? Any documentation? Ellenor2000 (talk) 22:49, 31 January 2019 (UTC)[reply]

Until about 1990, 903 and 706 were parts of Baja California, and 905 Mexico City. See List of North American Numbering Plan area codes. deisenbe (talk) 00:48, 1 February 2019 (UTC)[reply]