• Ixsh@lemmy.world
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    9 months ago

    The US number is not valid due to the following rules: “Using 0 or 1 as the first digit of an area code or central office code is invalid, as is a 9 as the middle digit of an area code; these are trunk prefixes or reserved for North American Numbering Plan expansion.“ *

    I’m sure you tried other numbers, but the number in the image fails due to that specific reason.

    *Wiki Link