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How do phones find the city of a phone number? (lemmy.blahaj.zone)
submitted 15 hours ago by to c/asklemmy@lemmy.world
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Crossposted from https://lemmy.blahaj.zone/post/48779421

I'm writing a program that can find info about a phone number. One problem appears to be that Google's phone number library doesn't provide enough info. For instance, take this number: +1 (613) 745-1576. My iPhone correctly says "Ottawa, Ontario, Canada", while Google's library doesn't return the city? How does my iPhone pick this up but not Google's own library? Is this provided by cell carriers? Is it something with the 745 block? If so, where can I find this info?

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[–] 2 points 10 hours ago

Fun fact: the three-digit set after the area code is called the "exchnage" code and the final, four-digit set is called the "transfer" code or subscriber code.

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