• tetris11@lemmy.ml
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    5 hours ago

    If you add up all the digits, it sums up to 46, which sums up to 10, which sums up 1, and that’s exactly how many shits you should give about this

    • whaleross@lemmy.world
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      5 hours ago

      While applying this technique, the caller may well hang up, so the quandary is solved regardless.

      • tetris11@lemmy.ml
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        4 hours ago

        See, this is a type of proof that many mathematicians overlook preferring to opt instead for Proof by Contradiction or Proof by Induction. If they just sit and applied Proof by Waiting, they could solve their theorems with 100x less the effort.

        This morning I proved Pythagoras’s Theorem by employing Proof by Waiting. I waited exactly 5 seconds, and in that time found that it had been proved by a simple online search. Mathemeticians are idiots.

  • slazer2au@lemmy.world
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    5 hours ago

    Likely a fake one.

    You don’t have to have a valid caller id when calling someone. Telcos track call data with other fields.

  • guy_threepwood@lemmy.world
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    6 hours ago

    If you still have a land line you can dial locally without even an area code. This worked in most countries. Some mobile phone networks kept this tradition although in a weirder way: you could dial locally when physically located in those areas, and your phone would display the area code you were in on the its standby screen. Which worked as long as you weren’t on a border between cells and it picked the wrong one.

    Over time this went away.

    I don’t think this is what you have experienced, but it was a nice thing that blurred the lines between land line and mobile phones for a little while, and I think it’s interesting.

      • argh_another_username@lemmy.ca
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        4 hours ago

        Brazil has a stupid numbering system for phones, now. Instead of having three digits area codes and several area codes for highly populated areas, they have two digits area codes and nine digits phone numbers. (But it’s not the case here, here is a scam caller)

        • Onomatopoeia@lemmy.cafe
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          1 hour ago

          But, why?

          Seriously, if you understand how this came to be, I’m curious. I’d think they implemented land lines using extant hardware systems of the era, and the number structure surely was well established by that point?

          Now I’m off to go down a rabbit hole of telecom implementations worldwide.

          • argh_another_username@lemmy.ca
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            41 minutes ago

            I don’t know exactly why. A quick search told me that “because the people wanted that way”. In Brazil, we don’t use the area code for local calls, so, if they created a new area code for the same city (like we have in Montreal, the 514 and the 438), it would cause confusion.

  • AstralPath@lemmy.ca
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    4 hours ago

    In Peru (and some islands in the Pacific as well IIRC), some regions have nine digit numbering plans. This may have been a call from one of those areas. More likely its spam.

  • Kalvin@lemmy.world
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    5 hours ago

    Honestly, I don’t know what kind of number that is either. I usually get calls with country codes that make it easier to guess. How about searching for the number in an identification service to give you a clue as to who that is exactly?