phone fun, was GeoIP database issues and the real world consequences

Leo Bicknell bicknell at
Mon Apr 18 14:06:52 UTC 2016

In a message written on Fri, Apr 15, 2016 at 09:49:37AM +0100, tim at wrote:
> Out of curiosity, does anyone have a good pointer to the history of how / why US mobile ended up in the same numbering plan as fixed-line?

The other answers address the history here better than I ever good, but
I wanted to point out one example I hadn't seen mentioned.

917 was originally a mobile only area code overlay in New York City.
For reasons that are unclear to me, after that experiement it was
decided that the US would never do that again.

Leo Bicknell - bicknell at
PGP keys at
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