This may be how it is in the States, but in the UK all mobiles phones start with 07 (other area residential codes start 01, 02 etc). I always found it weird th

This may be how it is in the States, but in the UK all mobiles phones start with 07 (other area residential codes start 01, 02 etc). I always found it weird that the US numbering system assumes that mobile phones are static. Must be some weird technical debt buried somewhere.