This is more a shower thought that has started to eat at me. Even with the addition of area codes and country codes, with all the businesses and people with multiple phone lines, how are we not out of available phone numbers? Is this something to even be concerned about or is there a process to retire and recycle unused numbers?
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Cities have run out in the past – London (the real one) used to have a dialling code of 01 which was then split into 071 and 081 and later to 020 (which was implemented as 020-7 and 020-8) which increases the domain space each time. 020-3 was introduced a few years later, and now 020-4 has appeared on the scene, all using some of the newly created space
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