I'm thinking of porting my landline number to VOIP service. However, I'm afraid that during the switchover someone may screw up and cause my beloved phone number to be recycled and given to someone else.
So, is there a way to purchase or own a local number outright, just like one can register (and own) a domain name? So that no matter how phone companies screw up, the number cannot be "lost" or reassigned to someone else?