[VoiceOps] Abandoned Ported Numbers

[Mike Johnston]

Say a subscriber ports a number to/from a different telco.  Then, after 
some time, the subscriber decides they no longer want the phone number 
(or phone service in general).  What should be done with this abandoned 
number?

Should the number immediately be returned to the donor telco?

Should the number be returned to the donor telco after aging?

Is it permissible for the recipient telco to add this number to their 
inventory and then re-assign the number to a different subscriber?