NPA 700 is a non-geographic code. This number space is defined separately by each long distance provider. In theory, long distance providers could offer services, likely pay services, which users could reach by dialing 1010-XXX-1-700-NXXXXXX.
The best know use of this area code is to verify that long distance services has been switched to a new carrier. If one dials 1-700-555-4141 one will generally hear a recorded message in the form “Welcome to ___ long distance services”. This works because the call is routed to 1-700-555-4141 as defined by ones current long distance carrier.
Phone System 