A dial-around is
simply a method to dial a long distance number using a provider other
than your subscribed switched long distance service. In effect, you
dial "around" them, rather than "through" them.
Examples of
dial around 's are: 10-10,1010220,10-10-220,1010321,10-10-321,
1010345,10-10-345,1010629,10-10-629,10-10-636,
1010811,10-10-811,
101-6868,10-321