Had some time to kill while waiting for dinner to cook.

It looks like Wkipedia is wrong about code 872, the North American Number Planning Admin search page shows it as being in service to Chicago IL.

A further search request came back with conflicting ownership of the exchange and number block, one identified a carrier that owned it and a different search shows the block unassigned.

Last edited by mbhydro; 01/20/13 07:40 PM. Reason: update information