The 414-921 exchange is serviced by the following companies within the MILWAUKZN1 ratecenter.
"GLOBAL CROSSING TELEMANAGEMENT, INC.-WI"
Call are routed trough OCN 4087 and CLLI - MILWWIDKXMD (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in MILWAUKEE.
Who's number is 414-921 Numbers?