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4810-98 Communications
4812-01 Paging & Signaling Service Common Carrier
4812-02 Paging & Signaling Service Private Systems
4812-04 Radiotelephone Communications
4812-05 Mobile Telephone Service
4812-06 Beepers
4812-07 Cellular Telephones (Services)
4812-08 Marine Radio Telephone Service
4813-01 Data Communication Service
4813-02 Telephone Communications Services
4813-04 Telephone Companies
4813-06 Long Distance Telephone Service
4813-07 Voice Messaging Equipment
4813-08 Telephone Equipment & Systems Renting
4822-01 Facsimile Transmission Service
4822-02 Telegraph Service
4822-03 Electronic Mail Service
4822-04 Teletypewriter Communication Service
4830-98 Radio and Television Broadcasting
4832-01 Radio Stations & Broadcasting Companies
4832-02 Government Radio Broadcasting Stations
4833-01 Television Station & Broadcasting Co
4833-02 Television Stations & Broadcasting Co Cnslnts
4841-01 Television Cable & Catv
4841-02 Antennas Television Community Systems
4841-03 Satellite Comms Services-Common Carrier
4841-04 Television Cable Catv Equip & Supls
4841-05 Television Syst-Closed Circuit Tlcstng
4899-01 Communications Services Common Carriers
4899-99 Communications Services Nec