The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Nec

Named as the FAA publishes it on its approvals.

Approved to make 2 classes of equipment. FAA spelling: NEC.

Equipment approvals technical standard order authorisations

1994-01-01TSO-C38D · VHF RADIO COMMUNICATIONS RECEIVING EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY... · * · instruments and avionics
1994-01-01TSO-C37D · VHF RADIO COMMUNICATIONS TRANSMITTING EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY... · * · instruments and avionics

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.