Calling Abbreviations and Acronyms

  1. NUA
    Network User Addresses
  2. NUAS
    Network User Addresses
  3. NWCO
    Nuisance Wildlife Control Officer
  4. NYC4PA
    New York Center for Photographic Arts
  5. OA
    Outgoing Access
  6. OBT
    Optimal Barrel Time
  7. OC
    Operator Console
  8. OCB
    Outgoing Calls Barred
  9. OCC
    Other Common Carriers
  10. OCCS
    Other Common Carriers
  11. OCNS
    Operating Company Numbers
  12. OCS
    Originating-Call Scneening
  13. OD
    Operator Dialed
  14. OI
    Or Immediate
  15. OK
    Output Key
  16. ONS
    One Number Service
  17. OOD
    Out-Of-Dialog
  18. OOD
    Out of Dialog
  19. OPM
    Option Pricing Model
  20. OPS2
    Open Publication Structure 2

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