\\ More than 3500 Telecom abbreviations maintained by Ioan (Nini) Indreias // 1 A B C D E F G H I J K L M N O P Q R S T U V W X Y All words N-AMPS Narrowband AMPS NA-TDMA North American Time Division Multiple Access NA Numerical Aperture NAA Next Available Agent NAA Number Assignment Administration NABER National Association of Business and Educational Radio NAC National Access Code NAC Network Administration Center NAC Null Attachment Concentrator (FDDI) NAC Number Assignment Center NACK Negative ACKnowledgement NADH North American Digital Hierarchy NAK Negative Acknowledgement (BISYNC, DDCMP) NANC North American Numbering Council NANP North American Number Plan NANP North American Numbering Plan NAP Network Access Point NAP Network Access Point (Internet) NAPLS North American Presentation Level protocol Syntax NAR Network Access Restriction NARUC National Association of Regulatory Utilities Commissions NAS Netowrk Access Server NAS Network Application Support NAS Network Attached Storage NASA National Aeronautics and Space Administration NASDAQ National Association of Securities Dealers Automated Quotations NAT Network Address Translation NAT Network Attached Storage NATA North American Telecommunications Association NAU Network Access/Addressable Unit NAU Network Accessible Unit (SNA) NB Normal Burst NBP Name Binding Protocol (NetWare) NBS National Bureau of Standards (old) NC Network Channel NC Number of unallocated channels at node NCA Non-Call Associated NCC Network Color Code NCC Network Colour Code (GSM - UMTS) NCC Network Communications Controller NCCF Network Communication Control Facility NCI Network Channel Interface NCIA Native Client Interface Architecture (Cisco) NCP NetWare Core Protocol (NetWare) NCP Network Control Point/Program NCP Network Control Point/Protocol NCP Network Control Program (SNA) NCS Network Computing System NCSA National Center for Supercomputing Applications NCTA National Cable Television Association NCTE Network Channel Terminating Equipment NCTE Network Channel Termination Equipment NDC National Destination Code NDF New Data Flag NDIS Network Device Interface Specification NDIS Network Driver Interface Specifications (Microsoft & 3Com) NDS Netware Directory Services NE Network Element NEARnet New England Academic and Research Network NEAT Network Expert Advisory Tool (Harris Corp.) NECA National Exchange Carriers Association NENA National Emergency Number Association NET Norme Europeenne de Telecommunications NETID Network Identifier NEXT Near End Cross Talk NFAS Non-associated Facility Signaling NFAS Non-Facility Associated Signaling NFAS NonFacility Associated Signaling NFS Network File System NFS Network File System (Sun) NGDLC Next Generation Digital Loop Carrier NGN Next Generation Network NGW Network Gateway NI National ISDN NI Network Interconnect NI Network Interface NIC Network Information Center NIC Network Interface Card (LAN) NIC Network Interface Controller NICE Network Information and Control Exchange NID Network Interface Device NII National Information Infrastructure NIST National Institute of Standards and Technology NIU Network Interface Unit (T-carrier) NIUF N.A. ISDN User Forum NIUF North American ISDN Users Forum NL Network Layer NL Number of unallocated channels on link NLDM Network Logical Data Manager NLM NetWare Loadable Module NLOS Near Line of Sight NLPID Network Layer Protocol Identifier NLSP NetWare Link Services Protocol NM Network Management NM Network Module NM Node Manager workstation NMA Network Management and Administration NMA Network Monitoring and Analysis NMC Network Management Center NMCC Network Management Control Center NMI Non-Maskable Interrupt NML Network Management Layer NMP Network Management Processor (Cisco) NMP Network Management Protocol NMR Network Measurement Report (GSM - UMTS) NMS Network Management Station (OAM) NMS Network Management System NMT Nordic Mobile Telephone system NMVT Network Management Vector Transport protocol NN Network Node NNA Network Node Address NNI Network Node Interface (ATM) NNI Network-to-Network Interface (FR) NNTP Network News Transfer Protocol NNTP Network News Transfer/Transport Protocol NOC Network Operations Center NOCC Network Operations Control Center NOP No Operation NOS Network Operating System NOTE Network Office Terminating Equipment NPA Numbering Plan Area NPAC Number Portability and Administrative Center NPAS Network Portability Access Service NPD Non-Payment Disconnect NPDA Network Problem Determination Application NPDU Network Layer Protocol Data Unit NPDU Network Protocol Data Unit NPI Numbering Plan Identification NPRM Notice of Proposed RuleMaking NPRN Network Performance Report Message NPSI NCP Packet Switching Interface (SNA) NRC Non Recurring Charge NREN National Research & Education Network NREN National Research and Education Network NRF New Regulatory Framework NRIC National Reliability and Interoperatability Council NRS Number Referral Service NRZ Non-Return to Zero NRZ NonReturn to Zero NRZI Non-Return to Zero Inverted NRZI NonReturn to Zero Inverted NS/DOS Networking Services/DOS NS Network Service NSA National Security Agency NSA Non-Service Affecting NSAP Network Service Access Point (ISO) NSC Network Service Center NSF National Science Foundation NSF Network Specific Facilities NSFNET National Science Foundation NETwork NSI Network Service Interface NSP National Signaling Point NSP Network Service(s) Protocol NSP Network Services Protocol NSS Network Switching Subsystem NSVC Network Service Virtual Circuit NT Network Terminal NT Network Termination (ISDN) NT New Technology (Windows) NT Node Type NTAS New Technology Advanced Server (Microsoft) NTE Network Terminating Equipment NTG Network interface Trunk Group NTN Network Terminal Number NTN New Telephone Number NTO Network Terminal Option NTSC National Television System Committee NTT Nippon Telephone and Telegraph NTT Numbered Test Trunk NTW Network Terminating Wire NUI Network User Identification (X.25) NUI Network User Identifier NVE Network-Visible Entities NVOD Near Video On Demand NVRAM Nonvolatile Random Access Memory (RAM) NVT Network Validation Test NWP National White Pages NWPD National White Page Directory NXX telephone prefix (npa) NXX-xxxx NYNEX New York, New England eXchange SMBZ - SaMBoZaur - test for propagation of define: