numbering plan administration (NPA)

See NPA.

• angle of incidence
• ANI (Automatic Number Identification)
• annotation
• annotation
• anonymous call rejection (ACR)
• anonymous call rejection (ACR)
• ANSI
• ANSI (American National Standards Institute)
• ANSI/EIA/TIA-568
• ANSI/ICEA S-101-699
• ANSI/ICEA S-80-576
• ANSI/ICEA S-91-661
• ANSI NFPA 70
• answering machine
• antenna
• Antheil, George (1900–1959)
• anycast
• anycast address
• AODI (Always On/Dynamic ISDN)
• AP
• APC (Angled Physical Contact)
• APD (Avalanche PhotoDiode)
• APD (Avalanche PhotoDiode)
• API (Application Program Interface, aka Application Programming Interface)
• API (Application Program Interface, aka Application Programming Interface)