NECA (National Exchange Carrier Association)

A not-for-profit organization of U.S. incumbent

local exchange carriers (ILECs), NECA administers the FCC’s access charge plan that determines the fees that interexchange carriers (IXCs) pay ILECs to complete calls. NECA also administers the Telecommunications Relay Service (TRS) fund that supports telecommunications services for individuals who are speech and/or hearing impaired. The subsidiary Universal Service Administrative Company (USAC) administers programs that provide support for ILEC companies in high-cost areas, assistance for low income subscribers, discounts for telecommunications service to schools and libraries, and discounts to rural health care providers. See also FCC, ILEC, IXC, TRS, and USAC.

• Table D-1: Digital Hierarchy: T-Carrier, E-Carrier, and J-Carrier
• Table E-1: EBCDIC Code — 0–255 Decimal Notation
• Table E-2: EBCDIC Code — 00–FF Hexadecimal Notation
• Table E-3: European Digital Hierarchy: E-Carrier
• Table E-4: Frequency Spectrum: Band Designations, Nominal Frequency Ranges, Nominal
• Table E-4: Frequency Spectrum: Band Designations, Nominal Frequency Ranges, Nominal
• Table E-5: Endianess
• Table G-1: G-Series Recommendations
• Table H-1: H.320 Related Standards Recommendations
• Table H-2: SDTV Scanning Formats
• Table H-3: Notation Comparison
• Table H-4: Selected ITU-T H-Series Recommendations
• Table I-1: Frame Relay Implementation Agreements
• Table I-2: Index of Refraction (IOR)
• Table I-3: IPv4 Address Classes
• Table I-4: Selected ITU-T I-Series Recommendations
• Table I-4: Selected ITU-T I-Series Recommendations (continued)
• Table I-5: ITU-T Series Recommendations
• Table J-1: Japanese Digital Hierarchy: J-carrier
• Table L-1: Longitudinal Redundancy Check (LRC)
• Table M-1: International Morse Code
• Table O-1: OSI Reference Model Layers
• Table O-2: G.709 Line Rates and Corresponding SDH/SONET Line Rates
• Table P-1: Evolution of PBX technology
• Table P-2: Military and Aviation Phonetic Alphabet