Here are the most common telecom acronyms starting with L from the world of computer networking.
← Back to Full Telecom Acronyms| L | Radiance (or spectral radiance) |
| L&T | Line and Trunk |
| L5 | Long haul coaxial carrier system |
| LA | Listed Address |
| LABS | LATA-wide Business Services |
| LAD | LATA Architecture Database |
| LADC | Local Area Data Channel |
| LADS | LATA Architecture Database System |
| LADS | Local Area Data Service |
| LADT | Local Area Data Transport |
| LALR | Lookahead LR (Left-to-Right, Rightmost) |
| LAMA | Local Automatic Message Accounting |
| LAN | Local Area Network |
| LAP | Link Access Procedure |
| LAPB | Link Access Protocol B (or Link Access Procedure for the B channel) |
| LAPD | Link Access Protocol D (or Link Access Procedure for the D channel) |
| LARC | Livermore Automatic Research Computer |
| LASS | Local Area Signaling Service |
| LATA | Local Access and Transport Area (regional calling area) |
| LaTS | Langley Research Center Telecommunications System |
| LAW | Legal Department |
| LBA | Linear Bounded Automaton |
| L-band | 390 MHz to 1550 MHz |
| LBO | Line Build-Out network |
| LBR | Large Business Remote |
| LBS | Load Balance System |
| LC | Last Completed |
| LC | Loop Closure |
| L-carrier | A family of coaxial cable transmission systems |
| LCB | Line Control Block |
| LCC | Line Class Code |
| LCC | Link Control Card (Northern Telecom Inc.) |
| LCD | Liquid Crystal Display |
| LCDM | Logarithmic Companded Delta Modulation |
| LCDR | Local Call Detail Recording |
| LCE | Line Concentrating Equipment |
| LCGN | Logical Channel Group Number |
| LC-I | Line Concentrator-Identifier system |
| LCM | Line Concentrating Module |
| LCN | Logical Channel Number |
| LCN | Logical Channel Number |
| LCP | Life Cycle Plan |
| LCP | Linked Call Processing |
| LCR | Least Cost Routing |
| LCR | Line Concentration Ratio |
| LCR | Least Cost Routing |
| LDA | Local Distribution Area |
| LDIS | LEC Data Integration System |
| LDIT | Local Digit Interpreter Table |
| LDM | Limited Distance Modem |
| LDN | Listed Directory Number |
| LDN | Local Distribution Network |
| LDS | Labor Distribution (UTI) |
| LDS | Local Digital Switch(ing) |
| LDS | Logical Data Store (IS) |
| LDSU | Local Digital Service Unit |
| LDSU1 | Local Digital Service Unit – Model 1 |
| LDSU2 | Local Digital Service Unit – Model 2 |
| LDV | Local Distribution Vendor |
| LEAS | LATA Equal Access System |
| LEC | Local Exchange Carrier |
| LED | Light Emitting Diode |
| LEN | Line Equipment Number |
| LF | Line Feed |
| LF | Low Frequency (below 3 MHz) |
| LFU | Least Frequently Used |
| LG | Location Group |
| LG | Logic Ground |
| LGC | Line Group Controller |
| LGE | Line Group Equipment |
| LI | Line Interface |
| LIFO | Last In-First Out |
| LIM | Line Interface Module |
| LINC | Laboratory Instrument Computer |
| LISP | List Processing |
| LIT | Line Insulation Test |
| LIU | Link Interface Unit |
| LLC | Line Load Control |
| LLC | Logical Line Control |
| LLC | Lower Level Compatibility |
| LLF | Line Link Frame |
| LLL | Low Level Logic |
| LLN | Line Link Network |
| LM | Line Module |
| LMC | LAN Maintenance (or Management) Center |
| LMC | Line Module Controller |
| LME | Line Module Equipment |
| LMF | Language Media Format |
| LMI | Local Management Interface |
| LMOS | Loop Maintenance Operations System |
| LMU | Line Monitoring Unit |
| LMU | Line Monitoring Unit |
| LNA | Launch Numerical Aperture |
| LNA | Low Noise Amplifier |
| LNI | Line Interface (cabinet or frame) |
| LNNMS | LattisNet Network Management System |
| LO | Line Occupancy |
| LOA | Leave of Absence (HR) |
| LOB | Line of Business |
| Locap | Low-capacity, low-loss paired cable |
| LOD | Line Hunt Overflow to a Directory number |
| LOE | Level of Effort |
| LOE | Level of Effort |
| LOGUTIL | Output reporting system |
| LOI | Letter Of Intent |
| LOR | Line Hunt Overflow to a Route |
| LOS | Loss of Signal |
| LP | Linear Programming |
| LP | Local Processor |
| LP mode | Linearly Polarized mode |
| LPC | Linear Predictive Coding |
| LPCDF | Low Profile Conventional Distributing Frame |
| LPN | Local Packet Network |
| LQA | Link Quality Analysis |
| LRC | Local Record Cache |
| LRC | Longitudinal Redundancy Check(ing) |
| LRU | Least Recently Used |
| LRU | Line Replacement Unit |
| LS | Least Squares |
| LSA | Labor Surplus Area |
| LSB | Least significant bit (or byte) |
| LSBRS | Large Scale Business Recovery Services |
| LSC | Line Screening Code |
| LSD | Line Sharing Device |
| LSDU | Low Speed Data Unit |
| LSF | Line Switch Frame |
| LSI | Large Scale Integration (ed) (circuit) |
| LSI | Loop Start Incoming |
| LSO | Loop Start Outgoing |
| LSR | Loop Signaling Repeater |
| LSSGR | Local Switching System General Requirements |
| LSTTL | Low-Power Schottky Transistor-Transistor Logic |
| LSU | Lone Signal Unit |
| LT | Logic Theorist |
| LTC | Line Test Center |
| LTC | Line Trunk Controller |
| LTC | Local Test Cabinet |
| LTD | Local Telephone Division (UTI) |
| LTD | Local Test Desk |
| LTD | Long Term Disability (HR) |
| LTE | Lightwave Terminating Equipment |
| LTE | Line Terminating Equipment |
| LTF | Lightwave Terminating Frame (MX3C/FT3C) |
| LTMA | Lightwave Terminating Multiplex Assembly |
| LTOP | Lease to Ownership Plan |
| LTP | Line Test Position |
| LTP | Line Trunk Peripheral |
| LTP | Logical Test Port |
| LTPU | Logical Test Port Unit |
| LTRS | Letters shift |
| LTS | Loop Test Subsystem (or Loop Testing System) |
| LTTS | Line and Trunk Test Station |
| LTU | Line Terminating Unit |
| LTU | Line Test Unit |
| LTWS | Line and Trunk Work Station |
| LU | Line Unit |
| LU1 | Line Unit 1 |
| LU2 | Line Unit 2 |
| LU3 | Line Unit 3 |
| LWOP | Lease With Option To Purchase |
| LXN | Local Exchange Network |
