Here are the most common acronyms starting with A from the world of Telecom/Networking.
← Back to Full Telecom Acronyms| A/E | Architect/Engineer |
| AABS | Automated Alternate Billing Services (UT) |
| AAP | Affirmative Action Program |
| AAPS | Auxiliary Alarm Processing System |
| AAV | Alternative Access Vendor |
| ABC | Advanced Business Connection |
| ABEND | Abnormal End |
| ABH | Average Busy Hour |
| ABUBF | Accepted But Uninstalled Business Function (IS) |
| AC | Account Consultant |
| ACC | Access Industries |
| ACC | Advanced Computer Communications |
| ACCT | Account Code |
| ACS | Automated Costing System (FANASD) |
| AD | After Divestiture |
| ADAM | Advanced Digital Access Manager |
| ADIN | Authorization Code Database Index Number |
| ADM | Add/Drop Multiplexer |
| ADM | Administration Department |
| ADM | Administrative Recovery Group |
| ADN | Abbreviated Dialing Number |
| ADT | Audio Detect Tone |
| AFE | Authorization For Expenditure |
| AFT | Advanced Function Terminal |
| AFT | Automatic File Transfer |
| AIMS | Access Interface Management System |
| AL | Action Limits |
| ALITS | Automated Lab Integration Test System |
| ALLBUD | Network Trunk Building System |
| ALP | Alpha Wire |
| AMOS | Automated Maintenance Order System |
| AMOS | Automated Marketing Outbound System |
| ANI | Automatic Number Identification |
| ANM | Answer Message |
| ANNTYPE | Announcement Type |
| ANSCALLS | Answered Calls |
| AOI | Automatic Optical Inspection (MFG) |
| AOPS | Automated Order Packaging System |
| AP | Application Processor |
| APD | Access Product Development |
| APDU | Application Protocol Data Unit |
| APG | Application Recovery Group |
| APL | Access Private Line (Private Line Data Core Team) |
| APP | Access Processing Parameters |
| APS | Access Product Support Specialist |
| AR | Account Representative |
| ARA | Automated Rate Analysis (PM) |
| ARPA | Advanced Research Projects Agency |
| ARQ | Automatic Request for Repetition |
| ARS | Automated Records System |
| ARS | Automatic Route Selection |
| ARS | Automatic Routing Selector |
| ARSB | Automated Repair Service Bureau |
| ARU | Automatic Response Unit |
| AS | Administrative Services |
| ASA | American Statistical Association |
| ASA | Average Speed of Answer |
| ASC | Advanced Scientific Computer |
| ASC | Alarm Status Circuit |
| ASCII | American Standard Code for Information Interchange |
| ASD | Access Device |
| ASD | Access Drive |
| ASD | Auto Speed Detect |
| ASHRAE | American Society of Heating, Refrigerating, and Air Conditioning Engineers, Inc. |
| ASI | Advanced Services Implementation |
| ASI | Alarm Status Indicator |
| ASIS | American Society for Information Science |
| ASL | Available Space List |
| ASM | Association for Systems Management |
| ASMDR | Advanced Station Message Detail Reporting |
| ASP | Adjunct Service Point |
| ASP | Alarm Status Panel |
| ASP | Application Service Part |
| ASP | Auto Speed Port |
| ASPEN | Automated Save Performance Evaluation Network |
| ASPR | Armed Services Procurement Regulations |
| ASR | Access Service Record |
| ASR | Automatic Send-Receive |
| ASSERT | User Program Defensive Check Failure |
| ASSIST | Account Service and Support Information System Tool |
| AST | Activity Switch Timer (Northern Telecom) |
| AST | Advanced System Testing |
| ASU | Alarm Status Unit |
| AT | Acceptance Tasks |
| AT | Access Tandem |
| AT | Access Transport |
| ATA | American Teleport Association |
| ATAU | Automated Test and Alignment Unit |
| ATB | All Trunks Busy |
| ATC | Adaptive Transform Coding |
| ATC | Applied Technology Council |
| ATC | Automatic Technical Control |
| ATC | Time and Charge Services on 1+ Calls |
| ATD | Automated Telephone Directory (Suntel C3 computer subsystem) |
| ATDC | Attendant Console |
| ATDM | Asynchronous Time Division Multiplexing |
| ATE | Asynchronous Terminal Emulation |
| ATE | Automatic Testing Equipment (MFG) |
| ATET | Alliance Traffic Exchange Tape |
| ATM | Asynchronous Transfer Mode |
| ATM | Asynchronous Transfer Mode (NOCC) |
| ATM | Automated Teller Machine |
| ATM DXI | ATM Digital Exchange Interface |
| ATME #2 | Automatic Transmission Measuring and Signaling Testing Equipment No. 2 |
| ATMR | ATM Ring |
| ATOMS | Automated Translations Order Monitoring System |
| ATP | All Tests Pass |
| ATS | Administrative Terminal System |
| ATS | Automated Terminal System |
| ATSU | Association of Time-Sharing Users |
| ATSM | Area Technical Support Manager |
| ATT | Automatic Trunk Testing |
| ATT-IS | AT&T Information Systems |
| AUL | Automatic Line |
| AUM | Auxiliary Unit Maintenance |
| AUTH | Authorization |
| AUTHCODE | Authorization Code |
| AUTHM | Authorization Maintenance |
| AUTODIN | Automatic Digital Network |
| AUTOGUY | Automated LAN Execution System |
| AUTOVON | Automatic Voice Network |
| AUUA | America’s Univac Users Association |
| AV/D | Alternate Voice/Data |
| AWG | American Wire Gauge |
| AWO | Automated Work Order |
| AWOS | Automated Work Order Subsystem |
| AWT | Actual Work Time |
| AWT | Average Work Time |
