| Acronym | Sense | Language | Topics |
|---|---|---|---|
| 2FA | Two-Factor Authentication | In English | → Software |
| 3G | Third Generation | In English | |
| 3GPP | 3G Partnership Project | In English | |
| @LIS | Alliance for the Information Society | In English | → Computer science |
| A2DP | Advanced Audio Distribution Profile | In English | |
| A2F | Alternat Bi-Fréquence | In French | → Traumatology |
| AA | Abbreviated Alert | In English | |
| AACS | Attitude and Antenna Control System | In English | → Astronautics |
| AAFG | Acetic Acid Food Grade | In English | |
| AAIM | Association for Applied Interactive Multimedia | In English | → Associations → Computer science |
| AAL | ATM (Asynchronous Transfer Mode) Adaptation Layer | In English | |
| AAMCT | Associazione Assistenti Montatori Cinematografici e Televisivi | In Italian | → Associations → Cinema, movies → Italia |
| ABC | American Broadcasting Company (http://abc.go.com) | In English | → Entertainment → United States |
| ABECORTEL | Associação Brasileira das Empresas de Engenharia de Telecomunicações | In Portuguese | → Associations → Brazil |
| ABM | Asynchronous Balanced Mode | In English | |
| ACCE | Association des Conseils en Communication Électronique | In French | → Associations → Consulting |
| ACCES | Association des Chaînes du Câble Et du Satellite (www.acces.tv) | In French | → Associations |
| ACCS | Adaptive Communication Control Subsystem | In English | |
| ACD | Automatic Call Distributor | In English | |
| ACF/NCP | Advanced Communications Function/Network Control Program | In English | → Networks, communication |
| ACIF | Australian Communication Industry Forum | In English | → Organizations and associations → Australia |
| ACM | Address Complete Message | In English | |
| ACPR | Adjacent Channel Power Ratio | In English | |
| ACS | Army Communication System | In English | → Military affairs |
| ACS | Auxiliary Communications Services | In English | |
| ACT | Audio Center Transmission | In English | |
| ACTS | Advanced Communications Technology Satellite | In English | → Astronautics |
| ACTS | Advanced Communication Technology Satellite | In English | → Astronautics |
| ADAE | Agence de Développement de l'Administration Électronique | In French | → Public administration, government → Computer science |
| ADCCP | Advanced Data Communications Control Protocol | In English | |
| ADCCP | Advanced Data Communication Control Procedures | In English | → Networks, communication |
| ADIASC | Association pour le Développement d'un Internet Associatif Solidaire et Citoyen | In French | → Associations → Internet |
| ADM | Add-Drop Multiplexer | In English | → Networks, communication |
| ADM | Asynchronous Disconnect Mode | In English | |
| AdME | Advertising-drive Mobile Entertainment | In English | → 659 |
| ADPCM | Adaptive Differential Pulse Code Modulation | In English | → Algorithms → Computer science |
| ADS | Accès Distant Sécurisé | In English | → Networks, communication |
| ADSIB | Agencia para el Desarrollo de la Sociedad de la Información en Bolivia | In Spanish | → Computer science |
| ADSL | Asymetric Digital Subscriber Line | In English | → Networks, communication |
| ADSL-G | Association des surfeurs lésés de Guyane | In French | → Associations → Networks, communication |
| ADSP | AppleTalk Data Stream Protocol | In English | → Computer science |
| AERA | Amikaro de Esperanto en Radio | In Esperanto | → Organizations and associations → Artificial languages (linguistics) |
| AF | Audio Frequency | In English | |
| AF | Assured Forwarding | In English | → Networks, communication |
| AFA | Association des Fournisseurs d'Accès | In French | → Internet → Associations |
| AFDESI | Association Française des Développeurs et Éditeurs de Services TV Interactifs (www.afdesi.org) | In French | → Associations → Entertainment → France |
| AFDESI | Association Française des Développeurs, Éditeurs et Fournisseurs de Services en télévision Interactive (www.afdesi.org) | In French | → Associations → Software → Networks, communication → France |
| AFIM | Association Française de l'Internet Mobile | In French | → Associations → Internet → France |
| AFNIC | Association Française pour le Nommage Internet en Coopération (www.afnic.fr) | In French | → Associations → Internet → France |
| AFOM | Association Française des Opérateurs Mobiles (www.afom.fr) | In French | → Associations → France |
| AFORM | Association Française des Opérateurs de Réseaux Multiservices | In French | → Associations → Networks, communication → France |
| AFORS | Association Française des Opérateurs de Réseaux et Services de Télécommunications (www.aforstelecom.fr) | In French | → Associations → Networks, communication → France |
| AFP | Appareil de Faible Portée = SRD | Short Range Device | In English |
In French | |
| AFRTS | American Forces Radio and Television Service | In English | → Military affairs |
| AFSATCOM | Air Force Satellite Communication(s) | In English | → 358 → Astronautics → United States |
| AFSCS | Air Force Satellite Communications System | In English | → 358 → Astronautics → United States |
| AFT | Agence Ferroviaire de Télécommunications | In French | → Organizations and associations → Rail transport engineering → Rail transport |
| AFUTT | Association Française des Utilisateurs des Télécommunications (www.afutt.org) | In French | → Associations → Networks, communication → France |
| AFUTT | Association Française des Utilisateurs du Téléphone et des Télécommunications (www.afutt.org) | In French | → Associations |
| AGCH | Access Grant Channel | In English | |
| AIDAC | Associazione Dialoghisti Adattatori Cine-televisivi (www.aidac.it) | In Italian | → Associations → Cinema, movies → Italia |
| AIFF | Audio Interchange File Format | In English | → Files → Computer-based techniques |
| AIM | AOL Instant Messenger | In English | |
| AIR | Associazione Italiana Radioascolto | In Italian | → Associations → Italia |
| AIS | Alarm Indication Signal | In English | |
| AIS-L | Alarm indication signal Line | In English | |
| AIS-P | Alarm Indication Signal Path | In English | |
| ALAWN | Authentication and Legal Access in WiFi Networks | In English | → Computer science |
| ALP | Access Linux Platform | In English | → Networks, communication |
| AMC | Associazione Montaggio Cinematografico e Televisivo | In Italian | → Associations → Cinema, movies |
| AMDF | Automated Main Distribution Frame | In English | → Computer science |
| AMI | Alternate Mark Invert | In English | |
| AMP | Accelerated Mobile Pages | In English | → Internet |
| AMPS | Advances Mobile Phone Service | In English | |
| AMPS | Advanced Mobile Phone Service | In English | |
| AMPS | Advanced Mobile Phone System | In English | |
| AMRC | Accès Multiple par Répartition en Code = CDMA | Code Division Multiple Access | In English |
In French | |
| AMS | Autocommutateur Téléphonique Multiservices | In French | |
| ANFR | Agence Nationale des FRéquences (www.anfr.fr) | In French | → Central administration → France |
| ANIS | Association Nord Internet Solidaire | In French | → Internet → Associations |
| ANIS | Asociaţia Naţională a Industriei de Software şi Servicii din România | In Romanian | → Associations → Software → Romania |
| ANT | ADSL Network Termination | In English | → Networks, communication |
| AnTel | Annales des Télécommunications | In French | → Serial publications, periodicals |
| APAN | Asia-Pacific Advanced Network Consortium | In English | → Computer science |
| APCC | American Public Communications Council (www.apcc.net) | In English | → Organizations and associations → United States |
| API-PL | Association pour la Promotion d'Internet pour les Professions Libérales | In French | → Associations → Internet |
| APIC | Asociaţia pentru Tehnologia Informaţiei şi Comunicaţii din România | In Romanian | → Associations → Computer science → Romania |
| APICS | Analyse et Problèmes Inverses pour le Contrôle et le Signal | In French | → Mathematics → Electronics |
| APN | Access Point Name | In English | |
| APRS | Automatic Position Reporting System | In English | |
| APT | Associazione Produttori Televisivi (www.apt.it) | In Italian | → Associations → Cinema, movies → Italia |
| APTE | Association Poste Télécom Espéranto | In French | → Associations → Postal services → Artificial languages (linguistics) → France |
| APTEN | Association pour la Promotion des Transactions Électroniques en Normandie | In French | → Associations → Trade |
| APTES | Association du Pôle Transactions Électroniques Sécurisées | In French | → Associations → Networks, communication |
| APTI | Association pour les Professionnels de la Télévision sur Internet | In French | → Associations → Entertainment → Internet |
| APTN | Aboriginal Peoples Television Network (www.aptn.ca) | In English | → Entertainment → Civilization, culture, progress |
| ARACC | Amateur Radio Association of Central California | In English | → Associations → United States |
| ARCEP | Autorité de Régulation des Communications Électroniques et des Postes (www.arcep.fr) | In French | → Central administration → Transport and postal services → France |
| ARCOMSAT | Arab League Communications Satellite | In English | → Astronautics |
| ARISE | Automatic Railway Information Systems for Europe | In English | → Rail transport engineering → Transport and postal services |
| ARJ | Association des Radios Juives | In French | → Associations → Judaism |
| ARM | Asynchronous Response Mode | In English | → Networks, communication |
| ARMTV | Public Television & Radio Company of Armenia (www.armtv.com) | In English | |
| ARPC | Asynchrone Remote Procedure Call | In English | |
| ARQ | Automatic Repeat Request | In English | |
| ARRL | American Radio Relay League (www.arrl.org) | In English | → Organizations and associations → United States |
| ART | Agence de Régulation des Télécommunications | In French | → Public administration, government |
| ART | Autorité de Régulation des Télécommunications | In French | → Central administration |
| ARTE | Association Relative à la Télévision Européenne (www.arte.tv) | In French | → Entertainment |
| ARTESI | Agence Régionale des Technologies et de la Société de l'Information d'Île-de-France | In French | → Computer science → Engineering, technology → France |
| ASAI | Adjunct/Switch Application Interface | In English | → Networks, communication |
| ASAM | ATM Subscriber Access Multiplexer | In English | |
| ASB | Advanced System Buffering | In English | → Networks, communication |
| ASBR | Autonomous System Boundary Router | In English | |
| ASCO | Arab Satellite Communications Organization | In English | → Organizations and associations → Astronautics |
| ASCO | Arab Space Communications Organization | In English | → Organizations and associations → Astronautics |
| ASF | Advanced Streaming Format | In English | → Data → Networks, communication |
| ASIP | AppleShare IP | In English | → Networks, communication |
| ASN | Alcatel Submarine Networks | In English | → Networks, communication |
| ASP | AppleTalk Session Protocol | In English | → Networks, communication |
| ASP | Auxiliary Signal Path | In English | |
| ASS | Antenna Support Structure | In English | |
| ASTA | Anti-Spam Technical Alliance | In English | |
| AT | Access and Terminals | In English | → Human-computer interaction |
| AT&T | American Telephone & Telegraph (www.att.com) | In English | → United States |
| AT2I | Assistance Téléphonie Informatique Internet sur Grenoble (www.groupe-at2i.com) | In French | → Internet |
| ATC | Advanced Transfer Cache | In English | → Networks, communication |
| ATCAP | Army Telecommunications Automation Program | In English | → Military affairs |
| ATDRS | Advanced Tracking and Data Relay Satellite | In English | → Astronautics |
| ATHENA | Annuaire TélépHoniquE NAtional | In French | |
| ATIC | Associazione Tecnica Italiana per la Cinematografia e la Televisione | In Italian | → Associations → Cinema, movies → Italia |
| ATIS | Alliance for Telecommunications Industry Solutions (www.atis.org) | In English | → Organizations and associations → Standardization |
| ATLAP | AppleTalk Link Access Protocol | In English | → Computer-based techniques |
| ATM | Asynchronous Transfer Mode | In English | → Networks, communication |
| ATR | Australian Telecommunication Research | In English | → Serial publications, periodicals → Australia |
| ATRAC | Adaptive TRansform Acoustic Coding | In English | |
| ATS | Administrative Telephone System | In English | → Public administration, government |
| ATS | Administrative Terminal System | In English | → Public administration, government |
| ATSC | Advanced Television Systems Committee | In English | |
| ATTC | Austrian Traffic Telematics Cluster (www.attc.at) | In English | → Organizations and associations → Electronics → Transport and postal services → Austria |
| ATU-C | ADSL Transmission Unit at Central Office | In English | → Networks, communication |
| ATU-R | ADSL Transmission Unit for Resident | In English | → Networks, communication |
| ATV | Andorra Televisió | In Catalan | → Andorra |
| AUC | Authentication Center | In English | |
| AUG | Administrative Unit Group | In English | |
| AURIF | Association des Utilisateurs de Réseaux Informatiques en Île-de-France | In French | → Associations → Networks, communication → France |
| AURP | AppleTalk Update-Based Routing Protocol | In English | → Networks, communication |
| AV | Access Violation | In English | → Networks, communication |
| AVL | Automated Vehicle Location | In English | → Automobile manufacturing |
| AVRO | Algemene Vereniging Radio Omroep | In Dutch | → Organizations and associations |
| B2M | Business-to-Mobile | In English | → Trade |
| B8ZS | Bipolar with 8-Zero Substitution | In English | → Electronics |
| BA | Behaviour Aggregate | In English | → Networks, communication |
| BA | Basic Access | In English | → Networks, communication |
| BAFTA | British Academy of Film and Television Arts (www.bafta.org) | In English | → Academies → Cinema, movies → Software → United Kingdom |
| BAIT | Bulgarian Association of Information Technologies | In English | → Associations → Computer science |
| BARC | Baldwin Hills Amateur Radio Club | In English | → Organizations and associations |
| BAS | Broadband Access Server | In English | |
| BASIS | Business Action to Support the Information Society | In English | → Economics → Computer science |
| BAT | Bouquet Association Table | In English | |
| BBC | British Broadcasting Corporation (https://www.bbc.co.uk) | In English | → United Kingdom |
| BC | Broadcast | In English | |
| BCB | Backbone Core Bridge | In English | → Networks, communication |
| BCCH | Broadcast Control CHannel | In English | |
| BCT | Bureau Central Téléphonique | In French | |
| BEARS | Burbank Emergency Amateur Radio Service | In English | |
| BECTA | British Educational Communications and Technology Agency | In English | → Central administration → Education → Central administration → Computer science → United Kingdom |
| BEPTOM | Bureau d'Études des Postes et Télécommunications d'Outre-Mer | In French | → Postal services → France |
| BHCA | Busy Hour Call Attempt | In English | |
| BITKOM | Bundesverband Informationswirtschaft, Telekommunikation und Neue Medien (www.bitkom.org) | In German | → Organizations and associations → Computer science |
| BLabR | Bell Laboratories Record | In English | → Serial publications, periodicals |
| BLU | Bande Latérale Unique | In French | |
| BNR | Bălgarsko Nationalno Radio | In Bulgarian | |
| BNRT | Bureau National de Renseignements Téléphoniques | In French | |
| BNT | Bălgarska Nationalna Televizija | In Bulgarian | |
| BP | Band-Pass | In English | → Electronics |
| BP | Bande Passante | In French | → Networks, communication |
| BPN | Bloc Primaire Numérique | In French | → Networks, communication |
| BPSK | Binary Phase-Shift Keying | In English | |
| BQN | Bloc Quaternaire Numérique | In French | → Networks, communication |
| BRAN | Broadband Radio Access Network | In English | |
| BRAN | Broadband Radio Access Networks | In English | |
| BRI | Basic Rate Interface | In English | → Networks, communication |
| BRT | Belgische Radio- en Televisieomroep | In Dutch | → Belgium |
| BRTN | Belgische Radio- en Televisieomroep Nederlandstalige | In Dutch | → Belgium |
| BSC | Base Station Controller | In English | |
| BSC | Bluetooth Smart Card | In English | → Networks, communication |
| BSI | Bundesamt für Sicherheit in der Informationstecknik (www.bsi.de) | In German | → Organizations and associations → Computer science |
| BSIC | Base Station Identification Code | In English | |
| BSIG | Bluetooth Special Interest Group (www.bluetooth.com) | In English | → Organizations and associations → Networks, communication |
| BSN | Backward Sequence Number | In English | → Networks, communication |
| BSN | Bloc Secondaire Numérique | In French | → Networks, communication |
| BSR | Broadband Services Router | In English | → Networks, communication |
| BSS | Base Station Subsystem | In English | |
| BT | Business Telecommunications | In English | |
| BT | British Telecommunications (https://www.bt.com) | In English | → United Kingdom |
| BTC | Business TeleCommunications | In English | |
| BTC | Bulgarian Telecommunication Company | In English | |
| BTE | British Telecommunications Engineering | In English | → Serial publications, periodicals → United Kingdom |
| BTN | Bloc Tertiaire Numérique | In French | → Networks, communication |