| Acronym | Sense | Language | Topics |
|---|---|---|---|
| BSR | Brevet de Sécurité Routière | In French | → Education → Transport and postal services |
| BSR | Broadband Services Router | In English | → Networks, communication → Telecommunications |
| BSS | Base Station Subsystem | In English | → Telecommunications |
| BT | Business Telecommunications | In English | → Telecommunications |
| BT | British Telecommunications (https://www.bt.com) | In English | → Telecommunications → United Kingdom |
| BTB | Belgische Transportarbeidsbond | In Dutch | → Organizations and associations → Labour, labour economics → Transport and postal services → Belgium |
| BTC | Business TeleCommunications | In English | → Telecommunications |
| BTC | Bulgarian Telecommunication Company | In English | → Telecommunications |
| BTE | British Telecommunications Engineering | In English | → Serial publications, periodicals → Telecommunications → United Kingdom |
| BTN | Bloc Tertiaire Numérique | In French | → Telecommunications → Networks, communication |
| BTRC | Belaruskaja Tele-Radio Campanija | In Russian | → Telecommunications |
| BTRC | Bio-Tek Research Consultants (www.btrc.com) | In English | → Consulting → Biotechnology |
| BTRC | Bluetooth Remote Control | In English | → Telecommunications |
| BTS | Base Transceiver Station | In English | → Telecommunications |
| BuAkK | Budapest, Akadémiai Kiadó | In Hungarian | → Graphic industries, printing, publishing → Serial publications, periodicals → Hungary |
| BUPT | Beijing University of Posts and Telecommunications (https://www.bupt.edu.cn/) | In English | → Higher education, universities → Transport and postal services → Telecommunications → China |
| BVBC | Bundesverband der Bilanzbuchhalter und Controller | In German | → Organizations and associations → Accounting |
| BVP | Bureau de Vérification de la Publicité | In French | → Advertising |
| C&W | Cable & Wireless | In English | → Networks, communication → Telecommunications |
| C2T | Cable Connect Technology | In English | → Networks, communication → Telecommunications |
| C3 | Command and Control Communications | In English | → Telecommunications → Military affairs |
| CAB | Civil Aviation Board | In English | → Aeronautics, aircraft → Transport and postal services |
| CABA | Connecticut Antiquarian Booksellers Association | In English | → Associations → Trade → Graphic industries, printing, publishing |
| CADH | Communications and Data Handling | In English | → Telecommunications → Data processing |
| CAETI | Centre d'Alta Especialització en Tecnologies de la Informació | In Spanish | → Computer science → Telecommunications |
| CAF | Capacité d'Autofinancement | In French | → Finance → Accounting |
| CAJV | Central Accounting Journal Voucher = PJCC | Pièce de Journal de la Comptabilité Centrale | In French |
In English | → Accounting |
| CALIPSO | Comptabilité Axée sur la LIsibilité de Processus et la Simplification des Organisations | In French | → Accounting |
| CAMEL | Customized Applications for Mobile networks Enhanced Logic | In English | → Networks, communication → Telecommunications |
| CAN | Compagnie Auxiliaire de Navigation | In French | → Transport and postal services |
| CAO | Central Accounting Office | In English | → Accounting |
| CAP | Cost Account Package | In English | → Prices → Accounting |
| CAP | Carrierless Amplitude Phase | In English | → Telecommunications |
| CAPEX | CAPital EXpenditure | In English | → Finance → Accounting |
| CAPS | Call Attempts Per Second | In English | → Telecommunications |
| CARS | Configuration Accounting and Reporting System | In English | → Accounting |
| CAS | Configuration Accounting System | In English | → Accounting |
| CAS | Cost Accounting Standard | In English | → Accounting → Prices |
| CAS | Channel Associated Signaling | In English | → Telecommunications |
| CASB | Cost Accounting Standards Board | In English | → Organizations and associations → Standardization → Accounting → Prices |
| CATV | Cable Television | In English | → Telecommunications |
| CATV | Community Antenna Television | In English | → Telecommunications |
| CAUCE | Coalition Against Unsolicited Commercial Email | In English | → Organizations and associations → Networks, communication → Telecommunications |
| CAUG | Civil Aviation Users Group | In English | → Organizations and associations → Aeronautics, aircraft → Transport and postal services |
| CAVEC | Caisse d'Assurance Vieillesse des Experts-Comptables | In French | → Labour, labour economics → Insurance → Accounting |
| CBARS | Classified Baseline Accounting and Reporting System | In English | → Accounting |
| CBC | Cyprus Broadcasting Corporation (www.cybc.com.cy) = ΡIK | Ραδιοφωνικό Ίδρυμα Κύπρου | In Greek = RIK | Radiofoniko Idryma Kyprou | In Greek |
In English | → Telecommunications |
| CC | Crew Compartment | In English | → Aeronautics, aircraft → Astronautics → Transport and postal services |
| CC | Communications Control | In English | → Telecommunications |
| CCARES | Culver City Amateur Radio Emergency Service | In English | → Telecommunications |
| CCBS | Call Completion on Busy Subscriber | In English | → Telecommunications |
| CCC | Communication Control Center | In English | → Telecommunications |
| CCCH | Common Control Channel | In English | → Telecommunications |
| CCCPA | Convention Collective de la Communication et de la Production Audiovisuelles | In French | → Labour, labour economics → Telecommunications → 659 |
| CCCPA | Cleveland-Cuyahoga County Port Authority | In English | → Municipal administration → Transport and postal services |
| CCEP | Comité Consultatif d'Études Postales | In French | → Organizations and associations → Postal services |
| CCFE | Communauté des Chemins de Fer Européens | In French | → Organizations and associations → Transport and postal services |
| CCIERBC | Comité Consultatif INRETS d'Éthique sur la Recherche Biomédicale et Comportementale | In French | → Organizations and associations → Ethics → Medicine → Transport and postal services |
| CCIR | International Radio Consultative Committee | In English | → Organizations and associations → Telecommunications |
| CCITT | Comité Consultatif International pour le Téléphone et le Télégraphe | In French | → Organizations and associations → Telecommunications |
| CCITT | Certification for IT&T | In English | → Networks, communication → Telecommunications |
| CCITT | Comité Consultatif Tnternational Télégraphique et Téléphonique | In French | → Organizations and associations → Telecommunications |
| CCM | Compagnie Corse Méditerranée | In French | → Transport and postal services |
| CCP | Compte Chèque Postal | In French | → Banks → Postal services |
| CCR | Centrale Commissie voor de Rijnvaart = CCR | Commission Centrale pour la Navigation du Rhin | In French = CCR | Central Commission for Navigation on the Rhine | In English = ZKR | Zentralkommission für die Rheinschifffahrt | In German |
In Dutch | → Transport and postal services |
| CCR | Commission Centrale pour la Navigation du Rhin = ZKR (look above) |
In French | → Transport and postal services |
| CCR | Central Commission for Navigation on the Rhine = ZKR (look above) |
In English | → Transport and postal services |
| CCR | Commission Consultative des Radiocommunications | In English | → Organizations and associations → Telecommunications |
| CCS | Command and Communication System | In English | → Telecommunications |
| CCS | Console Communication System | In English | → Telecommunications |
| CCS | Cargo Community System | In French | → Transport and postal services |
| CCS | Centre de Coût de Structure | In French | → Accounting |
| CCS7 | Common Channel Signalling System 7 | In English | → Networks, communication → Telecommunications |
| CCSC | Computer and Communications Security Center | In English | → Computer science → Telecommunications |
| CCSD | Collins Communications Systems Division | In English | → Telecommunications |
| CCSR | Centre for Communication Systems Research | In English | → Research institutes → Telecommunications |
| CCT | Centre de Coûts Techniques | In French | → Accounting |
| ccTLD | Country code Top Level Domain | In English | → Networks, communication → Telecommunications |
| CCTS | Call Center Test System | In English | → Telecommunications |
| CCTV | Closed-Circuit Television | In English | → Telecommunications |
| CCU | Communications Carrier Umbilical | In English | → Telecommunications |
| CCU | Communications Carrier Unit | In English | → Telecommunications |
| CCU | Crew Communications Unit | In English | → Telecommunications |
| CCU | Crewman Communications Umbilical | In English | → Telecommunications |
| CDA | Continuous Descent Approach | In English | → Aeronautics, aircraft → Transport by air |
| CDC | Collins Defense Communications | In English | → Networks, communication → Telecommunications → Military affairs |
| CDCD | Collins Defense Communications Division | In English | → Military affairs → Telecommunications |
| CdG | Contrôle de Gestion | In French | → Accounting |
| CDMA | Code Division Multiple Access = AMRC | Accès Multiple par Répartition en Code | In French |
In English | → Telecommunications |
| CDNT | Centre Droit et Nouvelles Technologies | In French | → Law, jurisprudence → Telecommunications |
| CDPD | Cellular Digital Packet Data | In English | → Data → Telecommunications |
| CEC | Coût d'Exploitation par Client | In French | → Accounting |
| CECB | Coupon-Eligible Converter Box | In English | → Telecommunications |
| CECCAR | Corpul Expertilor Contabili si Contabililor Autorizati din România | In Romanian | → Commercial law → Accounting → Romania |
| CEDEX | Courrier d'Entreprise à Distribution EXceptionnelle | In French | → Postal services → France |
| CEDIA | Consorcio Ecuatoriano para el Desarrollo de Internet Avanzado | In Spanish | → Internet → Organizations and associations → Telecommunications |
| CEGF | Compagnie des Entrepôts et Gares Frigorifiques | In French | → Transport and postal services → Rail transport engineering |
| CEIS | Compagnie Européenne d'Intelligence Stratégique | In French | → 659 |
| CEMT | Conferinţa Europeană a Miniştrilor de Transport | In Romanian | → International relations → Central administration → Transport and postal services |
| CEMT | Conférence Européenne des Ministres des Transports (www.cemt.org) |
In French | → European Union → Transport and postal services |
| CENA | Centre d'Études de la Navigation Aérienne | In French | → Transport and postal services |
| CENTACS | Center for Tactical Communications Systems | In English | → Telecommunications → Military engineering |
| CENTIC | Centro de Tecnologías de Información y Comunicación (www.centic.es) | In Spanish | → Computer science → Telecommunications → Spain |
| CePIT | Centar za Proučavanje Informacionih Tehnologija | In Serbian | → Telecommunications |
| CEPT | Conférence Européenne des Postes et Télécommunications (www.cept.org) | In French | → Organizations and associations → Telecommunications → Transport and postal services |
| CERP | Comité Européen de Réglementation Postale | In French | → Organizations and associations → Standardization → Postal services → Europe |
| CERTU | Centre d'Études sur les Réseaux, les Transports, l'Urbanisme et les constructions publiques | In French | → Research institutes → Civil engineering → Transport and postal services → Construction |
| CESIA | Centre d'Études des Systèmes d'Information des Administrations | In French | → Computer science → Public administration, government → Telecommunications |
| CESP | Centre d'études des supports de publicité | In French | → Advertising |
| CESTEL | Centro Español de Servicios Telemáticos (www.cestel.es) | In Spanish | → Computer science → Telecommunications → Spain |
| CETE | Centre d'Étude Technique de l'Équipement | In French | → Civil engineering → Transport and postal services |
| CETELIC | Centre de Traitement Électronique Intercaisses | In French | → Computer-based techniques → Telecommunications |
| CETIC | Centre d’Excellence en Technologies de l’Information et de la Communication (www.cetic.be) | In French | → Computer science → Telecommunications |
| CETUR | Centre d'Études Techniques des Transports Urbains | In French | → Vehicle engineering → Transport and postal services |
| CFC | Chemins de Fer de la Corse (www.traincorse.net) | In French | → Rail transport engineering → Transport and postal services |
| CFI | Canal France international | In French | → Telecommunications → France |
| CFNR | Compagnie Française de Navigation Rhénane | In French | → Transport and postal services → France |
| CFPNC | Centre de Formation du Personnel Navigant Commercial | In French | → Specialized or polytechnical colleges → Transport by air |
| CFTE | Center for Transportation Excellence | In English | → Vehicle engineering → Transport and postal services |
| CFTV | Chemin de Fer Touristique du Vermandois | In French | → Transport and postal services → Tourism |
| CGA | Centre de Gestion Agréé | In French | → Economics → Accounting |
| CGCT | Compagnie Générale de Constructions Téléphoniques | In French | → Telecommunications |
| CGFTE | Compagnie Générale Française de Transports et d'Entreprise | In French | → Transport and postal services → France |
| CGI | Cell Global Identity | In English | → Telecommunications |
| CGM | Compagnie Générale Maritime | In French | → Transport and postal services |
| CGNR | Compagnie Générale pour la Navigation du Rhin | In French | → Transport and postal services |
| CGS | Contrôle de Gestion Stratégique | In English | → Accounting → Management |
| CGS | Contrôle de Gestion Stratégique | In French | → Accounting |
| CGTI | Conseil Général des Technologies de l'Information | In French | → Computer science → Telecommunications |
| CHAP | Challenge Handshake Authentication Protocol | In English | → Telecommunications |
| CHMAC | Coopération Homme-Machine pour l'Assistance à la conduite | In French | → Human-computer interaction → Vehicle engineering → Transport and postal services |
| CHTML | Compact HyperText Markup Language | In English | → Programming languages → Telecommunications |
| CI | Cell Identity | In English | → Telecommunications |
| CIA | Configuration Identification Accounting | In English | → Accounting |
| CIC | Contrôle Interne Comptable | In French | → Accounting |
| CICOM | Carrefour International de la Communication | In French | → Telecommunications → Transport and postal services |
| CIDT | Centre de Développement des Technologies de l'Information | In French | → Computer science → Telecommunications |
| CIE | Communications Interface Equipment | In English | → Human-computer interaction → Telecommunications |
| CIF | Centre International de Fret | In French | → Transport and postal services |
| CIG | Communications and Interface Group | In English | → Human-computer interaction → Telecommunications |
| CIGT | Centre d'Ingénierie et de Gestion du Trafic | In French | → Transport and postal services |
| CIMIR | Commission Interministérielle des Matériels d'Imprimerie et de Reprographie | In French | → Central administration → Graphic industries, printing, publishing |
| CIP | Communications Interface Processor | In English | → Human-computer interaction → Telecommunications |
| CIRT | Compagnie Internationale de Radiodiffusion et de la Télévision | In French | → Telecommunications |
| CISI | Comité Interministériel pour la Société de l'Information | In French | → Central administration → Computer science → Telecommunications |
| CISR | Comité Interministériel de Sécurité Routière | In French | → Central administration → Transport and postal services |
| CISR | Comité Interministériel de la Sécurité Routière | In French | → Central administration → Telecommunications |
| CISS | Call Independent Supplementary Services | In English | → Telecommunications |
| CIT | Computing & Information Technology | In English | → Computer science → Telecommunications |
| CIT | Conseil Intermunicipal de Transport | In French | → Organizations and associations → Municipal administration → Transport and postal services → Canada |
| CITEL | Comisión Interamericana de Telecomunicaciones = CITEL | Commission Interaméricaine des Télécommunications | In French = CITEL | Comissão Interamericana de Telecomunicações | In Portuguese |
In Spanish | → Organizations and associations → Telecommunications |
| CITEL | Commission Interaméricaine des Télécommunications = (look above) |
In French | → Organizations and associations → Telecommunications |
| CITEL | Comissão Interamericana de Telecomunicações = (look above) |
In Portuguese | → Organizations and associations → Telecommunications |
| CITI | Centre d'Innovation en Télécommunications et Intégration de services | In French | → Research institutes → Telecommunications |
| CITIC | Centro Andaluz de Innovación y Tecnologías de la Información y las Comunicaciones (www.citic.es) | In Spanish | → Research institutes → Computer science → Telecommunications → Spain |
| CITILOG | Carrefour Intelligent - Traitement d'Images LOGiciels | In French | → Image processing → Transport and postal services |
| CITS | Croatian Information Technology Society | In English | → Organizations and associations → Computer science → Telecommunications |
| CIU | Communication Interface Unit | In English | → Human-computer interaction → Telecommunications |
| CLIP | Calling Number Identification Presentation | In English | → Telecommunications |
| CLIR | Calling Number Identification Restriction | In English | → Telecommunications |
| CLMS | Connectionless Message Service | In English | → Telecommunications |
| CMA | Configuration Management Accounting | In English | → Accounting |
| CMA | Compagnie Maritime d'Affrètement | In French | → 6295 → Transport and postal services |
| CMA | Certified Management Accountant | In English | → Accounting |
| CMJN | Cyan-Magenta-Jaune-Noir | In French | → Graphic industries, printing, publishing |
| CMO | Chief Marketing Officer | In English | → 659 |
| CMPC | Coût Moyen Pondéré du Capital = WACC | Weighted Average Cost of Capital | In English |
In French | → Finance → Accounting |
| CMRA | California Microwave Relay Association | In English | → Associations → Telecommunications → United States |
| CMSRSC | China Maritime Silk Roads Study Centre | In English | → Research institutes → Transport and postal services → China |
| CMTS | Cable Modem Termination System | In English | → Telecommunications → Networks, communication |
| CMVAS | Configuration Management Verification Accounting System | In English | → Accounting |
| CNA | Caisse Nationale des Autoroutes | In French | → Civil engineering → Transport and postal services |
| CNAC | China National Aviation Corporation | In English | → Organizations and associations → Transport by air |
| CNAE | Conferedación Nacional de Autoescuelas | In Spanish | → Organizations and associations → Education → Transport and postal services |
| CNAFMC | Caisse Nationale d'Allocations Familiales des Marins du Commerce | In French | → Social welfare → Transport and postal services |
| CNAFNI | Caisse Nationale d'Allocations Familiales de la Navigation Intérieure | In French | → Social welfare → Transport and postal services |
| CNBA | Chambre Nationale de la Batellerie Artisanale | In French | → Organizations and associations → Transport and postal services |
| CNC | Compagnie Nouvelle de Conteneurs | In French | → Transport and postal services |
| CNC | Conseil National de la Comptabilité (www.cnc.minefi.gouv.fr) | In French | → Organizations and associations → Accounting → France |
| CNCL | Commission Nationale de la Communication et des Libertés | In French | → Telecommunications → Politics |
| CNECB | Collège National des Experts Comptables de Belgique (www.ncab-cnecb.be) = NCAB | Nationaal College der Accountants van België | In Dutch |
In French | → Organizations and associations → Accounting → Belgium |
| CNET | Centre National d'Études des Télécommunications | In French | → Telecommunications |
| CNIR | Centre National d'Information Routière | In French | → Police → Transport and postal services |
| CNIT | Consorzio Nazionale Interuniversitario per le Telecomunicazioni | In Italian | → Higher education, universities → Telecommunications |
| CNL | Centre National du Livre | In French | → Graphic industries, printing, publishing → Literature |
| CNN | Compagnie Nationale de Navigation | In French | → Transport and postal services |
| CNoCP | Conseil de Normalisation des Comptes Publics (https://www.economie.gouv.fr/cnocp) | In French | → Central administration → Accounting |
| CNP | Compagnie Navale des Pétroles | In French | → Transport and postal services → 665 |
| CNPAC | Comité National de Prévention des Accidents de la Circulation | In French | → Central administration → Accidents, risks, safety → Transport and postal services |
| CNRA | Conseil National des Radios Associatives | In French | → Organizations and associations → Telecommunications |
| CNRB | Caisse Nationale de Retraite de la Batellerie | In French | → Labour, labour economics → Insurance → Transport and postal services |
| CNRL | Communications and Navigation Research Laboratory | In English | → Research institutes → Telecommunications |
| CNS | Communication Network Systems | In English | → Networks, communication → Telecommunications |
| CNS2T | Communication, Navigation et Surveillance pour les Transports Terrestres | In French | → Transport and postal services |
| CNSA | Contact Network of Spam Authorities | In English | → Telecommunications |
| CNT | Caisse Nationale des Télécommunications | In French | → Telecommunications |
| CNTC | Centre National des Technologies et du Consulting | In French | → Engineering, technology → Consulting |
| CoA | Chart of Accounts | In English | → Accounting |
| COAR | City of Orange Amateur Radio | In English | → Telecommunications |
| COB | Communications Office Building | In English | → Telecommunications |