286 C Centigrade or Celsius C Committee C&ISM Consultant and Information Systems Marketing Group C-STEP Cultural,Societal,Technological,Economic,Political CA Cable CAA Chaotic Ansi Artists CABS Carrier Access Billing System CAC Calling-card Authorization Center CAC Carrier Access Code CAD Computer Aided Design CAD Computer Aided Dispatch CAD Computer Aided Drafting CADV Combined Alternate Data/Voice CAEM Computer Aided Engineering and Manufacturing CAFD Controllers Automatic Message Accounting Format Description CAFM Computer Aided Facilities Management CAI Call Assembly Index CAIS Collocated Automatic Intercept System CALRS Centralized Automatic Loop Reporting System CAM Computer Aided Manufacturing CAMA Centralized Automatic Message Accounting CAROT Centralized Automatic Reporting On Trunks CAS Circuit Associated Signaling CAS Column Address Strobe CAS Computerized Autodial System CAS Customer Administrative Services CASE Computer Aided Software Engineering CAT Computer-aided Test CAT Craft Access Terminal CATLAS Centralized Automatic Trouble Locating & Analysis System CAU Computer Anarchists Underground CBBS Computerized Bulletin Board System CBC Cipher Block Chaining CBI Computer-based Instruction CBM Commodore Business Machines CBPXI Computer Private Branch Exchange Interface CBS Common Bom System CBS CrossBar Switching CBX Cybrix CBX Computerized Branch Exchange CBX Computerized Business Exchange CC Credit Card CC Calling Card CC Carbon Copy CC Central Control CC Common Control CC Cost Center CC Country Code CC Courtesy Copy CC Cryptic Criminals CCC Central Control Complex CCC Chaos Computer Club CCC Clear Channel Capability CCC Community Computer Center CCC Computer Control Center CCD Customer Configuration Document CCEP Commercial Communications Endorsement Program CCH Connections per Circuit per Hour CCI Cyber Crime International CCIR Comite Consultif Internationale des Radio Communications CCIS Common Channel Interoffice Signalling CCITT Committee Consultative International Telegraph and Telephone CCITT Committee Consultif Internationale Telegraph et Telephonie CCM Customer Control Management CCNC Common Channel Network Controller CCNC Computer Communications Network Center CCOO Comprehensive Cost of Ownership CCR Customer Controlled Reconfiguration CCS Calling Card Service CCS Common Channel Signaling CCSA Common Central Switching Arrangement CCSA Common Control Switching Arrangement CCSS Common Channel Signalling System CCT Central Control Terminal CCT Cumulative Cycle Time CCTAC Computer Communications Trouble Analysis Center CCU COLT Computer Unit CCUTF Corrupt Computer Underground Taskforce CCV Calling Card Validation CD Compact Disk CDA Call Data Accumulator CDA Coin Detection and Announcement CDA Compound Document Architecture CDA Crash Dump Analyzer CDAR Customer Dialed Account Recording CDC Clark Development Company CDC Cult of the Dead Cat (Virus) CDC Cult of the Dead Cow (Text) CDCF Cumulative Discounted Cash Flow CDD Common Data Dictionary CDI Circle Digit Identification CDO Community Dial Office CDPR Customer Dial Pulse Receiver CDR Call Dial Routing CDR Compact Disk Reader CDS Circuit Design System CDS Craft Dispatch System CDUGD Computer Down Under Ground Digest CEF Cable Entrance Facility CEI Comparably Efficient Interconnection CEN Centaur CERT Certified Order CERT Computer Emergency Response Team CES Computer Election Systems CEV Control Environmental Vault CF Cyber Force CF Coin First CFB Cipher Feedback CFCA Communications Fraud Control Association CFM Cubic Feet per Minute CFO Chief Financial Officer CFR Code of Federal Regulations CGA Color Graphics Adapter CGI Console Gaming Informers CGN Concentrator Group Number CHINA Communist Hackers In North America CHIPS Clearing House Interbank Payments System CI Cluster Interconnect or Computer Interconnect CIA Coders In Action CIA Creators of Intense Art CIA Central Intelligence Agency CIC CSNET Information Center CIC Carrier Identification Codes CICS Customer Information Control System CII Call Identity Index CIM Computer Integrated Manufacturing CIMT Computer Integrated Manufacturing and Technology CIR Computer Integrated Research CIRU Computer Industry Research Unit CIS Commercial Instruction Set CIS Compuserve Information Service CIS Customer Intercept Service CISA Certified Information Systems Auditor CISC Complex Instruction Set Computing CISSD Canadian International Society for Social Deviancy CIT Computer Integrated Telephony CKS Celestial Knights CLASS Centralized Local Area Selective Signaling CLASS Custom Local Area Signaling Service CLDN Calling Line Directory Number CLEI Common Language Equipment Identification CLF Cyberpunk Liberation Front CLI Calling Line Ident CLID Calling Line Identification CLLI Common Language Location Identification CLM Career Limiting Move CLP Country List Price CMAC Centralized Maintenance and Administration Center CMAS Central Massachusetts Administrative Services CMC Carry-in Monthly Charge CMC Cellular Mobile Carrier CMC Construction Maintenance Center CMDF Combined Main Distributing Frame CMDS Centralized Message Data System CMOS Complementary Metal Oxide Semiconductor(Silicon) CMP Cooperative Marketing Program or Partner CMS Call Management System CMS Circuit Maintenance System CMS Communications Management Subsystem CMS Conversational Monitoring System CMT Cellular Mobile Telephone CN Change Notice CN/A Customer Name & Address CNA Communications Network Application CNAB Customer Name Address Bureau CNCC Customer Network Control Center CNI Common Network Interface CNMS Cylink Network Management System CNS Central Nervous System CNS Complimentary Network Service CO Central Office COAM Customer Owned and Maintained COBOL Common Business Oriented Language COC Circuit Order Control COC Corporate Operations Committee COCOT Customer Owned Coin Operated Telephone COD Children Of Damnation COD Career Opportunity Days COD Cash on Delivery CODCF Central Office Data Connecting Facility CODE Crackers of Digital Equipment CODEC Coder-Decoder COE Central Office Equipment COEES Central Office Equipment Engineering System COEM Commercial Original Equipment Manufacturer COJ Court Of Justice COLT Central Office Line Tester COM Computer Output MicroFilm COMSAT Communications Satellite COMSEC Communications Security COMSTAR Common System for Technical Analysis & Reporting CON Central Office News CONN Connector CONTACT Central Office Network Access CONUS Continental United States COPIS Corporate Planning Information System COR Corruption CORE Criminals of Radical Extremes CORNET Corporate Network CORP Creators of Revolutionary Pictures COS Class Of Service COSMIC Common Systems Main InterConnection COSMOS Computerized System for Mainframe Operations COT Central Office Terminal CP Control Program CP/M Control Program Master CP/M Control Program for Microcomputers CPA Centralized/Bulk Power Architecture CPC Cellular Phone Company CPC Circuit Provisioning Center CPD Central Pulse Distributor CPE Customer Premises Equipment CPH Cost Per Hour CPI Characters Per Inch CPI Corrupt Programming International CPM Cost-Per-Minute CPMP Carrier Performance Measurement Plan CPO Corporate Product Operations CPP Corporate Planning Process CPS Characters Per Second CPSR Computer Professionals for Social Responsibility CPU Central Processing Unit CRAS Cable Repair Administrative System CRC Customer Record Center CRC Customer Return Center CRC Cyclic Redundancy Check CREG Concentrated Range Extension & Gain CREN Corporation for Research and Educational Networking CRFMP Cable Repair Force Management Plan CRG Central Resource Group CRIS Customer Record Information System CRS Centralized Results System CRSAB Centralized Repair Service Answering Bureau CRT Cathode Ray Tube CRUE Cheat Requests For Underground Elite CSA Carrier Servicing Area CSA Confederate States of America CSA Covenant,Sword,and Arm of the Lord CSACC Customer Service Administration Control Center CSAR Centralized System for Analysis Reporting CSC Cell Site Controller CSC Customer Support Center CSDC Circuit Switched Digital Capability CSDN Chinese Software Distribution Network CSG Corporate Systems Group CSM Computer Systems Manufacturing CSM Corrupt Society Magazine CSMA/CD Carrier Sense Multiple Access/Collision Detection CSNET Computer Science network CSNET Computer and Science Research Network CSO Central Services Organization CSO Complimentary Solutions Organization CSP Coin Sent Paid CSR Customer Service Records CSS Computer Special Systems CSS Computer Sub-System CSSE Computer Services System Engine CSSG Customer Service Solutions Group CSU Channel Service Unit CT Current Transformer CTC Central Test Center CTM Contact Trunk Module CTMS Carrier Transmission Measuring System CTO Call Transfer Outside CTR Contour CTS Clear to Send CTS Configuration Technical Specialists CTSS Compatible Time Sharing System CTSS Cray Time Sharing System CTT Cartridge Tape Transport CTTC Cartridge Tape Transport Controller CTTN Cable Trunk Ticket Number CTY Console TeleType CU Computer Underground CU Control Unit CU Customer Unit CUCRIT Capital Utilization Criteria CUD Celerity Utilities Division CUD Computer Underground Digest CUM Crazy Users on a Mission CUM Cult of the Uncircumcised Masterbater CUNY City University of New York CVR Compass Voice Response CW Cyber Warriors CWC City Wide Centrex CWD Call Waiting Deluxe