| 1 | 10K / 100K | Ten Thousand / One Lakh |
| 2 | 1G | First Generation |
| 3 | 1P / 2P / 3P | Single / Two / Three Phase |
| 4 | 2BHK / 3BHK / 4BHK | Two / Three / Four Bedroom Hall Kitchen |
| 5 | 2D / 3D / 4D / 5D | Two / Three / Four / Five Dimensional |
| 6 | 2G / 3G / 4G / 5G | Second / Third / Fourth / Fifth Generation |
| 7 | 2G4U | Too Good for You |
| 8 | 2W / 3W / 4W | Two / Three / Four Wire Supply |
| 9 | 3GP | 3rd Generation Protocol |
| 10 | 3GPP | 3rd Generation Partnership Project |
| 11 | 3M | Minnesota Mining & Manufacturing |
| 12 | 3R3 | 3.3-ohm Resistor |
| 13 | 4K | 4000 Pixels |
| 14 | AAA | Authentication Authorization, Account |
| 15 | ACC | Analog Control Channel |
| 16 | AJAX | Asynchronous JavaScript And XML |
| 17 | ALGO | ALGOrithmic Language |
| 18 | ALU | Arithmetic Logic Unit |
| 19 | AMPS | Advanced Mobile Phone Service |
| 20 | API | Application Programming Interfaces |
| 21 | APL | Automatic Programming Language |
| 22 | APN | Access Point Name. |
| 23 | ARPANET | Advanced Research Projects Agency Network (the beginning of the internet) |
| 24 | ASAP | Application Assessment And Planning package (Lotus migration application) |
| 25 | ASCII | American Standard Code For Information Interchange |
| 26 | ASP | Active Server Pages |
| 27 | AUC | Authentication Center |
| 28 | BC | Billing Center |
| 29 | BCH | Broadcast Channel |
| 30 | BER | Bit Error Rate |
| 31 | BOSS | Business Organizer Scheduling System (one of the original hand-held organizers) |
| 32 | BRB | Be Right Back |
| 33 | BS | Base Station |
| 34 | BSC | Base Station Controller |
| 35 | BTS | Base Transceiver Station |
| 36 | BTW | By The Way |
| 37 | CAD | Computer Aided Design |
| 38 | CBR | Constant Bit Rate |
| 39 | CCTV | Closed Circuit Television |
| 40 | CD | Compact Disc |
| 41 | CDG | CDMA Development Group |
| 42 | CDMA | Code Division Multiple Access |
| 43 | CDMA2000 | Code Division Multiple Access… |
| 44 | CDN | Content Delivery Network |
| 45 | CDR | Call Detail Record |
| 46 | CD-ROM | Compact Disk – Read Only Memory |
| 47 | CLASS | Compiled java program- often used as class extension |
| 48 | CMYK | Cyan- Magenta- Yellow- blacK |
| 49 | CN | Core Network |
| 50 | COBOL | Common Business Oriented Language (programming language) |
| 51 | COMPUTER | Common Operating Machine Purposely used for Technological and Educational research |
| 52 | CPU | Central Processing Unit |
| 53 | CSS | Cascading Style Sheet |
| 54 | D/R | Distance to Reuse Ratio |
| 55 | DAMPS | Digital Advance Mobile Phone Service |
| 56 | DCC | Digital Color Code |
| 57 | DCIM | Data centre information management, Digital camera images |
| 58 | DELL | Digital Electronic Link Library |
| 59 | DM | Direct Message |
| 60 | DNS | Domain Name System |
| 61 | DOS | Disk Operating System |
| 62 | DP | Display Picture |
| 63 | DTA | Data Transfer Adapter |
| 64 | DTC | Digital Traffic Channel |
| 65 | DTH | Direct To Home |
| 66 | DTP | Desktop publishing, distributed transaction processing |
| 67 | ECS | Enhanced Chip Set |
| 68 | EDGE | Enhanced Data for Global Evolution |
| 69 | EDI | Electronic Data Interchange |
| 70 | EEPROM | Electronic Erasable Programmable Read Only Memory |
| 71 | EIR | Equipment Identity Register |
| 72 | ENIAC | Electronic Numerical Integrator and Calculator |
| 73 | EPS | Encapsulated PostScript |
| 74 | ESMR | Enhanced Specialized Mobile Radio |
| 75 | ETA | Estimated Time of Arrival |
| 76 | ETACS | Extended TACS |
| 77 | ETDMA | Extended Time Division Multiple Access |
| 78 | exe | Executable |
| 79 | FAQ | Frequently Asked Questions (files often found on BBS and Internet) |
| 80 | FCI | Flux Changes per Inch (drive tech terminology) |
| 81 | FDD | Frequency Division Duplex |
| 82 | FDM | Frequency Division Multiplexing |
| 83 | FDMA | Frequency Division Multiple Access |
| 84 | FM | Frequency Modulation |
| 85 | FORTRAN | FORmula TRANslating |
| 86 | FSK | Frequency Shift Keying |
| 87 | FTMD | Full Track Music Download |
| 88 | FTP | File Transfer Protocol |
| 89 | FYI | For Your Information |
| 90 | GGSN | Gateway GPRS Support Node |
| 91 | GMSK | Gaussian Minimum Shift Keying |
| 92 | GPRS | General Packet Radio Service |
| 93 | GPS | Global Positioning System |
| 94 | GSM | Global System for Mobile Communication |
| 95 | GSN | GPRS Support Node |
| 96 | HCL | Hindustan Computers Limited |
| 97 | HLR | Home Location Register |
| 98 | HP | Hewlett-Packard, Hindustan Petroleum, Horse Power |
| 99 | HTML | Hyper Text Markup Language |
| 100 | HTTP | HyperText Transfer Protocol |
| 101 | IC | Interchange Carrier |
| 102 | ID | Internal Device |
| 103 | iDEN | Integrated Dispatch Enhanced Network |
| 104 | IM | Instant Messenger. |
| 105 | IMEI | International Mobile Equipment Identity |
| 106 | IMO | In my opinion, International maritime organization |
| 107 | IMSI | International Mobile Subscriber Identity |
| 108 | INS | InterNet communication Settings |
| 109 | INTERNET | Interconnected Network |
| 110 | IP | Internet Protocol. |
| 111 | IPC | Inter-Processes Communications |
| 112 | IRDA | Infrared Data Association |
| 113 | ISP | Internet Service Provider |
| 114 | IT | Information Technology |
| 115 | ITU | International Telecommunication Union |
| 116 | IUC | Interconnect Usage Charge |
| 117 | IVRS | Interactive Voice Response System |
| 118 | IWF | Inter Working Function |
| 119 | J2EE | Java 2 Platform Enterprise Edition |
| 120 | JIO | Joint Implementation Opportunities |
| 121 | JS | JavaScript |
| 122 | JSP | Java Server Pages |
| 123 | Kbps | Kilobits per second |
| 124 | L8TR | Later |
| 125 | LASER | Light Amplification by Stimulated Emission of Radiation |
| 126 | LBS | Location-Based Services |
| 127 | LCD | Liquid Crystal Display. |
| 128 | LMAO | Laughing My A** Off |
| 129 | LMK | Let Me Know |
| 130 | LMR | Land Mobile Radio |
| 131 | LOL | Laughing Out Loud |
| 132 | LSI | Latent Semantic Indexing |
| 133 | LTE | Long Term Evolution |
| 134 | MAC | Media Access Control Address |
| 135 | MC | Message Center |
| 136 | MCS | Multi Carrier Mode |
| 137 | ME | Mobile Equipment |
| 138 | MIN | Mobile Identification Number |
| 139 | MIRS | Motorola Integrated Radio system |
| 140 | MIS | Management Information Systems |
| 141 | MOBILE | Modified Operation Byte Integration Limited Energy |
| 142 | MODEM | MODulate / DEModulate |
| 143 | MPEG | Motion Picture Experts Group (file extension MPG) |
| 144 | MSC | Mobile Switching Center |
| 145 | MTNL | Mahanagar Telephone Nigam Limited |
| 146 | MTS | Mobile Telephone Service |
| 147 | NAMPS | Narrowband Advanced Mobile Phone Service |
| 148 | NCC | Network Control Center |
| 149 | NIC | Network Interface Card |
| 150 | NMT | Nordic Mobile Telephone |
| 151 | NPDB | Number Portability Database |
| 152 | NTACS | Narrowband Total Access Communication Service |
| 153 | OK | Olla Kalla or Oll Korrect |
| 154 | OMG | Oh My God |
| 155 | ORACLE | Oak Ridge Automatic Computer And Logical Engine |
| 156 | OS | Operating System |
| 157 | OTT | Over The Top |
| 158 | PAD | Packet Assembler And Disassembler |
| 159 | PC | Personal Computer |
| 160 | PCI | Personal Computer Interface |
| 161 | PCM | Pulse Coded Modulation |
| 162 | PCN | Personal Communications Network |
| 163 | PCO | Public Call Office |
| 164 | PCS | Personal Communication Services |
| 165 | PDA | Personal Digital Assistant |
| 166 | PDC | Personal Digital Cellular |
| 167 | PDF | Portable Document Format |
| 168 | PDSN | Packet Data Switched Network |
| 169 | PERL | Practical Extraction Reporting Language |
| 170 | PFA | Please Find Attachment, Predictive Failure Analysis |
| 171 | PHP | Hypertext Preprocessor |
| 172 | PIN | Personal Identification Number |
| 173 | PM | Pulse Modulation |
| 174 | PN | Pseudorandom Noise |
| 175 | POP | Power On Password |
| 176 | PPDN | Public Packet Data Network |
| 177 | PPP | Point to Point Protocol |
| 178 | PSTN | Public Switched Telephone Network |
| 179 | PTT | Post Telephone and Telegraph |
| 180 | PUC | Pin Unblocking Key |
| 181 | PUK | PIN Unblocking Key |
| 182 | PVC | Permanent Virtual Circuits |
| 183 | QoS | Quality of Service |
| 184 | RADAR | Radio Detection And Ranging |
| 185 | RAM | Random-Access Memory |
| 186 | RAN | Radio Access Network |
| 187 | RAS | Remote Access Server / Service |
| 188 | RDBMS | Relational Data Base Management System |
| 189 | RNC | Radio Network Controller |
| 190 | ROFL | Rolling On Floor Laughing |
| 191 | ROM | Read Only Memory |
| 192 | SCH | Synchronization Channel |
| 193 | SDMA | Spatial Division Multiple Access |
| 194 | SEO | Search Engine Optimization |
| 195 | SGSN | Serving GPRS Support Node |
| 196 | SIM | Subscriber Identity Module |
| 197 | SIS | Subscriber Identity Security |
| 198 | SMS | Short Message Service |
| 199 | SMSC | Short Message Service Center |
| 200 | SMTP | Simple Mail Transfer Protocol |
| 201 | SNH | Sarcasm Noted Here |
| 202 | SQL | Structured Query Language |
| 203 | SSI | Server Side Includes (web technology that allows for dynamic data exchange in web pages) |
| 204 | STP | Shielded Twisted Pair |
| 205 | TACS | Total Access Communications System |
| 206 | TBH | To Be Honest |
| 207 | TCH | Traffic Channel |
| 208 | TDD | Time Division Duplex |
| 209 | TDMA | Time Division Multiple Access |
| 210 | TD-SCDMA | Time Division Synchronous Cod… |
| 211 | TFT | Thin Film Transistor |
| 212 | TIA | Telecommunications Industry Association |
| 213 | TLTR | Too Long To Read |
| 214 | TRAI | Telecom Regulatory Authority of India |
| 215 | TTYL | Talk To You Later |
| 216 | UE | User Equipment |
| 217 | UID | User IDentification (internet- intranet- and server login accesses) |
| 218 | UMTS | Universal Mobile Telecommunication System |
| 219 | UPR | User Performance Requirements |
| 220 | URL | Uniform Resource Locator. |
| 221 | USB | Universal Serial Bus |
| 222 | VBS | Visual Basic Scripting Language |
| 223 | VI | Vodafone-Idea |
| 224 | VIP | Vines Internet Protocol |
| 225 | VLR | Visitor Location Register |
| 226 | VMS | Voice Mail System |
| 227 | WAP | Wireless Application Protocol. |
| 228 | WCDMA | Wideband Code Division Multiple Access |
| 229 | WIFI | Wireless Fidility |
| 230 | WLAN | Wireless Local Area Network |
| 231 | WPA | Wi-Fi Protected Access |
| 232 | WPM | Words Per Minute |
| 233 | WWW | World Wide Web. |
| 234 | XHTML | Extensible Hypertext Markup Language |
| 235 | XML | Extensible Markup Language |
| 236 | XSL | EXtensible Stylesheet Language |
| 237 | YGTI | You Get The Idea |
