| O'MASTER COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| OMNIUM COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Onelink Communications Limited | Private company limited by shares | Live |
| ONELINK COMMUNICATIONS NETWORK LIMITED | Private company limited by shares | Dissolved |
| Onemayfly Communications Limited | | Live |
| O-NET COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Live |
| Only Communications Limited | Private company limited by shares | Live |
| Oplink Communications Limited | Private company limited by shares | Live |
| OPNETI Communications Co Limited | Private company limited by shares | Live |
| HUIYUAN OPTICAL COMMUNICATIONS CO., LIMITED | Private company limited by shares | Live |
| KARSEN OPTICAL COMMUNICATIONS (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| HAIYU OPTICAL COMMUNICATIONS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OPTI-ZONE COMMUNICATIONS (HK) COMPANY LIMITED | Private company limited by shares | Live |
| ORBLINKS COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| ORCHID COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| ORIENT SUN COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ORIGINAL COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Live |
| CHINA OVERSEAS COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Live |
| OVERSEAS COMMUNICATIONS IMMIGRATION CONSULTING LIMITED | Private company limited by shares | Dissolved |
| PACIFIC COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC RIM COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| TOP PACIFIC COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| ONE PACIFIC COMMUNICATIONS LIMITED -THE- | Private company limited by shares | Live |
| HK Pacific Communications Limited | | Live |
| JCJ ASIA PACIFIC COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| DT Communications Asia Pacific Limited | Private company limited by shares | Live |
| CYBER COMMUNICATIONS (ASIA PACIFIC) LIMITED | Private company limited by shares | Dissolved |
| LEVEL 3 COMMUNICATIONS (ASIA PACIFIC) LIMITED | Private company limited by shares | Live Commenced dormancy on 03-Dec-2004 |
| MATERNA COMMUNICATIONS ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| POPSTAR COMMUNICATIONS ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| PACIFIC CENTURY COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC INTERNET COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PACIFIC NEXT COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PACO COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| NEW PAGE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| STAR PAGING (COMMUNICATIONS EQUIPMENT) MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| HK - SHENZHEN PAGING & COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| WELLPOT PAGING COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PANTECH COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| PARACOM COMMUNICATIONS CO., LIMITED | Private company limited by shares | Dissolved |
| PARADIGM COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| PARAGON COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Paragon Communications Limited | Private company limited by shares | Live |
| RICHARD PARKER COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| PARKES AND GEORGIA COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PARROT COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| STRATEGIC COMMUNICATIONS PARTNERS LIMITED | Private company limited by shares | Dissolved |
| PATRIOT COMMUNICATIONS SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Peak Communications Limited | Private company limited by shares | Live |
| PEGASUS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PCL PEOPLE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PEOPLE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Perception Communications Limited | Private company limited by shares | Live |
| PERIOD COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| PHENOM COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| PHILOSOPHY COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| PHOEBUS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PHOENIX COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Pigeons Communications Limited | | Live |
| PILINK COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| RED PINE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Pineapple Communications Limited | Private company limited by shares | Live |
| PINOCCHIO COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| TRIPLE PLAY COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Playroom Communications Limited | Private company limited by shares | Live |
| PLEASE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| A PLUS COMMUNICATIONS (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Plutus Communications Limited | Private company limited by shares | Live |
| POINT COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Pointe Communications Limited | Private company limited by shares | Live |
| POLESBASE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| POLYMEDIA COMMUNICATIONS (CHINA) LIMITED | Private company limited by shares | Dissolved |
| POWER COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| TARGET PRACTICE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PRAXIS COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Precious Communications Limited | | Live |
| PREMIER COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| Communications at Present Limited | Private company limited by shares | Live |
| PRESSENSE COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| PRESTO COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| PRidea Communications Limited | Private company limited by shares | Live |
| Prism Communications Group Limited | Private company limited by shares | Live |
| VOZ Communications Private Limited | Private company limited by shares | Live |
| PROACTIVE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PROAD COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| RED COMMUNICATIONS AND PRODUCTION LIMITED | Private company limited by shares | Live |
| IDPLANASIA COMMUNICATIONS & PRODUCTION CO. LIMITED | Private company limited by shares | Dissolved |
| DT COMMUNICATIONS ASIA PACIFIC (PRODUCTION) LIMITED | Private company limited by shares | Live |
| GM PRODUCTIONS & COMMUNICATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| C2 Productions & Communications Limited | Private company limited by shares | Dissolved |
| SOLLERTIS COMMUNICATIONS AND PRODUCTIONS LIMITED | Private company limited by shares | Live |
| Proexpo Communications Limited | Private company limited by shares | Live |
| Profi Link Communications Limited | Private company limited by shares | Live |
| PRO-INTELLIGENCE COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PROLOGUE COMMUNICATIONS LIMITED | | Live |
| CENTURY PROMISE COMMUNICATIONS (HK) LIMITED | Private company limited by shares | Live |
| PROMPTUS COMMUNICATIONS LIMITED | Private company limited by shares | Dissolved |
| PROSONIC COMMUNICATIONS (H.K.) LIMITED | Private company limited by shares | Dissolved |