Cainiao Smart Logistics Network (Hong Kong) Limited
SBO Class 2 (local voice telephony)- Also registered as
- SBO Class 3 (IVANS)
- Address
- 26/F, Tower One, Times Square, 1 Matheson Street, Causeway Bay, Hong Kong
- Regulator reference
- SBO-0042
ISP & Telecom Directory · Hong Kong
Hong Kong Telecom & ISP Providers Starting With C
Registered contact details for the 67 OFCA-licensed operators whose name begins with the letter C, from the OFCA register as of 10 September 2026. Address requests to the registered address on the licence; the major operators also publish law-enforcement liaison channels through their corporate offices. Verify against the live register before serving legal process.
Showing 1–60 of 67 entries
Ce Dongli Technology (Hong Kong) Company Limited
SBO Class 3 (ISP)- Address
- Unit 1307, 13/F, Tower 2, Ever Gain Plaza, 88 Container Port Road, Kwai Chung, New Territories
- Regulator reference
- SBO-1517
Cenbong Int'l Holdings Limited
SBO Class 3 (ETS)- Address
- ROOM S032, 2/F, THE CAPITAL, 61-65 CHATHAM ROAD SOUTH, TSIM SHA TSUI, KOWLOON
- Regulator reference
- SBO-1546
CENTERLINK GLOBAL TELECOM LIMITED
SBO Class 3 (ISP)- Address
- FLAT/ROOM 20, BLOCK B3, 07/F., TUEN MUN INDUSTRIAL CENTRE, TUEN MUN, N.T
- Regulator reference
- SBO-1836
Centrex Telecom Company Limited
SBO Class 3 (ETS)- Address
- Unit 1603, 16th Floor, The L. Plaza, 367-375 Queen's Road Central, Sheung Wan, Hong Kong
- Regulator reference
- SBO-1169
Century Snail Communication Technology (HK) Co., Limited
SBO Class 3 (MVNO; ETS)- Address
- Room 1903, 19/F, Lee Garden One, 33 Hysan Avenue, Causeway Bay, Hong Kong
- Regulator reference
- SBO-1757
Changxin Group China Corporation Limited
SBO Class 3 (ISP; ETS)- Address
- Room 1705, Hip Kwan Commercial Building, 38 Pitt Street, Yau Ma Tei, Kowloon
- Regulator reference
- SBO-1714
Cherry Nova Limited
SBO Class 3 (ISP)- Address
- Room 1804, 18/F, K11 Atelier, 18-24 Salisbury Road, Tsim Sha Tsui, Kowloon
- Regulator reference
- SBO-2012
CHILIAN NETWORK TECHNOLOGIES (HONGKONG) LIMITED
SBO Class 3 (ISP)- Address
- Room A, 18/F, Hang Lung House, 184-192 Queen's Road Central, Hong Kong
- Regulator reference
- SBO-1859
China Broadband Communications (Hong Kong) Company Limited
SBO Class 3 (ISP)- Address
- Flat 06, 26/F, Laws Commercial Plaza, 788 Cheung Sha Wan Road Kowloon
- Regulator reference
- SBO-1460
China CTTIC HK Co., Limited
SBO Class 3 (IVANS)- Address
- Unit 6A, 22nd Floor, West Tower, Shun Tak Centre, 168-200 Connaught Road Central, Hong Kong
- Regulator reference
- SBO-1671
China Enterprise Netcom Corporation Limited
SBO Class 3 (ISP; ETS)- Address
- 25/F, CITIC Telecom Tower, 93 Kwai Fuk Road, Kwai Chung, New Territories
- Regulator reference
- SBO-0894
China Hong Kong International Communication Company Limited
SBO Class 3 (ISP)- Address
- Room 19-21, 22/F., Block B, Corporation Park, 11 On Lai Street, Shatin, N.T
- Regulator reference
- SBO-1420
CHINA INTERNATIONAL CRANCLOUD CO., LIMITED
SBO Class 3 (ISP)- Address
- Suite 1701-02A, 17/F., 625 KING’S ROAD, NORTH POINT, HK
- Regulator reference
- SBO-1868
CHINA IPX Communication Limited
SBO Class 3 (ISP)- Address
- Room 1104A, 11/F, Kai Tak Commercial Building, 317-319 Des Voeux Road Central, Sheung Wan, Hong Kong
- Regulator reference
- SBO-1866
China Mobile Hong Kong Company Limited
Unified Carrier Licence- Also registered as
- SBO Class 3 (ETS); SBO Class 3 (ISP)
- Phone
- 12580
- Website
- www.hk.chinamobile.com/en
- Address
- Level 20, Tower 1, Kowloon Commerce Centre, No. 51 Kwai Cheong Road, Kwai Chung, New Territories
- Regulator reference
- UCL-002; SBO-0473; SBO-0648; SBO-1175
China Mobile International Limited
Unified Carrier Licence- Also registered as
- SBO Class 2 (local voice telephony); SBO Class 3 (ISP; MVNO)
- Address
- 29/F & 30/F, Tower 1, Kowloon Commerce Centre, 51 Kwai Cheong Road, Kwai Chung, New Territories, Hong Kong
- Regulator reference
- UCL-035; SBO-0022
China Satellite Communications (Hong Kong) Corporation Limited
Unified Carrier Licence- Address
- Room 2107, Sino Favour Centre, 1 On Yip Street, Chai Wan, Hong Kong
- Regulator reference
- UCL-044
China Skyline Telecom Co., Limited
SBO Class 3 (ETS; IVANS)- Address
- Room 803, Chevalier House, 45-51 Chatham Road South, Tsim Sha Tsui, Kowloon
- Regulator reference
- SBO-1802
China Telecom Global Limited
Unified Carrier Licence- Also registered as
- SBO Class 3 (ISP; MVNO; ETS)
- Address
- 19/F, 21/F, 28/F, 29/F, 30/F, Everbright Centre, 108 Gloucester Road, Wan Chai, Hong Kong
- Regulator reference
- UCL-017; SBO-1114
China Tietong HongKong Telecom Company Limited
SBO Class 3 (ISP; ETS)- Address
- Room 1002, 10/F, Blk 1, Lippo Centre, No. 89 Queensway, Hong Kong
- Regulator reference
- SBO-0682
China Unicom (Hong Kong) Operations Limited
Unified Carrier Licence- Also registered as
- SBO Class 2 (local voice telephony); SBO Class 3 (IVANS); SBO Class 3 (ISP; MVNO; ETS)
- Address
- 28/F, Tower 1, The Gateway, 25 Canton Road, Tsim Sha Tsui, Kowloon
- Regulator reference
- UCL-052; SBO-0023; SBO-0922
CHINA-HONGKONG TELECOM LIMITED
SBO Class 3 (MVNO; ETS)- Address
- Rm. 01, 02, 14, 15, 37/F, Hong Kong Plaza, 188 Connaught Road West, Western District, Hong Kong
- Regulator reference
- SBO-0951
Chuan Wei Telecom (Hong Kong) Limited
SBO Class 3 (ETS; IVANS)- Address
- Flat A03, 9/F, Chuan Yuan Factory Building, 342-344 Kwun Tong Road, Kwun Tong, Kowloon
- Regulator reference
- SBO-1457
Chubb Hong Kong Limited
SBO Class 3 (alarm)- Address
- Room 708, 7/F., Guardforce Centre, 3 Hok Yuen Street East, Hung Hom, Kowloon
- Regulator reference
- SBO-0686
Cisco Services (Hong Kong) Limited
SBO Class 3 (IVANS; teleconferencing)- Address
- 27/F, One Taikoo Place, 979 King's Road, Quarry Bay, Hong Kong
- Regulator reference
- SBO-1635
CITIC Telecom International (Data) Limited
SBO Class 3 (ISP)Also known as: CITIC Telecom International Limited
- Also registered as
- SBO Class 3 (ISP; MVNO; ETS)
- Address
- 25/F., CITIC Telecom Tower, 93 Kwai Fuk Road, Kwai Chung, N.T
- Regulator reference
- SBO-0712; SBO-1015
CITIC Telecom International CPC Limited
Unified Carrier Licence- Also registered as
- SBO Class 3 (ISP; ETS)
- Address
- 20/F, Lincoln House, Taikoo Place, 979 King’s Road, Quarry Bay, Hong Kong
- Regulator reference
- UCL-063; SBO-0436
Citifax Information Management Limited
SBO Class 3 (IVANS)- Address
- Flat F, 24/F, Block II, Kingley Industrial Building, 33 Yip Kan Street, Wong Chuk Hang, Hong Kong
- Regulator reference
- SBO-1454
CityBus (China) Limited
SBO Class 3 (ISP)- Address
- 8 Chong Fu Road, Chai Wan, Hong Kong
- Regulator reference
- SBO-1808
Cloud Intelligence Limited
SBO Class 3 (ISP)- Address
- 31/F., Tower One, Times Square, 1 Matheson Street, Causeway Bay, Hong Kong
- Regulator reference
- SBO-1774
Cloud Interconnect Global Network Technology Limited
SBO Class 3 (IVANS)- Address
- Unit B121, 16/F, Tower 5, The Gateway, Tsim Sha Tsui, Kowloon
- Regulator reference
- SBO-1837
CLOUD NET OPERATIONS LIMITED
SBO Class 3 (ISP)- Address
- Unit 05, 13/F, Laws Commercial Plaza, 788 Cheung Sha Wan Road, Kowloon
- Regulator reference
- SBO-1982
Cloud Net Technologies Limited
SBO Class 3 (ISP)- Address
- Flat 05, 13/F, Laws Commercial Plaza, 788 Cheung Sha Wan Road, Kowloon
- Regulator reference
- SBO-1764
Cloud Valley Technology Limited
SBO Class 3 (IVANS)- Address
- Room 1401, Cambridge House, 26-28 Cameron Road, Tsimshatsui, Kowloon
- Regulator reference
- SBO-1761
CloudRadium (HK) Limited
SBO Class 3 (ISP)- Address
- Flat D, 23/F, Mai On Industrial Building, 17-21 Kung Yip Street, Kwai Chung, N.T
- Regulator reference
- SBO-1984
CLUSTERTECH LIMITED
SBO Class 3 (IVANS)- Address
- Room 211–213, 2/F, Lakeside 1, No. 8 Science Park West Avenue, Hong Kong Science Park, Shatin, N.T
- Regulator reference
- SBO-1642
CM Telecom Hong Kong Limited
SBO Class 3 (ETS; IVANS)- Address
- Unit 501, 5/F., Valley Centre, No. 80 - 82 Morrison Hill Road, Wan Chai, Hong Kong
- Regulator reference
- SBO-1947
CN Care Cyber Cloud Limited
SBO Class 3 (ISP; teleconferencing)- Address
- Unit 03, 27/F, Metropolis Tower, 6-10 Metropolis Drive, Hung Hom, Kowloon
- Regulator reference
- SBO-1769
Coastnet Communication (HK) Limited
SBO Class 3 (ISP; ETS)- Address
- Unit No. A222, 3F, Hang Fung Industrial Building Phase 2, No. 2G Hok Yuen Street, Hung Hom, Kowloon
- Regulator reference
- SBO-1557
Cocoa Oriental Network Limited
SBO Class 3 (ISP)- Address
- Room 2703, 27/F, Skyline Tower, 39 Wang Kwong Road, Kowloon Bay, Kowloon
- Regulator reference
- SBO-1728
Cogent Communications Hong Kong Limited
SBO Class 3 (ISP; ETS)- Address
- 6th Floor, The Annex Central Plaza, 18 Harbour Road, Hong Kong
- Regulator reference
- SBO-0851
Colosite HK Limited
SBO Class 3 (IVANS)- Address
- Rooms 05-15, 13A/F, South Tower, World Finance Centre, Harbour City, 17 Canton Road, Tsim Sha Tsui, Kowloon
- Regulator reference
- SBO-1421
Colt Technology Services Limited
SBO Class 3 (ISP)- Address
- Suites 906-7, 9/F, Lincoln House, Taikoo Place, 979 King's Road, Quarry Bay, Hong Kong
- Regulator reference
- SBO-1673
Comba Telecom Limited
SBO Class 3 (ISP)- Address
- Flat 606-7, 5W Building, Hong Kong Science Park, Pak Shek Kok, Shatin, N.T
- Regulator reference
- SBO-1790
Commerce One Limited
SBO Class 3 (ETS; IVANS)- Address
- Flat E, 17/F, Neich Tower, 128 Gloucester Road, Wanchai, Hong Kong
- Regulator reference
- SBO-1624
Commercial Radio Productions Limited
SBO Class 3 (IVANS)- Address
- 3 Broadcast Drive, Kowloon
- Regulator reference
- SBO-1675
Communilink Internet Limited
SBO Class 3 (IVANS)- Address
- Unit 9B, 2/F Laurels Industrial Centre, 32 Tai Yau Street, San Po Kong, Kowloon
- Regulator reference
- SBO-1218
ComNet Telecom (HK) Limited
Unified Carrier Licence- Address
- 25/F, CITIC Telecom Tower, 93 Kwai Fuk Road, Kwai Chung, New Territories, Hong Kong
- Regulator reference
- UCL-060
ComNet Telecom International Limited
SBO Class 3 (ISP; ETS)- Address
- 25/F, CITIC Telecom Tower, 93 Kwai Fuk Road, Kwai Chung, N.T
- Regulator reference
- SBO-0532
Company TTK Asia Limited
SBO Class 3 (ISP)- Address
- Unit 503, 5/F., Silvercord Tower 2, 30 Canton Road, TST, Kowloon
- Regulator reference
- SBO-1614
Computerline (Hong Kong) Limited
SBO Class 3 (IVANS)- Address
- Suite 1701-02, 17/F, FWD Financial Centre, 308 Des Voeux Road Central, Hong Kong
- Regulator reference
- SBO-1679
Concord Information Technology International Limited
SBO Class 3 (IVANS)- Address
- Flat/Room 905, 9/F., New Treasure Centre, 10 Ng Fong Street, San Po Kong, Kowloon
- Regulator reference
- SBO-1577
Coninet Communication Service Co., Limited
SBO Class 3 (ISP)- Address
- Unit 1022A, Beverley Commercial Centre, 87-105 Chatham Road South, Tsim Sha Tsui, Kowloon
- Regulator reference
- SBO-1939
Connet Limited
SBO Class 3 (ISP)- Address
- 22/F., China Online Centre, 333 Lockhart Road, Wan Chai, Hong Kong
- Regulator reference
- SBO-1253
Connex Technology Limited
SBO Class 3 (ISP)- Address
- West Wing 2/F, 822 Lai Chi Kok Road, Cheung Sha Wan, Kowloon
- Regulator reference
- SBO-1992
Console Connect (HK) Limited
Unified Carrier Licence- Address
- 39th Floor, PCCW Tower, Taikoo Place, 979 King’s Road, Quarry Bay, Hong Kong
- Regulator reference
- UCL-074
Continuous Technologies International Limited
SBO Class 3 (ETS)- Address
- Unit 2301-2306, 23/F, Prosperity Millennia Plaza, 663 King’s Road, North Point, Hong Kong
- Regulator reference
- SBO-1804
CONVERGE TELECOM LIMITED
SBO Class 3 (ETS)- Address
- Room 1115, 11/F., China United Plaza, No. 1008 Tai Nan West Street, Lai Chi Kok, Kowloon
- Regulator reference
- SBO-1396
Core Winner Co., Limited
SBO Class 3 (ISP)- Address
- Room 13, 27/F, Ho King Commercial Centre, 2-16 Fa Yuen Street, Mongkok, Kowloon
- Regulator reference
- SBO-1911
CouldLink Innovations Co., Limited
SBO Class 3 (ISP)- Address
- Room 32, 11/F, Lee Ka Industrial Building, No. 8 Ng Fong Street, San Po Kong, Kowloon, Hong Kong
- Regulator reference
- SBO-1946
CSL Mobile Limited
SBO Class 3 (MVNO)- Address
- 39/F, PCCW Tower, Taikoo Place, 979 King’s Road, Quarry Bay, Hong Kong
- Regulator reference
- SBO-1981
CTCSCI TECH LIMITED
SBO Class 3 (ISP)- Address
- Room 023, 9/F., Block G, Kwai Shing Industrial Building (Stage 2), 42-46 Tai Lin Pai Road, Kwai Chung, N.T., Hong Kong
- Regulator reference
- SBO-1906
CTG Server Limited
SBO Class 3 (ISP)- Address
- Flat 202, 2/F., Block B, Shatin Industrial Centre, 5-7 Yuen Shun Circuit, Shatin, N.T
- Regulator reference
- SBO-1910
CTM (HK) Limited
Unified Carrier Licence- Also registered as
- SBO Class 3 (ISP; ETS)
- Address
- 31/F, Tower Two Times Square, 1 Matheson Street, Causeway Bay, Hong Kong
- Regulator reference
- UCL-036; SBO-0770
Cyber Channel International Limited
SBO Class 3 (ISP; ETS)- Address
- Room C, 7/F, Sun Hing Steel Furniture Commercial Building, 55 Tong Mi Road. Tai Kok Tsui, Kowloon
- Regulator reference
- SBO-0305
Cypress Telecom Limited
SBO Class 3 (ISP)- Address
- Unit 2701, 27/F, 3 Lockhart Road, Wanchai, Hong Kong
- Regulator reference
- SBO-1427
Independent reference compiled from OFCA (Office of the Communications Authority) - Carrier Licences Enquiry (Unified/Mobile Carrier Licensees) and Services-Based Operator (SBO) Licences Enquiry, with registered addresses taken from the licence documents; service flags from DATA.GOV.HK 'List of SBO Licensees'; hotlines/websites from OFCA's consumer 'Telecommunications Services Providers' page for study and investigative use. Ministry of Cyber Affairs is not a government body and does not represent any listed provider. See the Hong Kong directory overview and the directory hub for other countries.