Ocean Telemedia Limited
SBO Class 3 (ETS)- Address
- 6/F, Hung To Center, 94-96 How Ming Street, Ngau Tau Kok, Kowloon
- Regulator reference
- SBO-1748
ISP & Telecom Directory · Hong Kong
Hong Kong Telecom & ISP Providers Starting With O
Registered contact details for the 13 OFCA-licensed operators whose name begins with the letter O, 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 1–13 of 13 entries
Oceanblue Network Technology Limited
SBO Class 3 (ISP)- Address
- Room 11, 27/F., K. Wah Centre, 191 Java Road, North Point, Hong Kong
- Regulator reference
- SBO-1963
Octopus SmartNet Global Company Limited
SBO Class 3 (ISP)- Address
- Workshop 60, 3/F., Block A, East Sun Industrial Centre, No. 16 Shing Yip Street, Kwun Tong, Kowloon
- Regulator reference
- SBO-1958
Octopus Web Services Limited
SBO Class 3 (ISP)- Address
- 19H, Maxgrand Plaza, 3 Tai Yau Street, San Po Kong, Kowloon, Hong Kong
- Regulator reference
- SBO-1920
OGCLOUD LIMITED
SBO Class 3 (ISP)- Address
- Unit 1, 18/F, Nan Fung Commercial Centre, No. 19 Lam Lok Street, Kowloon Bay, Kowloon
- Regulator reference
- SBO-1902
One Link (HK) Technology Co., Limited
SBO Class 3 (ISP)- Address
- Room 12, 20/F, Ho King Commercial Centre, 2-16 Fa Yuen Street, Mong Kok, Kowloon
- Regulator reference
- SBO-1974
One Tone (Hong Kong) Limited
SBO Class 3 (ETS)- Address
- Room 1, 2/F, Hing Yip Commercial Centre, 272-284 Des Voeux Road Central, Hong Kong Hong Kong
- Regulator reference
- SBO-1339
OneAsia Network Limited
SBO Class 3 (ISP; teleconferencing)- Address
- 1/F., Legan Centre, No. 9 Wang Kwong Road, Kowloon Bay, Kowloon
- Regulator reference
- SBO-1631
Onenet HK Limited
SBO Class 3 (ISP)- Address
- Flat 259, 2/F, Beverley Commercial Centre, 87-105 Chatham Road South, Tsim Sha Tsui, Kowloon
- Regulator reference
- SBO-1613
Open Text (Hong Kong) Limited
SBO Class 3 (IVANS)- Address
- Room 1609-10, 16/F., China Resources Building, 26 Harbour Road, Wan Chai, Hong Kong
- Regulator reference
- SBO-1730
Orange Business Services Hong Kong Limited
Unified Carrier Licence- Also registered as
- SBO Class 1/Class 2 (local voice telephony); SBO Class 3 (IVANS)
- Address
- 17/F, Telecom House, 3 Gloucester Road, Wanchai, Hong Kong
- Regulator reference
- UCL-010; SBO-0028
Oriental Telecom (Hong Kong) Limited
SBO Class 3 (ETS)- Address
- Units A & B, 15/F., Neich Tower, 128 Gloucester Road, Wanchai, Hong Kong
- Regulator reference
- SBO-1689
Outblaze Limited
SBO Class 3 (ISP)- Address
- 28/F Landmark South, 39 Yip Kan Street, Wong Chuk Hang, Hong Kong
- Regulator reference
- SBO-0855
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.