ISO HK / HKG
Hong Kong
- Records
- 15
- Role unresolved
- 14
- MCC
- 454
- China Mobile Hong Kong Company Limited454-12, 454-13
- China Telecom Global Limited454-31
- China Unicom (Hong Kong) Operations Limited454-07
- China-Hongkong Telecom Limited454-11
- CITIC Telecom International Limited454-01
- Government use454-25, 454-26
- Hong Kong Telecommunications (HKT) Limited454-00, 454-02
- HuiYinBi Telecom (Hong Kong) Limited454-22
- Hutchison Telephone Company Limited454-03, 454-04
- Multibyte Info Technology Limited454-24
- SmarTone Mobile Communications Limited454-06, 454-15
- South China Telecommunications (H.K.) Limited454-382
- TP Hong Kong Operations Limited454-08
- VNET Group Limited454-21
- Webbing Hong Kong Limited454-35