| 223.0.0.0/8 | WHOIS (ARIN) | Asia Pacific Network Information Centre | AU |
| 223.197.0.0/16 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.0.0/16 | WHOIS (APNIC) | PCCW IMS Ltd (PCCW Business Internet Access) | HK |
| 223.197.0.0/16 | APNIC assigned | — | HK |
| 223.197.0.0/17 | WHOIS (APNIC) | Hong Kong Telecommunications (HKT) Limited Business Internet | HK |
| 223.197.64.0/18 | WHOIS (APNIC) | HKT Limited | HK |
| 223.197.64.0/19 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.96.0/19 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.104.0/23 | BGP route | AS4760 PCCW IMS Limited | — |
| 223.197.75.0/24 | BGP route | AS4760 PCCW IMS Limited | — |
| 223.197.77.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.79.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.80.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.82.0/24 | BGP route | AS4760 PCCW IMS Limited | — |
| 223.197.88.0/24 | BGP route | AS4760 PCCW IMS Limited | — |
| 223.197.89.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.90.0/24 | BGP route | AS4760 PCCW IMS Limited | — |
| 223.197.92.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.94.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.95.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.96.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.103.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.106.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.107.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.108.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.109.0/24 | BGP route | AS4760 PCCW IMS Limited | — |
| 223.197.110.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.112.0/24 | BGP route | AS132585 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.113.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.114.0/24 | BGP route | AS4760 PCCW IMS Limited | — |
| 223.197.115.0/24 | BGP route | AS135621 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.116.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.117.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.124.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.125.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.126.0/24 | BGP route | AS4515 PCCW IMS Ltd (PCCW Business Internet Access) | — |
| 223.197.66.96/27 | WHOIS (APNIC) | SIK SIK YUEN | HK |
| 223.197.64.224/28 | WHOIS (APNIC) | BUDDHIST HO NAM KAM COLLEGE | HK |
| 223.197.65.16/28 | WHOIS (APNIC) | RITONE JEWELRY INTERNATIONAL LIMITED | HK |
| 223.197.65.96/28 | WHOIS (APNIC) | ICOS VISION SYSTEMS LIMITED | HK |
| 223.197.65.160/28 | WHOIS (APNIC) | CHA TEXTILES LIMITED | HK |
| 223.197.66.48/28 | WHOIS (APNIC) | SAN WUI COMMERCIAL SOCIETY CHRISTIAN SCH | HK |
| 223.197.66.64/28 | WHOIS (APNIC) | CHAN'S CREATIVE SCHOOL | HK |
| 223.197.66.144/28 | WHOIS (APNIC) | TELESAVE (HK) LIMITED | HK |
| 223.197.67.16/28 | WHOIS (APNIC) | NEW CHINA ASSET MANAGEMENT (HK) LIMITED | HK |
| 223.197.67.32/28 | WHOIS (APNIC) | SILINK TRADING CO | HK |
| 223.197.67.144/28 | WHOIS (APNIC) | K & M MANAGEMENT LIMITED | HK |
| 223.197.68.64/28 | WHOIS (APNIC) | STAR CRUISES (HK) LTD | HK |
| 223.197.65.64/29 | WHOIS (APNIC) | WEST KOWLOON CULTURAL DISTRICT AUTHORITY | HK |
| 223.197.65.88/29 | WHOIS (APNIC) | SEA-AIR LOGISTICS (HK) LTD | HK |
| 223.197.65.192/29 | WHOIS (APNIC) | CONTINENTAL ENGINEERING CORPORATION | HK |
| 223.197.65.200/29 | WHOIS (APNIC) | THE HONG KONG INSTITUTE FOR PROMOTION OF CHINESE CULTURE LTD | HK |
| 223.197.66.80/29 | WHOIS (APNIC) | ACME METAL WORKS (INTERNATIONAL) LTD | HK |
| 223.197.66.160/29 | WHOIS (APNIC) | GARDENEAST MANAGEMENT LTD | HK |
| 223.197.67.0/29 | WHOIS (APNIC) | CHINALINK TRAVEL SERVICES COMPANY LTD | HK |
| 223.197.67.48/29 | WHOIS (APNIC) | SUCCESS FUTURES AND FOREIGN EXCHANGE LTD | HK |
| 223.197.67.56/29 | WHOIS (APNIC) | HONG KONG RESEARCH INSTITUTE OF TEXTILES | HK |
| 223.197.67.64/29 | WHOIS (APNIC) | PUYI OPTICAL LTD | HK |
| 223.197.67.72/29 | WHOIS (APNIC) | EUROPE GROUP HOLDINGS LTD | HK |
| 223.197.67.88/29 | WHOIS (APNIC) | SKYWARDS TRAVEL LIMITED | HK |
| 223.197.67.96/29 | WHOIS (APNIC) | SKYWARDS TRAVEL LIMITED | HK |
| 223.197.67.104/29 | WHOIS (APNIC) | IMC NETWORKS LIMITED | HK |
| 223.197.67.112/29 | WHOIS (APNIC) | K & M MANAGEMENT LIMITED | HK |
| 223.197.67.120/29 | WHOIS (APNIC) | K & M MANAGEMENT LIMITED | HK |
| 223.197.67.136/29 | WHOIS (APNIC) | C. C. P. INTERNATIONAL (HK) LTD | HK |
| 223.197.67.160/29 | WHOIS (APNIC) | ICA GLOBAL SOURCING LTD | HK |
| 223.197.67.168/29 | WHOIS (APNIC) | HONGKONG XIN SHENG JIN YE GROUP CO., LTD | HK |
| 223.197.67.176/29 | WHOIS (APNIC) | HENDERSON REAL ESTATE AGENCY LIMITED | HK |
| 223.197.67.184/29 | WHOIS (APNIC) | HENDERSON REAL ESTATE AGENCY LIMITED | HK |
| 223.197.67.192/29 | WHOIS (APNIC) | HENDERSON REAL ESTATE AGENCY LIMITED | HK |
| 223.197.67.200/29 | WHOIS (APNIC) | TROOPERS SECURITIES LTD | HK |
| 223.197.67.208/29 | WHOIS (APNIC) | PRUDENTIAL HOTEL | HK |
| 223.197.67.216/29 | WHOIS (APNIC) | CYJET INFORMATION TECHNOLOGY (H. K.) LTD | HK |
| 223.197.67.224/29 | WHOIS (APNIC) | NEW HIGGS BOSON LIMITED | HK |
| 223.197.67.232/29 | WHOIS (APNIC) | POWER-ONE LIMITED | HK |
| 223.197.68.128/29 | WHOIS (APNIC) | AFSC OPERATIONS LIMITED | HK |
| 223.197.68.136/29 | WHOIS (APNIC) | AFSC OPERATIONS LIMITED | HK |
| 223.197.68.152/29 | WHOIS (APNIC) | PROCO INTERNATIONAL COMPANY LIMITED | HK |
| 223.197.68.176/29 | WHOIS (APNIC) | CHINALINK TRAVEL SERVICES COMPANY LTD | HK |
| 223.197.68.192/29 | WHOIS (APNIC) | EV TRAVELS (HK) LIMITED | HK |
| 223.197.68.200/29 | WHOIS (APNIC) | ORANGEFIELD MANAGEMENT (HONG KONG) LTD | HK |
| 223.197.68.232/29 | WHOIS (APNIC) | MSOLUTION CONSULTANTS LIMITED | HK |