| 220.0.0.0/8 | WHOIS (APNIC) | Asia Pacific Network Information Center, Pty. Ltd. | AU |
| 220.128.0.0/12 | WHOIS (APNIC) | Data Communication Business Group, | TW |
| 220.136.0.0/13 | WHOIS (APNIC) | CHTD, Chunghwa Telecom Co.,Ltd. | TW |
| 220.136.0.0/13 | APNIC assigned | — | TW |
| 220.132.0.0/14 | WHOIS (APNIC) | CHTD, Chunghwa Telecom Co.,Ltd. | TW |
| 220.132.0.0/14 | APNIC assigned | — | TW |
| 220.130.0.0/15 | WHOIS (APNIC) | CHTD, Chunghwa Telecom Co.,Ltd. | TW |
| 220.130.0.0/15 | APNIC assigned | — | TW |
| 220.129.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.129.0.0/16 | WHOIS (APNIC) | CHTD, Chunghwa Telecom Co.,Ltd. | TW |
| 220.129.0.0/16 | APNIC assigned | — | TW |
| 220.130.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.131.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.132.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.133.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.134.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.135.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.136.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.137.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.138.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.139.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.140.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.141.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.142.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.143.0.0/16 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.128.128.0/17 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.128.128.0/17 | WHOIS (APNIC) | CHTD, Chunghwa Telecom Co.,Ltd. | TW |
| 220.128.128.0/17 | APNIC assigned | — | TW |
| 220.128.0.0/18 | WHOIS (APNIC) | Data Communication Business Group, | TW |
| 220.128.0.0/18 | APNIC assigned | — | TW |
| 220.128.64.0/18 | WHOIS (APNIC) | CHTD, Chunghwa Telecom Co.,Ltd. | TW |
| 220.128.64.0/18 | APNIC assigned | — | TW |
| 220.128.96.0/19 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.128.64.0/20 | BGP route | AS10126 Chunghwa Telecom Co., Ltd. | — |
| 220.128.80.0/20 | BGP route | AS10126 Chunghwa Telecom Co., Ltd. | — |
| 220.128.48.0/21 | BGP route | AS9505 Chunghwa Telecom Co., Ltd. | — |
| 220.128.56.0/21 | BGP route | AS10126 Chunghwa Telecom Co., Ltd. | — |
| 220.128.48.0/24 | BGP route | AS9505 Chunghwa Telecom Co., Ltd. | — |
| 220.128.51.0/24 | BGP route | AS33717 Chunghwa Telecom Global, INC | — |
| 220.128.55.0/24 | BGP route | AS23675 Taiwan Semiconductor Manufacturing Company, Ltd. | — |
| 220.128.72.0/24 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.128.77.0/24 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.128.79.0/24 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.128.80.0/24 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |
| 220.128.91.0/24 | BGP route | AS10126 Chunghwa Telecom Co., Ltd. | — |
| 220.135.103.0/24 | BGP route | AS3462 Chunghwa Telecom Co., Ltd. | — |