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| CIDR range | Maintainer | Description | Source |
|---|---|---|---|
| 150.242.158.0/24 | MAINT-CNNIC-AP | Internet Domain Name System Beijing Engineering Resrarch Center Ltd. | APNIC |
| 150.242.159.0/24 | MAINT-CNNIC-AP | Internet Domain Name System Beijing Engineering Research Center Ltd. | APNIC |
| 203.99.21.0/24 | MAINT-CNNIC-AP | Internet Domain Name System Beijing Engineering Resrarch Center Ltd. | APNIC |
| 2401:8d00:2::/48 | MAINT-CNNIC-AP | Internet Domain Name System Beijing Engineering Resrarch Center Ltd. | APNIC |
| 2401:8d00:14::/48 | MAINT-CNNIC-AP | Internet Domain Name System Beijing Engineering Research Center Ltd. | APNIC |