Note:

We have validated the API.mdb and CRC.mdb files for the CTC series satellite network and encountered some critical errors related to the operating agency's use of the 999 symbol.

We kindly share the following details regarding the operating agency for your reference and further action.

Name:
Institute of Radio Spectrum Utilization and Technological Innovation

Address:
Fenghua Valley, Huawangcheng, Zhongguancun Science and Technology Park, Xiongan New Area, China (Hebei) Pilot Free Trade Zone, Xiongan Area