How to query the attribution of telecom numbers?

1. Voice self-help hotline: call the self-help voice service hotline 1000 1 and follow the voice prompts; 2. Webmaster's Hall: Click [Online Business Hall] or [Pocket Business Hall] to inquire after logging in; (Path: Webroom Home-Help and Support-Channel Introduction-Common Number/Location Query; Office Home-Self-Service-Number Attribution Query) Log in to the "More"-"Number Attribution" client of the telecom business hall with your mobile phone for query. 3. SMS mode: you can write SMS 60 1 space+mobile phone number to be checked or "HMGSD"+mobile phone number to be checked and send it to 1000 1 to check the attribution of Tianyi mobile phone number for free. For more service benefits, click on "official website" customer service 220 below to answer your questions.