What's the telephone number for reporting the loss of Yixing social security card?

First call 12345 citizen card hotline or log on Yixing citizen card website to report the loss in advance. The pre-loss reporting period is 7 days, that is, it will be automatically released after 7 days of pre-loss reporting. The cardholder shall, within 7 days, bring his/her valid ID card to the citizen card service network to handle the written loss reporting procedures.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.