厌倦了陌生APP、网站要求提供手机号码进行注册、获取验证码，为了保护个人信息不想发送自己手机号。
以下亲测可用：
- 国内免费临时手机号：
https://yunduanxin.net
https://www.materialtools.com
https://www.materialtools.com/SMSContent/1 - 国外免费临时手机号：
https://zh.mytrashmobile.com（中文）
https://ch.freephonenum.com（中文）
SMSReceiveFree：https://smsreceivefree.com
Receive SMS Online for FREE：https://www.receive-sms-online.info
Receive a SMS Online：https://receive-a-sms.com
Receive SMS online for Free：https://sms-online.co/receive-free-sms
Receive-SMS：https://receive-sms.com
Receive FREE SMS online：http://receivefreesms.com
RECEIVE SMS ONLINE：https://www.receivesmsonline.net
Free Online Phone：https://www.freeonlinephone.org
Receive SMS Online：http://receive-sms-online.com
https://receive-sms.com
http://sms.sellaite.com
https://www.receivesms.co
http://receiveonlinesms.biz