可以做平时产品测试时使用，便于临时更换号码；也可作为日常生活注册一些不太必要使用真实手机号的站点，安全且保护隐私。

1、ReceivingSms
https://www.receivingsms.com

2、blacktel
https://www.blacktel.io

3、spoofBox
http://www.spoofbox.com

4、SmsReceiver
https://sms.ndtan.net

5、OnlineSIM
http://onlinesim.ru

6、Twilio
https://www.twilio.com

7、PdfLibr
https://www.pdflibr.com

8、SELLAITE
http://sms.sellaite.com

9、Receive SMS Online
http://receive-sms-online.com

10、Free Online Phone
https://www.freeonlinephone.org

11、RECEIVE SMS ONLINE
https://www.receivesmsonline.net

12、Receive FREE SMS online
http://receivefreesms.com

13、Receive-SMS
https://receive-sms.com

14、Receive SMS online for Free
https://sms-online.co/receive-free-sms

15、Free SMS Numbers Online
https://smsnumbersonline.com

16、Receive a SMS Online
https://receive-a-sms.com

17、Receive SMS Online for FREE
https://www.receive-sms-online.info

18、SMSReceiveFree
https://smsreceivefree.com