No, we don't recycle numbers. But just because we don't recycle our numbers doesn't guarantee that you will get a "clean" number from our service or any other carrier. Numbers, like IP addresses are a finite resource and they do get reissued eventually.
In any case, with NumberProxy, if you get a number that has some "history" you can just toss it and get a new one. They are designed to be ephemeral.
NumberProxy and Burner both offer similar services. The main differences are
Burner is a native iOS/Android app so your disposable number is tied to your cellphone. NumberProxy is a web based application so you can use any phone, or no phone at all.
NumberProxy accepts Bitcoin.
*NumberProxy has SIP support.
We feel that response so far from our users is that the two applications are unique and have some very different feature sets.
Right now we only have support for US and Canadian numbers, but you can call and receive calls world wide. We have been working on support for non-US phone numbers, what country specifically would you like to see?
Many users want to know if using NumberProxy allows you to use your phone anonymously, and the answer is no. NumberProxy was created to provide user-to-user privacy, meaning that if you call or text someone your primary number is not visible to the person you are communicating with and is not easily traceable. Full details can be found in our Terms of Service and Privacy policy, but these are the basics: Once a number expires or you manually toss it, it’s not easy for us to figure out much about you or your conversations, your associated phone number is removed from our active servers. We do keep backups of our data for 24 hours and should these records be subpoenaed, we will cooperate with law enforcement. NumberProxy is great if you are trying to protect your phone number from other people. If you are trying to protect your phone number or conversations from the police or equivalent, it’s probably best to seek another solution.