These are temporary swedish phone numbers or also called swedish fake numbers. This means that they are only available for a short period of time. Some swedish phone numbers last for several months, others only a few days.
Please do not use such a swedish number for important text messages such as passwords, private text messages to friends or for phone verification on websites. Anyone could take over your account by reading the text messages of these swedish phone numbers.
If you do not live in sweden and still want to use a particular site or web that only accepts swedish users, it is necessary to have a swedish phone number to verify your account.
Most websites that require phone number verification have a limit on how often you can use a phone number. In this case it can happen that some of our swedish phone numbers are blocked. But this is not a big problem. Just use one of our other swedish phone numbers.