First of all, you need to decide whether it's even worth trying to find the owner of the SIM card. Where did you find it? Did you find it somewhere that it could have just been lost, or was it in the trash? If it was somewhere that it looks like it had just been disposed of then it's really nor worth your time trying to find out who owned the SIM card and whether they want it back. If you found it on a sidewalk or on a counter somewhere, however, then maybe they really do need their SIM card back.
There are a couple of things you can do. First of all, you could put the SIM card into your own mobile phone. This way you will be given access to numbers and information from the phone that it was last used in. This could give you an insight into the individual that owned the phone and could give you a clue where to look and where to go. If you can't find any information that directly relates to the individual, however, then what you can do is get in touch with the people on the contact list and explain that you have found the SIM card. They will no doubt be able to tell you whose number this is and how you will be able to get in touch with them to give the card back.
Finally, you could try and find out the number of the sim card and speak to the mobile phone operator. They may give you some insight but the chances are they won't really be able to help, and the owner of the SIM card will have gone about getting a new SIM card anyway. Don't go too out of your way. It's probably worth just binning the SIM card and not taking it any further.
There are a couple of things you can do. First of all, you could put the SIM card into your own mobile phone. This way you will be given access to numbers and information from the phone that it was last used in. This could give you an insight into the individual that owned the phone and could give you a clue where to look and where to go. If you can't find any information that directly relates to the individual, however, then what you can do is get in touch with the people on the contact list and explain that you have found the SIM card. They will no doubt be able to tell you whose number this is and how you will be able to get in touch with them to give the card back.
Finally, you could try and find out the number of the sim card and speak to the mobile phone operator. They may give you some insight but the chances are they won't really be able to help, and the owner of the SIM card will have gone about getting a new SIM card anyway. Don't go too out of your way. It's probably worth just binning the SIM card and not taking it any further.
