To find out the SIM holder and telephone number

If we have a SIM whose owner we do not know, we can, in full compliance with the law, use the tools made available by the various telephone operators and, in the case of SIMs that are not accessible online, use one of the sites indicated to retrieve public information shared online, so you can discover the owner of the SIM yourself.

We have collected the procedures for this here How to find out who a SIM is registered to in our possession for years; if, however, we are looking for the owner of a SIM that is certainly not registered in our name, we will have to rely on the (few) tools available online to try to trace the legitimate owner (who may have lost the SIM following a loss or theft), with all the risks involved (if there is a complaint about the theft of the SIM the risk is enormous).

READ ALSO: Which operator is a mobile number from

1) Owner check with the operator

To check the owner of the SIM we can use the management page of the operator to which it is associated. We then check the operator symbol on the surface of the SIM and open one of the sites below:

• TIM
• Vodafone
• WindTre
• Fastweb
• PosteMobile
• Very Mobile
• To. Mobile

Once we have chosen the SIM operator’s website, we log in using the telephone number on the SIM or username and password; if we don’t remember it, we can start a recovery procedure via the email used during registration.

Inside the personal page we open the information on the SIM in our possession or on the account registered on the portal, so as to find out who a SIM is registered to. In the information sheet we will be able to obtain the personal data and the identity card associated with the SIM in use.

Let’s remember that the access data o the personal data may be different from the identity card provided: in the case of SIMs provided to minors, the document of one of the parents must be provided in order to register the SIM.

2) Holder check with Truecaller

If the SIM is not accessible through the operators’ personal pages, we can try to enter the telephone number on it on the site TrueCaller.

On this site we will be able to start a search with the telephone number present on the SIM, so as to be able to trace the owner or last user of the same. The service is quite reliable, but we will still have to be lucky enough that the previous user has at least once used the services associated with it or has installed the Truecaller app at least once.

3) Check name with Who’s calling?

Another service similar to TruCaller to find out who a SIM is registered to is Who’s calling?

Also in this case we will simply have to enter the telephone number associated with the SIM in the text field and start the search; if in the past the SIM has been used for the site’s app services or reported as a jammer’s number, it will appear as a search result.

4) Holder check with Dive3000

Another site where you can search for telephone numbers associated with SIMs is Dive3000known as the true “mobile phone directory.”

All we have to do is access the service via a free account (which we can also create on the spot) and check if the number of the SIM in our possession is present in any list.

5) Search Social networks and search engines

If the previous methods did not allow us to know who a SIM is registered to, we can try the last resort, inserting the telephone number associated with it into Google or in the search bar of a social network (such as Facebook).

If the owner or last user of the SIM has associated it with an activity or service indexed by Google, on any site with public information or on Facebook Messenger (by setting privacy to Publish), we will be able to trace him easily, also obtaining his name and surname (we can also contact him to find out if he is really the owner of the SIM or just one of its users).

If we can’t find anything, we can also broaden the search to other search engines such as Bing, Yahoo o DuckDuckGoas indicated in our guide on Best private search engines.

Conclusions

Know who a SIM is registered to without damaging the privacy of an unknown person it’s quite difficult (and the opposite would be quite strange): we have only proposed the safe methods that we can try to use on our own SIMs (which we didn’t know existed) or on the SIMs of a relative or friend.

If we want to recognize unknown numbers that continuously call our smartphone, we advise you to read our guides on how Recognize unknown numbers and know who calls us on the phone e Whose cell phone number did you call?.

If we want to act with a filtering system capable of blocking call center numbers or serial nuisance numbers, we invite you to read the suggestions proposed in our article on how Block unwanted commercial calls on landlines and mobiles.