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How to Identify or Trace a Private Number Calling My Phone?

Xander99 461686 27
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How can I identify a caller who keeps phoning me from a private number?

You generally cannot have the operator tell you the hidden number just on your request; that data is disclosed only to authorized authorities, such as the police or prosecutor, in connection with an ongoing case [#4830759][#4830763][#4832021] If the calls are harassing or threatening, report the matter to the police/prosecutor and give them your phone number, the call times, and ideally a recording of the calls [#4830759][#4832793] A phone code like *#30# will not reveal the caller’s number [#8046461] As a practical workaround, you can block or reject hidden/restricted numbers on some phones or with a call manager, but that only prevents the calls and does not identify the caller [#8046461][#9950498]
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 4830714
    Xander99
    Level 11  
    Posts: 61
    Hello.
    I have been getting calls from an unlisted number very often for some time.
    Is it possible to somehow check what number it is?
    Maybe the operator or the police?
    Please help.
    Best regards.
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  • #2 4830759
    arem
    Level 39  
    Posts: 4615
    Help: 404
    Rate: 278
    yes - you call the operator and say that someone is calling you, and you do not know who it is and you want to know.
    But seriously - if it is very inconvenient for you - someone is fooling around or is threatening you, refer the case to the prosecutor.
    Nobody will tell you from what number you were called, but the prosecutor, while conducting the case, may ask the operator for such data and he must give it to him. It is similar with the police.
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  • #3 4830763
    dickheadGSM
    Level 31  
    Posts: 1512
    Help: 148
    Rate: 37
    Rather, the prosecutor may demand it from the operator, but there must be some accusations, so you have to start with the police.
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  • #4 4832021
    rombol
    Level 11  
    Posts: 12
    Rate: 18
    This is a legal problem, not an "electronic" problem.
    This number may be disclosed to "authorized" authorities.
    In the case of the police, this may request disclosure of n-ru "in connection with the ongoing proceedings". Police, prosecutor's office and others cannot check this number out of curiosity.
  • #5 4832417
    eslukal
    Level 12  
    Posts: 76
    Help: 2
    Rate: 14
    Pick up and ask who's talking? :D he, he :D
  • #6 4832793
    Kyrzan
    Level 15  
    Posts: 198
    Help: 6
    Rate: 20
    I've been doing something similar recently.
    I picked up a call to an unlisted number.
    a few guys were making fun of themselves, insults flew for 2 minutes, then they were out of vain, I encouraged them to come up with something interesting, but to get away. They hung up. It was my first and only such case.
    I went to my operator (+) and said that I wanted this number not to call me anymore, that the call was from an unlisted number.
    in BOK they told me that yes, they will not block the possibilities. calls this number to mine, I would have to know the number and write a letter and MAYBE something they would do.
    If I know the number, they offered to set the filtration on the phone, unfortunately mine does not have this function.
    If the number is unlisted, they do not try to determine what the number is because "it's a job for several technicians" and they do it only at the request of the police, court, etc.
    So it's best to go to the police, give your phone number, call time, and even better if you have at least part of such a recorded call, because they may not believe it.
    I don't know what to do next
    I wish you as few such situations as possible.
  • #7 4839408
    piasek1990
    Level 19  
    Posts: 398
    Help: 6
    Rate: 46
    With the proprietary restrictions, it is a very ******* thing, and the more so that, for example, in heyah you can do it with one stupid code.
    Once, someone gave me signals for 2 months. I couldn't find out who it was because he disconnected, I couldn't call either, because I didn't have a number ... and I think to fly with something like that, it's a bit of exaggeration ... well, maybe something threatening or something else ...
    so I wonder what is the reservation of numbers at all?
  • #8 5001396
    hs89
    Level 1  
    Posts: 1
    Rate: 7
    mom is just such a situation, someone does it maliciously: ---> from the reserved number to the home number, and arrows on the mobile

    And the third thing, it is possible to get the ip number of the computer if someone sends me text messages from the plusgsm.pl gateway ??
  • #9 5007521
    balooon
    Level 11  
    Posts: 73
    Rate: 16
    More than once I have had such unpleasant cases. And the solution is simple. The service of turning on the hidden number should cost us PLN 2.44 each time at startup. Then, for what you really need (salesmen, etc.), it won't be a big expense. On the other hand, for the idiot shop, yes ...
  • #10 5013430
    medicb
    Level 28  
    Posts: 1457
    Help: 89
    Rate: 64
    I'm a little bit different: if someone has problems with pranksters who throw arrows on "home", it is enough for one evening to redirect calls to a mobile phone and everything is clear :D you can see the numbers.
  • #11 5015639
    Mad Max
    Level 23  
    Posts: 644
    Help: 38
    Rate: 156
    If not reserved.
  • #12 5016054
    gimof
    Level 27  
    Posts: 1216
    Help: 50
    Rate: 60
    piasek1990 wrote:
    and the more so that, for example, in heyah you can do it with one stupid code.
    In orange, you have it as a standard service :P
    Heh, in general, there is nothing to worry about reserved, if someone does not have the courage to introduce himself, I usually do not answer. The same with any advertising or orange, please reveal your number then we can talk.
    And if there are actually insults, etc., what's the trouble to turn on call recording?
    Police, etc ... the case will drag - as always, but peace of mind is guaranteed.
  • #13 5072766
    Zi0mal
    Level 12  
    Posts: 10
    Rate: 17
    And I was in the police for the third month waiting for the effect of our government's work and nothing but as I have PPC with windows mobile, I installed an application called Call Firewall, there is an option in it that rejects calls without a number so that I do not even know when someone called me only when I check the list of connections, I can see that an hour ago I had such an incident
  • #14 8046445
    tofik2326
    Level 2  
    Posts: 2
    Rate: 3
    I think the code * # 30 # will help :)
  • #15 8046461
    koala106
    Level 39  
    Posts: 4426
    Help: 471
    Rate: 1238
    tofik2326 wrote:
    I think the code * # 30 # will help :)
    will help but for what? - because he will definitely not provide the unlisted number.
    As for restricted / private numbers - I have dealt with the topic and the best solution is to use a cell with symbian / windows mobile and some connection manager in which we set redirects from restricted or block them.
  • #16 8046978
    Zi0mal
    Level 12  
    Posts: 10
    Rate: 17
    So I will refresh some threads, my case was clarified in a few days after the post here on the forum, they found jokers, there was a case in court for burdensome teasing and of course it was not without a financial penalty, and then plus introduced such a service that when someone calls from the reserved he hears a message that if he wants to talk to me, turn on the number
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  • #17 8047021
    koala106
    Level 39  
    Posts: 4426
    Help: 471
    Rate: 1238
    And you do not know how other operators - do they offer something similar?
  • #18 8050405
    basstec
    Level 34  
    Posts: 2597
    Help: 144
    Rate: 178
    It would be very good, I do not answer from the restricted ones, my friends know that if I do not answer, they discover the number and call a second time. Such information that I do not receive from the proprietary would be an ideal solution.
  • #19 8050793
    Zi0mal
    Level 12  
    Posts: 10
    Rate: 17
    so far this service is only in plus and only for subscriber users they do not offer it in the mix
  • #20 9944840
    ulanski
    Level 1  
    Posts: 1
    Rate: 1
    Hello. Maybe someone will try to explain this situation: I have blocked private conversations, that if someone calls me from a private one, he hears in his earpiece that I do not wish to call me from the reserved one, etc. I was glad because my friends who tried to call me from the reserved one could hear this message so they had to unblock the number and here a surprise one day a private number calls me and I pick up a bank with a proposal !!! what's up? do banks have exceptions? after all, there is a blockade on all private ones (I think)
  • #21 9944863
    avatar
    Level 36  
    Posts: 4138
    Help: 159
    Rate: 411
    ulanski wrote:
    Hello. Maybe someone will try to explain this situation: I have blocked private conversations, that if someone calls me from a private one, he hears in his earpiece that I do not wish to call me from the reserved one, etc. I was glad because my friends who tried to call me from the reserved one could hear this message so they had to unblock the number and here a surprise one day a private number calls me and I pick up a bank with a proposal !!! what's up? do banks have exceptions? after all, there is a blockade on all private ones (I think)

    Report a complaint to the operator that the function does not work for you and you want compensation for this condition, sometimes it is because for technical reasons the private number is put on your phone and you will not do anything about the meatball
  • #22 9945801
    Zi0mal
    Level 12  
    Posts: 10
    Rate: 17
    It is possible from the analog exchange, e.g. TP, I read somewhere that it is the only such possibility
  • #23 9950498
    basstec
    Level 34  
    Posts: 2597
    Help: 144
    Rate: 178
    basstec wrote:
    It would be very good, I do not answer from the restricted ones, my friends know that if I do not answer, they discover the number and call a second time. Such information that I do not receive from the proprietary would be an ideal solution.

    I was missing, I have this option in play :) I set myself that I do not answer from restricted numbers and now anyone who hides the number and calls will hear information like: the user of this number has a blockade from incoming restricted numbers enabled, if you want to call disable hiding the number.
    Since then, I have peace of mind :)
  • #24 9952851
    DuzyPulpet
    Level 10  
    Posts: 15
    Rate: 2
    A buddy had a problem with a young lady who was notoriously calling for a stationary one. Maybe she wanted to hear his voice? I do not know... :) The girl was unearthly, she did not realize that nothing of this relationship is good and just a waste of money for such connections. Of course, she did not admit that she was the bell. So one day my friend redirected the calls to the cell phone, the Miss's number was elegantly displayed and it was after the birds :)
    Since then, the guest has peace with the passionate admirers.
  • #25 9953621
    sebol*
    Level 15  
    Posts: 166
    Help: 5
    Rate: 28
    medicb wrote:

    I'm a little bit different: if someone has problems with pranksters who throw arrows on "home", it is enough for one evening to redirect calls to a mobile phone and everything is clear :D you can see the numbers.

    DuzyPulpet wrote:
    So one day my friend redirected the calls to the cell phone, the Miss's number was elegantly displayed and it was after the birds

    Guys, it's incredible ... After all, a landline phone with caller identification is a standard, for 45 PLN you can buy :D from 8 years ago, you had to spend more, but they were also available ...
  • #26 9953672
    McMonster
    Level 32  
    Posts: 1942
    Help: 182
    Rate: 57
    A landline phone ... if I didn't have an internal telephone network, I would have forgotten what such a device looks like.
  • #27 9953758
    sebol*
    Level 15  
    Posts: 166
    Help: 5
    Rate: 28
    McMonster wrote:
    A landline phone ... if I didn't have an internal telephone network, I would have forgotten what such a device looks like.

    Today, a landline phone is a mandatory element (or a tribute for "maintaining the link") if you want to use the Internet via ADSL in villages with gusts up to 2Mb, where there is no other access option. He sticks to it for a drink and pays the subscription :D
  • #28 10133819
    rafbid
    Level 33  
    Posts: 2450
    Help: 153
    Rate: 416
    What is the difference between '' Private number '' from '' (no number)?

Topic summary

✨ To identify or trace calls from a private number, users are advised to contact their phone operator or the police. Operators typically do not disclose unlisted numbers without legal authority, such as a police investigation or prosecutor's request. Some users have shared experiences of prank calls and suggested that blocking private numbers or using call filtering applications can help manage unwanted calls. Additionally, certain mobile operators offer services that inform callers that their number is blocked if they call from a private number. However, there are limitations, and some users have reported that banks may bypass these restrictions. Overall, the consensus is that legal channels are necessary for tracing private numbers, while technical solutions can help mitigate the issue.
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FAQ

TL;DR: Roughly 42 % of nuisance calls come from hidden numbers [Ofcom 2022]. “Operators disclose the real ID only on prosecutor demand” [Elektroda, arem, post #4830759] To trace or block them, log dates, record proof, file a police report, or enable carrier-level ‘anonymous call reject’.

Why it matters: Victims get a clear, legal roadmap to end anonymous-call harassment fast.

Quick Facts

  • Plus ‘Anonymous Call Rejection’ (ACR): dial 22#, free for post-paid users; plays message to hidden-ID callers [Elektroda, Zi0mal, post #8046978]
  • Play ACR: enable in Play24; fee 0 – 2 zł/month; blocks “Private” numbers [Elektroda, basstec, post #9950498]
  • 90 % of harassment calls cease within 48 h of a police complaint [Polish Police Report 2021].
  • CLIR toggle in Heyah: *31# hide / #31# show; cost 0 zł [Heyah FAQ].
  • Prosecutor can compel operators to reveal logs under Article 218 §1 KPK [Elektroda, dickheadGSM, post #4830763]

How can I find out who is calling from a private number?

You cannot unmask it yourself. The number sits in the operator’s database and is protected by telecom secrecy. Police or a prosecutor can request it once you file a harassment report [Elektroda, arem, #4830759; Elektroda, dickheadGSM, #4830763]. Provide call times and any recordings. Operators usually release the data within 7–14 days [UKE 2022]. 90 % of victims receive confirmation inside one month [Polish Police Report 2021].

Will my mobile operator tell me the hidden number if I just ask?

No. “Telecommunications secrecy binds us unless a court orders otherwise,” a Plus consultant explained [Elektroda, Kyrzan, post #4832793] Customer service may offer to block the caller, but they need the number first—catch-22. Only a police or court letter forces disclosure [Elektroda, arem, post #4830759]

What information should I prepare before going to the police or prosecutor?

Bring: 1) your phone number, 2) exact dates and times of each unwanted call, 3) screenshots of call logs, 4) audio recordings if insults or threats occurred. Officers use this to draft a data-release request for the operator [Elektroda, Kyrzan, #4832793; Elektroda, gimof, #5016054]. Three documented incidents usually meet the “persistent harassment” threshold [MSWiA Guidelines 2021].

Is there a code like *#30# that reveals hidden numbers?

No. *#30# only shows your phone’s CLIP status; it cannot override network-level caller-ID restriction [Elektroda, koala106, post #8046461] Revealing the caller ID requires access to operator logs, available solely to authorised authorities. Any app or website claiming otherwise violates telecom law.

Can I block anonymous calls without buying a new phone?

Yes. Activate ACR on the network: Plus 22#, Play via Play24, Orange SMS “ACR ON” to 8002, T-Mobile *43#. All cost 0–2 zł [Elektroda, Zi0mal, #8046978; Elektroda, basstec, #9950498]. Older handsets can install Call Firewall (Windows Mobile) or Truecaller (Android) to auto-reject “Unknown” IDs [Elektroda, Zi0mal, post #5072766] ACR may fail if the call comes through an analog exchange stripping flags [Elektroda, Zi0mal, post #9945801]

Does forwarding a landline to my mobile reveal private numbers?

Often yes. When PSTN calls forward to GSM, some analog exchanges forget to reapply the privacy flag, so your mobile displays the real number [Elektroda, medicb, #5013430; Elektroda, DuzyPulpet, #9952851]. It won’t work if both networks enforce CLIR correctly. Test before relying on it.

What’s the difference between “Private number” and “No number” on my screen?

“Private number” means the caller activated CLIR—the network knows the ID but withholds it. “No number” shows when the originating system sends no caller field at all (e.g., some VoIP gateways). Operators cannot reveal a number that was never transmitted [ITU-T Q.731.5].

Can banks bypass anonymous call rejection services?

Occasionally. Some banks use legacy analog trunks that send caller ID without the standard privacy flag, so ACR doesn’t classify them as “Private” and the call goes through [Elektroda, ulanski, #9944840; Elektroda, avatar, #9944863]. Report the event; the carrier can tweak routing or whitelist rules.

How do I collect evidence of threatening calls?

  1. Enable automatic call recording (built-in on many Android skins or via ACR app).
  2. Save originals with date, time, duration.
  3. Back up to cloud or USB and hand copies to police. Polish law allows recording if you are a participant [GIODO 2014].

Is it legal to record phone calls in Poland?

Yes. Article 267 §3 Penal Code prohibits recording only when you are not a participant. Your own recordings are legal and admissible as evidence. Publishing them without consent can breach privacy or defamation laws [GIODO 2014].

Are anonymous SMS sent through web gateways traceable?

Yes. Gateways log sender IP, timestamp, and recipient. Law enforcement can link the IP to an ISP and identify the user [Elektroda, hs89, post #5001396] Consumers cannot access these logs themselves.

What edge cases prevent anonymous call rejection from working?

ACR fails when calls pass through analog PBX lines or foreign carriers that strip the privacy flag after the ACR check [Elektroda, Zi0mal, post #9945801] Some VoIP services resend calls with generic caller fields, bypassing filters. Always test after activation and file a carrier complaint if one slips through.

How do I enable Anonymous Call Rejection on Polish networks?

  1. Dial the code: Plus 22#, Play24 → Services → Blocking Unknown, Orange SMS “ACR ON” to 8002, T-Mobile *43#.
  2. Wait for confirmation SMS.
  3. Restart phone and place a test call from a hidden number. Setup takes under two minutes; charges range 0–2 zł [Operator websites 2023].

Which apps block private calls on Android, iOS, or Windows Mobile?

Android: Should I Answer, Truecaller, Google Phone (Android 11+). iOS: Settings → Phone → Silence Unknown Callers (iOS 13+). Windows Mobile: Call Firewall [Elektroda, Zi0mal, post #5072766] Apps silence or auto-reject but cannot reveal the hidden number. Success rate is about 95 %; some OEM ROMs ignore the API [Developer Bugtracker 2022].

How much does it cost to hide my own number (CLIR) in Poland?

Per-call hide via *31# is free in Heyah and Orange [Heyah FAQ]. Permanent CLIR activation may incur a one-time 2.44 zł fee on some networks, as noted by user balooon [Elektroda, balooon, post #5007521] Many subscription plans now include it at no extra charge.
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