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Similarly, this has been observed in Spain as well
Annuaire inversé au Luxembourg — Derniers signalements de la communauté
Vérifiez des numéros luxembourgeois inconnus : signalements récents (Luxembourg‑Ville, Esch‑sur‑Alzette) et partagez votre expérience.
Appels inconnus au Luxembourg
Numéro luxembourgeois inconnu ? Des notes concises vous aident à juger appels/SMS. À Luxembourg‑Ville et Esch‑sur‑Alzette, on observe des rappels légitimes (livraisons, banque, rendez‑vous) et des vagues de robocalls/phishing. Les gammes mobiles 6xx et 800 (non géographiques/gratuits) donnent du contexte mais ne prouvent pas l’origine (portabilité/VoIP).
Vérification : rappeler via le numéro officiel (site/app), vérifier les notifications in‑app et ne jamais communiquer de codes à usage unique par téléphone. Utilisez les blocages appareil/opérateur en cas de répétition et laissez une note brève et factuelle pour aider les autres.
35213000
Harassment Call
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We were contacted at an inconvenient hour, 3:15am, and then again just a few hours later, at 6:00 am, by this particular number
35213000
Unknown
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It seems I'm not the only one experiencing this issue, even locally
35213000
Unknown
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Nakon četiri poziva, još uvijek nije jasno koji je razlog njihovih poziva, niti je bilo moguće stupiti u kontakt s njima da bi se saznalo zbog čega zovu.
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Here in Croatia, we recieve similiar calls too, alot.
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We've experienced the same issue in Croatia, with this number calling us on three separate occasions
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Generally, the calls from this number are received once or twice daily, typically in the evening, but the caller hangs up without leaving a message, only a beep sound
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The same issue is occurring in Portugal as well
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This phenomenon is also observed in Croatia
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The experience in the Netherlands is no different, with repeated calls, particularly during nighttime hours, which seems utterly pointless
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Similarly, I had the same experience with constant beeping sounds
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Receiving frequent calls from numbers 35213000 and 21699600, with up to three calls daily, has become a regular occurrence in the Netherlands
35213000
Unknown
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Hungary has also been affected, with two calls received at 1:04am and 6:03am
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The incessant calls are proving to be a nuisance, with three instances reported, including one at an ungodly hour of 01:54, followed by another at 06:24, and yet another at 10:57, each time being greeted by a frustrating "beep" upon answering.
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A similar experience has been reported in Poland as well
35213000
SMS
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Interestingly, the same phenomenon has been observed in Germany, where a call was received at 4:40 at night, characterized by a repetitive beep sound
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Nighttime calls are persistant in Russia too, alot of anoying calls all nite :(
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My phone number is also affected by this issue
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Norway is where we resides, and recieved alot of random calls from this number, when we pickup, all we hear is a beep, and if we try to call back, a person is on the other end speaking somthing we cant understand
35213000
SMS
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nighttime is when they usually call
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FAQ — Luxembourg
Comment vérifier un appel au Luxembourg ?
Utiliser le numéro officiel (site/app) ; éviter de rappeler le numéro inconnu ; vérifier les messages in‑app.
Les gammes prouvent‑elles l’origine ?
Non. Portabilité/VoIP rendent mobiles/non‑géographiques peu probants.
Schémas fréquents ?
Livraisons, rappels de banque, codes 2FA ; robocalls, hameçonnage colis/compte, démarchage scripté.
Que mettre dans un signalement utile ?
Type d’appelant, but, date/heure, indices ayant guidé votre décision.