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Suspicious number ranges and other observations

Suspicious number ranges

Number ranges used for ping calls are published by RTR on this page. You can use this information to block corresponding number ranges for incoming calls. All modern smartphones offer this option. This works either directly via the smartphone or suitable apps.

Instructions for blocking incoming calls:

For iPhones

For Android-Smartphones

Apps are also available for both operating systems with which phone numbers can be blocked to a greater extent. It is best to find out more directly in the Google Playstore or Apple App Store.

Number ranges and phone numbers that are currently suspected of being misused (e.g. for aggressive telephone advertising, dubious profit promises, etc.):

  • 0720882340  (+43720882340) - fake real estate company -  November 2020
  • 00441455394675 (+441455394675) - Online Trading - November 2020
  • 004316721439 (+4316721439) - Fraud attempts by a pretended electricity supplier - November 2020
  • 00447979664723 (+447979664723) - alleged lottery subscription - October/November 2020
  • 00441491907321 (+441491907321) - online trading - October/November 2020
  • 0720880571  (+43720880571) - fake real estate company - September 2020
  • 0720880880  (+43720880880) - fake real estate company - September 2020
  • 0720145XXX (+43720145XXX) - online trading - July 2020
  • +441519470448 - online trading - June 2020
  • +43136588462: Fraud attempts by a pretended electricity supplier (is abused by call ID spoofing)
  • +436645522998: is abused by call ID spoofing from abroad (see: http://www.i-system.at/ )
  • +4368110789718 - suspicious sweepstakes promises
  • +441516020XXX = Real estate fraud attempts
  • +44121818XXX = aggressive online trading
  • +43662281XXX - January 2020
  • +43 699 107 451 87 - August 2019
  • +43 699 107 451 80 - August 2019
  • 0720 347604 (+43 720 347604)
  • 0044 (+44) - Great Britain

Number ranges that are suspected of being used for ping calls:

  • 00256 (+256) - December 2020
  • 00257 (+257) - December 2020
  • 0037 (+37) - December 2020
  • 0038111 (+38111) - December 2020
  • 0041744 (+41744) - December 2020
  • 0041748 (+41748) - December 2020
  • 0079407 (+79407) - December 2020
  • 00216 (+216) - November 2019, July 2020, November 2020, December 2020
  • 00221 (+221) - November 2020
  • 00212 (+212) - November 2020
  • 00252 (+252) - November 2020
  • 00255 (+255) - November 2020
  • 00992 (+992) - June 2020
  • 00680 (+680) - June 2020
  • 00509 (+509) - March 2020
  • 00242 (+242) - March 2020
  • 00222 (+222) - November 2019
  • 00676 (+676) - March 2019
  • 004416045xxxx (+4416045xxxx) - February 2019
  • 00417427730xx (+417427730xx) - December 2018
  • 00685 (+685) - December 2018
  • 00265 (+265) - December 2018
  • 00248 (+248) - December 2018
  • 00236 (+236) - December 2018
  • 00229 (+229) - December 2018
  • 00211 (+211) - December 2018
  • 00241 (+241)
  • 00686 (+686)
  • 00882 (+882)
  • 00883 (+883)
  • 0720 270033

You can find more information on the different number ranges in our number search.

Status: December 2020

Profit promises

The registration office keeps registering alleged profit promises. Different variants are used. However, the method is always the same: Before the prize is handed over, the victims are asked to provide something in return: to pay fees, call expensive value-added numbers or disclose personal data.

Now there are increasing numbers of reports from those affected who have been informed that a free subscription to a competition has expired and will be charged. You have to call the premium rate number 0930/828678 to cancel the subscription now.

Scam calls - Suspected calls from support agents (Microsoft)

Topic: data theft, phishing, scam calls, Malware

More and more entries are being registered about annoying calls in which people (mostly in bad English) pretend to be employees of "Microsoft" and try to request personal data. One-time payments, subscriptions, but also the installation of applications are offered as part of the solution to an allegedly existing problem with you as a customer. We know that the phone numbers shown on the display are fake and that the subscriber behind the phone number shown is usually not the perpetrator (caller). Normal phone numbers are displayed, apparently in order not to arouse suspicion and to motivate people to take off.

Tips for dealing with such calls: Avoid contacting or cancel contact immediately. Do not call back the displayed number. Do not reveal any details about yourself or your data. If you, as a Microsoft customer, have followed the instructions for such a scam call, you should immediately uninstall all applications made in the course of the call. Try to cancel any payments you have made. Unfortunately, we have received reports that the harassment is repeated frequently. Therefore, if you are already being harassed and see unknown numbers on the display, it is best not to answer at all.

Microsoft itself offers customer support for these cases.

Wine polls

There is a growing number of reports of harassing calls asking you questions about your personal wine preferences. In the course of the phone call, they promise to send you a little "surprise", which is why they want to elicit your data, such as name and address.

In this context, however, we also generally recommend that you handle your personal data (telephone numbers and other contact details, but especially account details) carefully.

Further information can be found under Reporting office of phone number misuse.