How Ukraine Launched an Effective Spam Call Blocking System?

In autumn 2025, Ukraine fully launched its system against mass advertising calls: citizens will no longer receive intrusive spam calls thanks to new rules adopted by the Cabinet of Ministers and the Ministry of Digital Transformation. The reform responded to years of complaints from Ukrainians inundated with unacceptable volumes of calls offering loans, insurance, marketing, and even fraudulent schemes.
Essence of the new rules and their mechanism
Government Resolution No. 761, enacted on October 2, 2025, for the first time gave mobile operators — Vodafone, Kyivstar, Lifecell — authority to automatically block numbers making mass advertising calls without subscriber consent. All unwanted calls from unknown companies without a contract or permission for communication are considered spam.
Spam call criteria
Operators check numbers based on a range of criteria:

• calls made without live communication (voicemail or recording);
• average call duration is under 60 seconds over the past 7 days;
• over 50% of calls go to different, unrelated numbers;
• the number cannot be called back;
• high volume of complaints from subscribers;
• less than 5% of calls from the number result in long conversations;
• number not listed in company registry or used only for calls—not SMS or internet.

How subscribers should act
Every citizen can personally report a spam call—simply use the mobile operator’s app or hotline:
Vodafone — 111 / 0-800-400-111 (+38 050 400 111 in roaming);
Kyivstar — 466 / 0-800-300-466 (or 105466# in roaming);
Lifecell — 5433 / 0-800-20-5433 (+38 063 5433 111 in roaming).
Also, you may contact the National Commission for Electronic Communications Regulation or the government hotline (1545), submitting an online request.
Effect and first results of the reform
Within weeks of enforcement, thousands of spam numbers have been blocked, and complaints about intrusive calls have sharply decreased. The advertising and call market is being transformed—now marketing campaigns require explicit consumer consent and compliance with new ethical standards.
Legal basis and application features
Resolution No. 761 is the first legal framework that both delegates blocking powers to operators and specifies action algorithms:

• companies calling clients must contract with the operator, registering official contact numbers;
• every call from an unauthorized number is automatically blocked as spam;
• vulnerable subscribers from active combat zones received privileges: their numbers won’t be blocked for unpaid services, and SIM cards won’t be canceled.

Assisting fraud protection
The new system minimizes phone scams by eliminating anonymous calls with spoofed numbers. Digital filtering features safeguard Ukrainians against schemes like “your son is at the police station,” “card blocked,” and prevent data leakage in mass calling.
Risks and debate
Initial critics highlighted possible abuses—risk of unjustified blocking of “legitimate” entrepreneurs or small businesses reaching out to clients from unofficial numbers. The Ministry of Digital and operators promised transparency, prompt dispute resolution, and quick unblocking in case of legal errors.
Outlook for the phone advertising market
Removal of spam calls will evidently transform telemarketing:

• companies must invest in legal channels—SMS, email, social media;
• business legal teams will strengthen controls over client database automation and advertising distribution;
• demand for consulting in communications law and remote advertising ethics will rise.

Conclusion
Blocking spam calls became a reality through new laws, operator technical integration, and rising digital literacy. Ukrainians receive an effective tool to combat unwanted calls, while business gains clear rules for transparent, safe, and ethical mobile advertising. Advancement of these standards and trust mechanisms between subscribers and companies will shape a new comfort level in digital Ukrainian communications.
Svitlana Krutorohova — attorney, Law Firm “WINNER”.
If you have questions or issues related to spam calls, protection of personal data, or legal handling of complaints, we recommend contacting relevant attorneys at the Law Firm “WINNER”.