India's telecom regulator has intensified its fight against spam and unsolicited commercial communications (UCC), taking action against 1.83 lakh telecom resources
and blacklisting 263 senders during the first quarter of FY 2026-27. The enforcement measures were part of the Telecom Regulatory Authority of India's (TRAI) broader initiative to reduce unwanted promotional messages and improve consumer protection. According to the regulator's quarterly performance highlights released on Tuesday, the April-June 2026 period saw a significant number of complaints related to unsolicited commercial communications, prompting strict action against violators. Between April and June 2026, TRAI received 1.085 million complaints related to unsolicited commercial communications. Out of these, 0.553 million were considered actionable after verification. As part of the enforcement drive, 1,37,053 telecom resources were suspended for 15 days following their first violation. Repeat offenders faced much stricter penalties, with their telecom resources disconnected for one year. In addition, the regulator blocked 2,873 SMS headers and blacklisted 263 senders for one year. The action came during a quarter in which telecom networks handled an enormous volume of traffic, including 730.82 billion voice calls and 691.09 billion SMS messages. Despite the massive scale of communications, TRAI noted that the 1.085 million complaints translated to roughly 1.5 complaints for every one million calls made during the period. DND App Continues To Play A Key Role Consumer participation remained central to TRAI's anti-spam framework. The regulator said 89 per cent of all UCC complaints received by telecom service providers were submitted through the TRAI DND App. Subscribers can also register or update their Do Not Disturb (DND) preferences using their telecom operator's website or mobile application, or by calling or sending an SMS to 1909. However, TRAI highlighted that more than 1.12 billion mobile subscribers have not registered any DND preference. As a result, these users remain eligible to receive promotional communications from registered telemarketers and businesses. The regulator encouraged consumers seeking greater control over marketing calls and messages to register their preferences on the DND registry. AI Systems Flag Billions Of Suspected Spam Calls To strengthen spam detection, telecom service providers have deployed artificial intelligence-based monitoring systems that analyse communication patterns for suspicious activity. During the April-June quarter, these AI-powered systems identified 22.99 billion incoming calls and 1.44 billion incoming SMS messages as suspected spam. Since June 23, the mechanism has also generated over 2.43 lakh warning notifications to entities believed to be sending spam communications. TRAI has also standardised numbering categories to help consumers identify different types of calls. Promotional calls are routed through the 140xx numbering series, while 1600xx numbers are reserved for service and transactional communications, including messages from banks, financial institutions, insurance companies and government agencies. Calls originating from the 140 series are verified against customers' DND preferences before being delivered. The regulator said these initiatives are intended to strengthen enforcement, improve transparency and give consumers greater control over unwanted commercial communications while helping them recognise and avoid spam or potentially fraudulent calls and messages.
