TRAI Spam Call Rules 2026: The Telecom Regulatory Authority of India (TRAI) has strengthened its framework for controlling unsolicited commercial communications (UCC), introducing AI/ML-based spam detection, tighter enforcement against repeat offenders, regulation of Application-to-Person (A2P) calls and new consumer appeal mechanisms.
TRAI on September 18, 2026 introduced the Telecom Commercial Communication Customer Preference (Third Amendment) Regulations, 2026, amending the Telecom Commercial Communications Customer Preference Regulations, 2018. The objective is to protect telecom users from spam while increasing accountability of telecom service providers, commercial senders and telemarketers.
The new regulations are particularly significant for telecom operators because AI-based detection will now become an integral part of regulatory enforcement rather than simply a tool for identifying potentially unwanted calls.
AI/ML Becomes Central to TRAI’s Anti-Spam Strategy
Major telecom service providers have already deployed AI and machine learning systems to identify suspected spam communications and alert customers.
TRAI had issued a direction on February 27, 2026 requiring operators to use AI/ML intelligence on suspected UCC for inter-operator information sharing and investigation of suspected spam senders. The requirement has now been incorporated into the regulations through Regulation 21A.
Under the new framework, telecom service providers must identify Calling Line Identifications (CLIs) that have a high probability of being used for unsolicited commercial communications and share this information with other operators.
This creates a more coordinated industry-wide approach to combating spam instead of relying exclusively on individual operator databases.
Five Flagged Numbers in 10 Days Can Trigger Investigation
TRAI has established a clear numerical trigger for stronger action.
If five or more CLIs associated with a sender are flagged within 10 days, telecom access providers will initiate further investigation and graded enforcement.
Possible actions include:
KYC re-verification;
physical verification;
barring outgoing telecom services; and
disconnection of telecom resources in cases involving repeated violations or misuse.
The five-CLI and 10-day thresholds provide telecom operators with specific parameters for identifying potentially large-scale spam operations.
At the same time, TRAI has protected legitimate regulated communications. Calls originating from special commercial communication numbering series including 140xx, 1600xx and 1601xx will not automatically be flagged as suspected spam.
TRAI Brings A2P Calls Under Regulatory Framework
Another major change involves Application-to-Person calls.
A2P calling allows applications, software platforms and automated systems to generate large volumes of voice calls. TRAI says this capability also creates potential for misuse through spam campaigns.
The amended regulations define A2P calls as voice calls initiated by an application, software system or automated platform without direct human dialing. This includes autodialing, robocalls and pre-recorded or artificial-voice technologies.
Every entity making A2P calls must now pre-declare its use of the technology to its telecom service provider and provide details of the CLIs that will be used.
An A2P call made without the required declaration will be treated as unsolicited commercial communication.
A2P Calls Face Termination Charge of Up to ₹0.05 Per Minute
TRAI has also introduced an economic deterrent against large-scale automated calling.
The Terminating Access Provider can levy a termination charge of up to ₹0.05 per minute on the Originating Access Provider for A2P calls.
However, A2P calls made using numbering series specifically designated for regulated commercial communications, as well as calls authorised by TRAI, will be exempt from the termination charge.
The measure increases the importance of correctly identifying and routing automated commercial traffic across Indian telecom networks.
Customer Inquiry Allows Commercial Communication for Only 7 Days
TRAI has clarified how companies can contact customers after receiving an inquiry.
A company can send commercial communications based on a customer’s inquiry regarding goods, products or services for only seven days from the date of the inquiry.
Importantly, the inquiry must be made in writing or through digital channels and must be retained by the sender in a verifiable form.
The provision is intended primarily to facilitate e-commerce and e-service platforms while preventing companies from treating informal or unverifiable interactions as long-term permission for marketing communications.
Consumers Get 15 Days to Appeal Spam Complaint Decisions
TRAI has introduced a consumer appeal mechanism for UCC complaints.
Consumers dissatisfied with the resolution of a spam complaint will have 15 days to file an appeal before the Appellate Authority.
Appeals can be submitted through channels already available for UCC complaints, including the TRAI DND App, telecom operator applications or portals, and calls or SMS to 1909.
The appeal provision gives mobile subscribers another route to challenge complaint resolutions without creating an entirely separate reporting infrastructure.
Three Complaints Plus AI Flag Can Trigger Action
TRAI is also lowering the effective threshold for action when consumer complaints are supported by AI-based detection.
Under the existing framework, action could be triggered when a sender generated five or more unique complaints within 10 days.
The amended rules introduce another trigger: action can be initiated when there are three or more unique complaints within 10 days and the sender’s CLI has also been identified by the telecom service provider’s AI/ML system as having a high probability of sending UCC.
This combination of consumer complaints and network intelligence could enable operators to identify high-risk senders more quickly.
Misused Headers and Templates Must Be Suspended Within 6 Hours
TRAI has imposed tougher timelines for addressing misuse of registered Headers and Content Templates.
An Originating Access Provider must suspend a misused Header or Content Template within six hours after becoming aware of the misuse.
The sender must subsequently take remedial action and file a complaint with the appropriate law-enforcement agency.
Penalties become significantly tougher when a telemarketer is responsible. In such cases, all telecom resources of the telemarketer across telecom service providers can be disconnected for one year, accompanied by blacklisting.
Call Management Apps Face New Restrictions
TRAI has also addressed the role of call-management and spam-identification applications.
Call Management Applications cannot blanket block, filter or spam-tag calls originating from numbering series designated by TRAI or the Central Government for commercial communications.
These include 1600xx/1601xx numbers for service and transactional calls and 140xx numbers for regulated promotional calls.
Consumers, however, retain the freedom to individually block or filter calls on their own devices.
Call-management applications that allow users to report communications as spam or junk must also transmit those reports to the DLT platform maintained by telecom access providers.
VNOs to Get Real-Time Access to DLT Systems
The amended framework also addresses Virtual Network Operators.
Network Service Operators will be required to provide VNOs with a real-time digital interface to the Distributed Ledger Technology platform and other systems required for regulatory compliance.
TRAI says this will address operational difficulties faced by VNOs in accessing the DLT infrastructure.
Key TRAI Spam Regulation Figures for 2026
The most important numbers from the amended regulations include five flagged CLIs within 10 days for investigation, three consumer complaints within 10 days combined with an AI/ML flag for accelerated action, an A2P termination charge of up to ₹0.05 per minute, a seven-day communication window following a customer inquiry, a 15-day period for consumer appeals, a six-hour deadline for suspension of misused Headers or Content Templates, and one-year disconnection and blacklisting for telemarketers responsible for specified misuse.
The amendments show how India’s anti-spam framework is shifting toward technology-driven enforcement. AI/ML detection, inter-operator intelligence sharing, tighter A2P controls and clearly defined enforcement thresholds give telecom operators a larger role in detecting and stopping unwanted commercial communications before they become persistent spam problems.
SHAFANA FAZAL
