India to Enforce Caller Name Display on 4G and 5G Networks Starting November 2026
In a move aimed at curbing spam and fraudulent calls, the Indian government has mandated that telecom service providers display the registered name of callers alongside their phone numbers on incoming calls. The Department of Telecommunications (DoT) issued a circular directing providers to implement the feature on 4G and newer networks beginning November 1, 2026. The initiative, known as Calling Name Presentation (CNAP), is designed to help users identify unknown numbers and reduce the risk of falling victim to phone-based scams.
What is CNAP and How Does It Work?
Calling Name Presentation (CNAP) is a service that allows the recipient of a call to see the caller's name as registered with their telecom operator. Unlike third-party caller ID apps that rely on crowdsourced data, CNAP uses authoritative information from the telecom provider's database. When a call is placed, the network queries the caller's registered name and displays it on the recipient's device, provided the device and network support the feature.
The DoT's directive requires all telecom service providers to ensure that the calling name information is accurate and up-to-date. The service will be available on 4G, 5G, and future networks, but not on older 2G or 3G networks, which lack the technical capability to support the feature.
The Rationale: Tackling Spam and Fraud
India has been grappling with a surge in spam calls and financial frauds perpetrated through phone calls. According to government data, millions of spam calls are made daily, many of which are from telemarketers, scammers posing as bank officials, or fraudsters offering fake loans and jobs. The introduction of CNAP is expected to empower users to make informed decisions about answering calls from unknown numbers.
"The display of the caller's name will help subscribers identify calls from unknown numbers and take necessary action," the DoT circular stated. "This will also deter miscreants from making fraudulent calls."
The move aligns with the government's broader efforts to enhance telecom security, including the Sanchar Saathi portal, which allows users to report spam calls and trace lost or stolen mobile phones. The Telecom Regulatory Authority of India (TRAI) has also been working on regulations to curb unsolicited commercial communication.
Implementation Challenges and Privacy Concerns
While the initiative is commendable, its implementation is fraught with challenges. First, telecom operators will need to upgrade their networks and databases to support CNAP. This requires significant investment in infrastructure and coordination among operators to ensure interoperability. Second, the accuracy of the registered name depends on the data provided by subscribers. Many SIM cards are registered under names that may not reflect the actual user, especially in cases of corporate connections or multiple SIMs.
Privacy advocates have raised concerns about the potential misuse of caller name information. They argue that displaying the caller's name could expose personal information and lead to harassment or profiling. However, the DoT has clarified that the name displayed will be the one registered with the telecom operator, which is already available to the operator and is not considered private under existing regulations.
Another concern is the potential for spoofing. Fraudsters could manipulate the calling name to display a trusted entity's name, making scams more convincing. To mitigate this, the DoT has asked operators to implement measures to detect and prevent spoofing, including verifying the caller's identity before displaying the name.
Industry Response and Preparedness
Telecom operators have largely welcomed the directive but have sought clarity on technical and operational aspects. The Cellular Operators Association of India (COAI) has said that operators are committed to implementing CNAP but need a clear roadmap and adequate time to upgrade their systems. Some operators have already conducted trials of CNAP in select circles and are working on scaling it up.
Device manufacturers also play a crucial role. For CNAP to work, smartphones must support the feature. Most modern smartphones with 4G and 5G capabilities are expected to support CNAP through software updates. However, older devices may not be compatible, creating a digital divide.
What This Means for Users
For the average mobile user, the change will be visible from November 1, 2026. When receiving a call, the screen will display the caller's registered name along with the number. Users will still have the option to decline the call if they do not recognize the name. It is important to note that CNAP is not a replacement for caution; users should continue to be vigilant against suspicious calls and never share sensitive information like OTPs or bank details.
Global Context
India is not the first country to implement CNAP. Countries like the United States and some European nations have similar systems, such as STIR/SHAKEN in the US, which aims to combat caller ID spoofing. However, India's scale—with over a billion mobile subscribers—makes this one of the largest deployments of CNAP globally. If successful, it could serve as a model for other developing nations grappling with spam call issues.
The Road Ahead
The success of CNAP will depend on strict enforcement, technological readiness, and user awareness. The DoT has indicated that it will monitor compliance and take action against operators that fail to meet the deadline. As the November 2026 date approaches, users can expect more communication from operators about the feature and how to use it.
In the meantime, users are encouraged to report spam calls through the Sanchar Saathi portal and to use available tools to block unwanted numbers. The fight against spam and fraud is a shared responsibility, and CNAP is a significant step in that direction.
For more details, refer to the original article: India Mandates Registered Caller Name Display on 4G and Newer Networks From November 1
