India's CNAP Caller Name Rule: What Changes on Your Phone
From 1 November 2026, calls from unsaved numbers can show the caller's registered name on 4G and 5G networks. Here is what you will see, who is left out, and what to do.
When an unknown number calls, you have always had to guess who it is. India has now changed that. The Department of Telecommunications (DoT) has told mobile operators to show the registered name of the caller next to the number, using a service called Calling Name Presentation, or CNAP. It was due to start on 1 November 2026.
You do not need an app for this. The name comes from the records your telephone company already keeps for each connection.
What is changing
- CNAP is meant to be switched on by default on 4G and newer networks, including 5G. Users do not have to ask for it or install anything.
- Reports say the DoT circular is dated 13 October 2026 and that the rule is tied to a change in the legal definition of "calling line identification" so that it includes the caller's name.
- 2G, 3G and landline networks are not part of this first phase. The government has said it will look at them separately.
- The operator that the caller uses keeps a database linking names to numbers. The operator on the receiving side asks that database for the name when the call comes in.
- Operators must not keep the fetched name after the call ends.
What you will see on your screen
- A number saved in your contacts: the name you saved. Your own contact name always comes first.
- An unsaved Indian mobile number: the caller's registered name from their operator.
- An unsaved international number: the words "International Call".
- A business with an approved name: a verified trademark or GST-registered trade name.
- A caller who has switched on caller ID restriction (CLIR): no name is shown.
How it is different from Truecaller
Apps like Truecaller build their own databases from user reports and other signals. CNAP uses only the subscriber records held by telecom operators. The government has not said that CNAP will replace those apps. It also will not stop spam calls on its own.
Business callers
Companies with business or bulk connections can ask to show a "preferred name" instead of the name in their subscriber record. The name must be backed by a trademark registered with the Trade Marks Registry or a trade name registered on the GST portal, and the operator has to check the papers before approving it. The aim is to make real business calls easier to recognise and harder to fake.
Why this took years
The idea went through several steps before it became a rule:
DoT asked TRAI for advice
In March 2022, the DoT asked the telecom regulator TRAI to recommend how CNAP should work.
TRAI gave its recommendations
TRAI sent its recommendations on 23 February 2024, after talking to stakeholders. The first plan was to offer the service only on request.
The government asked TRAI to reconsider
On 26 September 2025, the DoT sent a back-reference asking TRAI to reconsider some points.
TRAI replied
TRAI sent its response on 28 October 2025. News reports say TRAI then supported making CNAP available by default.
The rollout order
In October 2026 the DoT told operators to start on 1 November 2026, after trials on 4G and newer networks.
What to do now
Check your network
If you are on 4G or 5G, you are in the first phase. If you are on 2G, 3G or a landline, you are not covered yet.
Update your phone
The government has asked phone makers to add support through software updates, and there is no official list of supported phones. If you see no names, check for an update or ask your operator.
Keep saving contacts
A name you saved always shows instead of the registered name.
Treat the name as a clue
A name on the screen is one more piece of information, not a guarantee.
Report wrong names
Operators must run a grievance system. If a name looks wrong, complain to your operator.
What most people miss
- The name belongs to the SIM, not to the voice. A call from a family member's SIM, or a company's SIM, shows the name on that record, which may not be the person speaking.
- Records can be wrong or out of date. The whole system relies on operator databases, so an old or mistaken record means a wrong name on your screen.
- No name can also mean something. Callers who use caller ID restriction, and callers from networks not yet covered, may show only a number.
- Old safety rules still apply. Never share an OTP, bank details or passwords on a call you did not expect, even if a familiar-looking name appears.
