Searching for a city name with its STD (Subscriber Trunk Dialing) code is a useful feature provided by various online tools and websites in India. It allows you to find the name of the city or town associated with a specific STD code.

Here are a few popular online tools and websites that offer this service:

1. BSNL STD Code Finder: This official website of Bharat Sanchar Nigam Limited (BSNL) provides an option to search for a city name using its STD code. You can enter the STD code and click on the search button to get the name of the city or town.
2. IndiaMART STD Code Finder: IndiaMART is an online marketplace that also provides a STD Code Finder tool on its website. You can search for a city name with the help of its STD code by selecting the state and city, and then entering the STD code.
3. Maps of India STD Code Finder: Maps of India is a popular online platform that provides maps, information, and resources related to India. Their STD Code Finder tool can also help you search for a city name with its STD code. You can enter the STD code and select the state and city to get the name of the city or town.
4. STDCode.org STD Code Finder: STDCode.org is a website that provides a comprehensive list of STD codes for cities and towns across India. You can search for a city name with the help of its STD code by entering the STD code and clicking on the search button.

These online tools and websites are easy to use and provide accurate results, making it convenient for you to find the city name associated with a specific STD code.