Here’s a guide to understanding and using STD codes for the states of Northeast India. The region comprises eight states: Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim, and Tripura. We'll focus on Assam as an example, since it's the largest state in the region and home to Guwahati, a major metropolitan hub.

Calling a Landline Within India 📞

To call a landline in Assam, like one in its capital Dispur or other key districts such as Guwahati, Jorhat, or Dibrugarh, follow this dialing format:

  • Dial '0': This is the trunk prefix required for all long-distance calls within India.
  • Enter the STD Code: Next, dial the specific STD code for the city or district you're calling. For example, the STD code for Guwahati is 0361.  
  • Dial the Local Number: Finally, enter the local landline number.

The complete format is: 0 + STD Code + Local Number. For a call to Guwahati, it would be: 0-361-XXXXXXX.

Calling a Landline from Outside India ✈️

To call a landline in Assam from another country, you'll need the international dialing codes. Remember, you do not use the '0' prefix for international calls.

  • Dial the International Access Code: This is your country's exit code, which is often 00 or +.  
  • Enter India's Country Code: India’s country code is 91.
  • Dial the STD Code without the '0': Enter the city's STD code, but drop the leading zero. For Guwahati, you'd use 361.  
  • Dial the Local Number: Conclude with the local landline number.

The complete format is: +91 + STD Code (without '0') + Local Number. A call to Guwahati would look like: +91-361-XXXXXXX.