What is the full form of ISD
Full form of ISD in English: International Subscriber Dialing, also known as International Direct Dialing (IDD). A person who can make an international telephone call without relying on a telephone operator uses this term.
All countries are provided with ISD. This is a special number. A subscriber needs to add this code before the person’s phone number to make any international call.
The special number or code must be added before the telephone number of the person to make an international call. Most international calls are dialed directly since the 20th century. When writing telephone numbers for international purposes, the international call prefix is ignored and the number must begin with a plus sign (+) along with the national calling code.
A plus sign indicates that the country code follows, and there might be a confirmation code to dial in the country of origin.
ISD Code List
|United Arab Emirates||+971|
Other ISC Full Form
|Imperial Star Destroyer||Science Fiction|
|In Some Direction||Transportation|
|Increasing, Steady, or Decreasing||Mathematics|
|Individual Soldier Detector||Military|
|Information Services Division||Companies & Firms|
|Information Systems Division||Military|
|Inspectional Services Department||General|
|Instructional Support Department||Universities|
|Integrated Solutions Division||Companies & Firms|
|Interim Simulation Display||Transportation|
|Intermediate School District||Educational|
|Interstellar Services Department||General|
|Iscuande, Colombia||Airport Codes|
|Information Storage Device||Hardware|
|Income Support Division||State & Local|
What are ISD and STD?
STD: Stands for Subscriber Trunk Dialing. It was called when subscribers made long-distance calls without the help of operators. ISD: Stands for International Subscriber Dialing.
What is the ISD of India?
+91 is the India's ISD Code.