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ISD Codes for all countries and IDD Prefixes

International Dialing Codes for countries starting in "U"

We are pleased to present to you "ISD Codes" in a simple and easy to navigate format. Please make your selection below.

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For STD Codes of different cities of India, Click here


International Dialing Codes for countries starting in "U"

Country
City		 IDD Prefix ISD Country Code Time Difference-GMT
United Arab Emirates

Dubai
Abu Dhabi
Sharjah

 00

 

 

 971

4
2
6

 --

+4 hrs
+4 hrs
+4 hrs
Uganda
 
 

Kampaala

 000
000, 005 to Kenya
007 to Tanzania

 

 256
 
 

41

 --
 
 

+3 hrs
Ukraine 8~10 380 --
United Kingdom

London (Inner)
Birmingham
Manchester
Liverpool
Leeds
Belfast
Glasgow

 00

 

 

 

 

 44

171
121
61
51
132
232
41

 --

171
+1 hr
+1 hr
+1 hr
+1 hr
+1 hr
+1 hr
United States of America

New York
Washington DC
Chicago
Houston
Los Angeles
San Francisco
California
Miami

 001

 

 

 

 

 1

718
202


312
713
213
415
818
305

 --

-5 hrs
-5 hrs


-6 hrs
-6 hrs
-8 hrs
-8 hrs
--
-5 hrs
US Virgin Islands 011 1-340 --
Uruguay 00 598 --
Uzbekistan

Tashkent
Venezuela
Caracas

 8~10

 

 

 998

371
58
2

 --
Note : IDD Prefix is the International Direct Dial code you need to use at the start of an international call. The IDD code is followed by the country ISD code you are calling

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