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Country flag of Vietnam blue arrow Country flag of United States

How to call Oklahoma, United States from Vietnam
Dial the following international dialing codes:


   00 + 1 + City Code + Local Number



  

How to make your international call How to call Oklahoma in United States from Vietnam:

00 - Exit code when making an international call from Vietnam
1 - US country code for inbound calls
00 + 1 + City Code + Local Number - International dialing code format

World time zone information World time zone information:

The time in Vietnam is now 19:04:02 PM (07:04:02 PM)
The time in Oklahoma United States is now (CLICK FOR TIME ZONES)

Calling cards Save on your call:



Mobile Country Codes Mobile codes:

To call a mobile phone in United States from Vietnam use the following dialing code format: 00 + 1 + The Number
Click here to search for another mobile country code.


The Oklahoma, United States area code chart below gives you the necessary information for calling Oklahoma cities. For international dialing instructions to Oklahoma, United States, use our drop down boxes at the top of this page or check out our easy-to-use country code search tool.
 
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Area Codes 121-150 (of 583)
Oklahoma Cities City Code
Comanche 580
Commerce 918
Concho 405
Connerville 580
Cookson 918
Copan 918
Cordell 580
Corn 580
Council Hill 918
Countyline 580
Covington 580
Coweta 918
Coyle 405
Crawford 580
Crescent 405
Cromwell 405
Crowder 918
Cushing 918
Custer City 580
Cyril 580
Dacoma 580
Daisy 580
Davenport 918
Davidson 580
Davis 580
Deer Creek 580
Delaware 918
Depew 918
Devol 580
Dewar 918
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