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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 18:02:29 PM (06:02:29 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 481-510 (of 583)
Oklahoma Cities City Code
Slick 918
Smithville 405 or 580
Snow 580
Snyder 580
Soper 580
Southard 580
Sparks 918
Spavinaw 918
Spencer 405
Spencerville 580
Sperry 918
Spiro 918
Springer 580
Sterling 580
Stidham 918
Stigler 918
Stillwater 405
Stilwell 918
Stonewall 580
Strang 918
Stratford 580
Stringtown 580
Stroud 918
Stuart 405 or 918
Sulphur 580
Sweetwater 580 or 806
Swink 580
Taft 918
Tahlequah 918
Talala 918
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We hope Country Calling Codes has helped you make your international call from Vietnam to the state of Oklahoma, United States. Why not bookmark this page, then tell a friend how easy it is to find international country codes and area codes at!

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