To call a mobile phone in United States from Guinea-Bissau use the following dialing code format: 00 + 1 + The Number Click here to search for another mobile country code.
The Washington, United States area code chart below gives you the necessary information for calling Washington cities. For international dialing instructions to Washington, 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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