How to call Illinois in United States from Guam:
1 - Guam exit code
1 + Area Code + Local Number - Overall dialing code format
Note: United States and Guam are both members of NANP (North American Numbering Plan) so when calling between these countries, 1 is used in place of the country exit code.
World time zone information:
The time in Guam is now 15:29:12 PM (03:29:12 PM)
The time in Illinois United States is now (CLICK FOR TIME ZONES)
Save on your call:
To call a mobile phone in United States from Guam use the following dialing code format: 1 + The Number
Click here to search for another mobile country code.
The Illinois, United States area code chart below gives you the necessary information for calling Illinois cities. For international dialing instructions to Illinois, United States, use our drop down boxes at the top of this page or check out our easy-to-use country code search tool.