Exit Code ** - Singapore exit code to dial first when calling international
1 - US country code must be dialed next
Exit Code ** +
1 + Area Code +
Local Number - Overall dialing code format
** Exit Code - Singapore has multiple telephone carriers. Select your provider and country telephone code from the following list: 002 (M1), 001 (SingTel), 008 (StarHub)
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calling code for your international call from Singapore to United States. Why not bookmark this page and tell a friend about this site for the next time they need to lookup an area code or international dialing code.