What number do I dial to call USA from South Korea?
Dial 001, then 1, then 3-digit area code + 7-digit local number. For example: 001 1 34 567 8923.
International dialing guide
Call USA from South Korea
Calling USA from South Korea follows a standard international format: dial the South Korea exit code, then USA's country code, then the local destination number.
Dial +1 numbers and any other international number from Qubicall.
Quick answer
How to dial: 001 + 1 + 3-digit area code + 7-digit local number
Example: 001 1 34 567 8923
If the saved contact starts with +, replace 001 with + on mobile. For manual dialing from landlines in South Korea, use 001.
Core calling info
- Destination country code
- USA: +1
- Origin exit code
- South Korea: 001
- Average call costs
- Landline about $0.018/min. Mobile about $1.050/min.
Time zone difference
USA and South Korea can have different local times, and offsets may change with daylight saving time. Check the destination city time before placing important calls.
Best calling window is usually business hours in USA, or early evening if you are calling family and friends.
Time zones vary by city, state, and daylight saving rules. Use destination local time before urgent calls.
How to Call USA from South Korea
Use this sequence when dialing from a phone keypad, calling card, or VoIP dialer that expects international access codes. It works for normal landline and mobile formats as long as the final local number is valid.
- Dial 001, the international exit code for South Korea.
- Dial 1, the country code for USA.
- Enter 3-digit area code + 7-digit local number. Remove any domestic trunk prefix when required, such as a leading 0 on many European numbers.
- Check the full number before calling. Example: 001 1 34 567 8923.
Number format notes
International numbers work best when saved in E.164 style, meaning +1 followed by the national significant number. From a mobile phone, that usually lets you tap the saved contact from any country without changing the prefix. From a landline or office phone in South Korea, the manual version is 001 before 1.
If the USA number was written for local use, check whether it includes a domestic trunk prefix. Many countries write landlines with a leading 0 for local calls, but that 0 is normally removed after the country code. North American numbers are different: keep the 3-digit area code and 7-digit subscriber number after country code 1.
Costs can differ between landlines and mobiles because carriers route those calls differently. If a number has moved between providers or uses a special service prefix, the billed rate can differ from a normal city landline. For predictable spend, check the country rate before long calls and confirm whether the number is landline, mobile, or premium.
Area codes in USA
Area codes below show common city examples. For international dialing, use the code shown in the table after +1 and before the local subscriber number.
| City | Area code | Dial example |
|---|---|---|
| USA landline | 1 | 001 1 34 567 8923 |
| USA mobile | 1 | 001 1 777 777 7777 |
| International format | 1 | 001 1 34 567 8923 |
FAQ
What time is it in USA when it's 9am in South Korea?
When it is 9:00 AM in South Korea, the time in USA depends on the exact cities and daylight saving rules. Use live local time for the destination before calling.
How much does it cost to call USA from South Korea?
On Qubicall, guide rates for USA are about $0.018/min to landlines and $1.050/min to mobiles. Final cost depends on destination number type and current rate table.