International area codes 621
Country Code + CITY AREA CODE + NUMBER
Which country code is 621? The area code for city is 621.
Please look country code, the area code and 621 phone code.
Start with the international code which is 00,and then dial the city code and the number.
For example: 81-138-864-8972. Tip: Country code 81，area code 138，and the number is 864-8972.
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