International area codes 521
Country Code + CITY AREA CODE + NUMBER
Which country code is 521? The area code for city is 521.
Please look country code, the area code and 521 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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