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Our database confirms that +420 3528 is assigned to Karlovy Vary Region.
Carrier for this prefix: "O2 Czech Republic".
Geolocation for this prefix: (50.1753532, 12.8060863).
Use this area-code page to access location, carrier, and prefix info for partial phone numbers.
Country: 🇨🇿 CZ
Country Code: +420
Carrier: O2 Czech Republic
Prefix: 3528
Location: Karlovy Vary Region
Coords: 50.1753532, 12.8060863
Area Code Page: +420 3528
Comments: Disabled for area-code pages
Example: +420 3528 *** ***
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+420 3528 is an area code/prefix that appears to be associated with Karlovy Vary Region. It may be assigned to multiple phone numbers within that region.
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Carrier information for this prefix: O2 Czech Republic. In some cases multiple carriers may use similar prefixes.
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