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The prefix +31 4557 serves the region of Heerlen.
Our database lists the carrier as "KPN".
Mapped location for +31 4557 is (50.8775239, 5.9815066).
Use this area-code page to access location, carrier, and prefix info for partial phone numbers.
Country: 🇳🇱 NL
Country Code: +31
Carrier: KPN
Prefix: 4557
Location: Heerlen
Coords: 50.8775239, 5.9815066
Area Code Page: +31 4557
Comments: Disabled for area-code pages
Example: +31 4557 *** ***
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+31 4557 is an area code/prefix that appears to be associated with Heerlen. It may be assigned to multiple phone numbers within that region.
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Carrier information for this prefix: KPN. In some cases multiple carriers may use similar prefixes.
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