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The prefix +31 1057 serves the region of Rotterdam.
Our database lists the carrier as "KPN".
The area code location is mapped at (51.9244424, 4.47775).
Searching a number prefix can reveal carrier and location info from Ringbat's database.
Country: 🇳🇱 NL
Country Code: +31
Carrier: KPN
Prefix: 1057
Location: Rotterdam
Coords: 51.9244424, 4.47775
Area Code Page: +31 1057
Comments: Disabled for area-code pages
Example: +31 1057 *** ***
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+31 1057 is an area code/prefix that appears to be associated with Rotterdam. 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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