Enter a number in E.164 format (for example +441952612345)
The prefix +31 2021 serves the region of Amsterdam.
Carrier for this prefix: "KPN".
Coordinates for +31 2021 are (52.3730796, 4.8924534).
Partial number searches match area-code pages like this — helpful if only the start of a number is known.
Country: 🇳🇱 NL
Country Code: +31
Carrier: KPN
Prefix: 2021
Location: Amsterdam
Coords: 52.3730796, 4.8924534
Area Code Page: +31 2021
Comments: Disabled for area-code pages
Example: +31 2021 *** ***
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+31 2021 is an area code/prefix that appears to be associated with Amsterdam. It may be assigned to multiple phone numbers within that region.
Yes — use Ringbat's number search to look up a full number. This area-code page helps when only part of a number is known.
Carrier information for this prefix: KPN. In some cases multiple carriers may use similar prefixes.
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