Area Code 10 – Rotterdam
The phone area code for Rotterdam is 10 (international format +3110). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 10
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Rotterdam
Geographic Coverage and Administrative Jurisdiction
The +31 10 country calling code prefix is the geographic National Destination Code (NDC) assigned to the Rotterdam telephony area in the Netherlands. This numbering area encompasses not only the city of Rotterdam but also the surrounding municipalities within the Rijnmond region, including Schiedam, Vlaardingen, Capelle aan den IJssel, and Ridderkerk. Administratively, the area falls under the jurisdiction of the Netherlands' Authority for Consumers and Markets (ACM), which oversees the national numbering plan in accordance with ITU-T E.164 recommendations.
Primary Cities and Local Significance
Rotterdam, the second-largest city in the Netherlands, is the economic and logistical heart of the region, home to Europe's largest port. The 010 area code serves a dense urban and suburban population, with significant business districts, industrial zones, and residential neighborhoods. Key districts such as Centrum, Kralingen, and Feijenoord, along with the nearby towns of Spijkenisse and Maassluis, are all reached via this prefix.
Dialing Formats and Caller Instructions
For local callers within the Netherlands, the national trunk prefix '0' is used before the area code, resulting in the format 010 XXXX XXX (where X represents the subscriber number, typically 7 digits). Thus, a complete national number is 10 digits: 0-10-XXXXXXX.
For international callers, the country code +31 replaces the leading '0', so the number is dialed as +31 10 XXXX XXX. For example, to call a Rotterdam-based landline from abroad, one would dial +31 10 123 4567. When dialing from a mobile phone within the Netherlands, it is also acceptable to use the international format with +31.
Overlay and Numbering Plan Considerations
Currently, the Rotterdam area does not have an overlay code; the 010 prefix remains the sole geographic area code for the region. However, number portability allows subscribers to retain their 010 numbers when switching providers, including to VoIP services, which means that a number with this prefix may not always be physically located in Rotterdam. This is an important consideration for businesses using number lookup for customer service or verification purposes.
Practical Guidance for Callers
When calling a Rotterdam number from a foreign country, always replace the trunk prefix '0' with the country code +31. For example, a local number 010-2345678 becomes +31 10 2345678 internationally. Ensure you omit any leading '00' or '+' when dialing from a landline that requires an international access code, but from mobile devices, the '+' symbol is universally recognized.