Telephone numbers in the Netherlands

Telephone numbers in the Netherlands
Country	Netherlands
Country link	Netherlands
Continent	Europe
Country calling code	31
International prefix	00

Telephone numbers in the Netherlands are administered by the national regulatory authority, the Autoriteit Consument & Markt (ACM). The country uses an open telephone numbering plan, where the length of both geographic and non-geographic numbers can vary. The international country code for the Netherlands is +31, and domestic calls require dialing a trunk prefix of 0.

Number format and structure

Dutch telephone numbers consist of a variable number of digits, typically ranging from nine to ten digits including the trunk prefix. The structure is defined by the Ministry of Economic Affairs and Climate Policy and managed by the Autoriteit Consument & Markt. Geographic area codes are usually two or three digits long after the trunk prefix, such as 020 for Amsterdam or 010 for Rotterdam. Non-geographic numbers, including those for mobile services and toll-free lines, follow distinct numbering ranges. The system was modernized significantly following the liberalization of the Dutch telecommunications market in the late 20th century, influenced by directives from the European Union.

Geographic and non-geographic numbering

Geographic numbers are tied to specific regions or cities, with major urban centers like The Hague (070) and Utrecht (030) having shorter codes. These numbers are often used by landline services provided by companies such as KPN and VodafoneZiggo. Non-geographic numbers include mobile prefixes (06), toll-free numbers (0800), and premium-rate services (0900). Special numbers for services like the Royal Netherlands Meteorological Institute (KNMI) or emergency services also fall under this category. The allocation of these number blocks is carefully controlled to prevent exhaustion and ensure efficient routing across networks operated by providers like T-Mobile Netherlands.

Mobile telephone numbers

All mobile telephone numbers in the Netherlands start with the prefix 06, followed by eight additional digits, creating a ten-digit national number. This range is exclusively reserved for mobile services offered by major operators including KPN Mobile, Vodafone Netherlands, and T-Mobile Netherlands. The introduction of mobile number portability, enforced by the Autoriteit Consument & Markt, allows subscribers to retain their number when switching carriers. The growth of mobile telephony has been a key focus for the Ministry of Economic Affairs and Climate Policy, with spectrum auctions overseen by the Agentschap Telecom.

Special service numbers

Special service numbers are designated for specific public and commercial functions. Emergency services are reached via 112, a universal number coordinated by the National Police Corps and Regional Ambulance Services. Other important short codes include 0800 for toll-free calls and 0900 for premium-rate information services, such as those for the Dutch Tax and Customs Administration. Numbers beginning with 088 are often used by large corporations and government bodies like the Central Bureau voor de Statistiek. Regulations for these numbers, including pricing, are strictly enforced by the Autoriteit Consument & Markt to protect consumers.

Number portability and regulations

Number portability is a fundamental right for Dutch telephone subscribers, mandated by the European Union's regulatory framework. This allows both geographic and mobile numbers to be transferred between service providers, a process supervised by the Autoriteit Consument & Markt. The legal basis for telecommunications regulation is primarily the Telecommunications Act (Netherlands), which transposes EU directives into national law. Key regulatory decisions often involve consultation with the Dutch Consumers' Association and industry stakeholders like the Dutch Association of Insurers for related services. Enforcement ensures competitive practices among providers such as KPN and Ziggo.

Dialing procedures

For domestic calls within the Netherlands, callers must dial the trunk prefix 0 followed by the area code and subscriber number. To call from abroad, the international access code (like 00 from most European countries) is followed by the country code 31, then the area code without the trunk prefix, and finally the local number. For example, calling Amsterdam from Germany requires dialing 00 31 20 followed by the local number. Instructions for international dialing are often provided by entities like the International Telecommunication Union. Calls to mobile numbers follow the same domestic and international dialing patterns, using the 06 prefix.

Category:Telephone numbers by country Category:Communications in the Netherlands