Area Code 571 – Twello
The phone area code for Twello is 571 (international format +31571). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 571
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Twello
Geographic Significance of Area Code 571
Area code +31 571 is a geographic National Destination Code (NDC) assigned to the town of Twello and its surrounding municipalities within the province of Gelderland, Netherlands. Twello is part of the Voorst municipality, situated in the eastern Netherlands near the larger cities of Apeldoorn and Deventer. The code covers a predominantly residential and light-industrial area, with local services, retail, and administrative offices relying on this fixed-line prefix.
Geographically, the +31 571 area encompasses the villages of Twello, Wilp, and Teuge, as well as rural hamlets within the Voorst region. The area is known for its proximity to the A1 motorway and the IJssel river, making it a commuter belt for the nearby economic hubs of Apeldoorn and Deventer. This prefix is exclusively used for PSTN (Public Switched Telephone Network) and VoIP (Voice over IP) fixed-line services, not for mobile numbers.
Dialing Formats and Procedures
When calling a Twello number from within the Netherlands, you must use the national trunk prefix 0 followed by the area code and the subscriber's 6- or 7-digit local number. For example, a local Twello number might be dialed as 0571 123456 from any Dutch phone. The leading 0 is only used for domestic calls and is dropped when dialing from abroad.
For international callers, the correct format is +31 571 123456 (or 0031 571 123456 from countries using the international access code 00). The plus sign (+) represents the international exit code, which varies by country (e.g., 011 from the US/Canada). Always omit the leading 0 when dialing from outside the Netherlands.
Number Structure and Overlay Considerations
Dutch fixed-line numbers are generally 9 digits long including the area code (excluding the trunk prefix). Thus, a +31 571 number consists of the country code (31), the area code (571), and a 6-digit subscriber number, yielding a total of 10 digits after the plus sign. There are currently no overlay codes in this region; +31 571 remains the sole geographic code for Twello. However, number portability allows subscribers to retain their 0571 number even if they switch to a different fixed-line operator, including VoIP providers.
For callers within Twello, local calls may be made using only the 6-digit subscriber number in some cases, but for clarity and to avoid misdialing, it is recommended to always use the full 10-digit format (including the area code) when dialing from any phone, including mobile devices.