National Telecom Specification

Netherlands (+31) Country Calling Code & SMS Guide

Complete engineering reference for phone numbering formats, domestic trunk prefixes, cellular mobile operator allocations, and regulatory A2P SMS requirements in Netherlands.

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Country Dialing Code +31 ISO: NL

Domestic Trunk Prefix 0 Omitted internationally

National Length 9 digits (excluding 0) Local subscriber digits

Full E.164 Length 11 digits (+31 6xx xxx xxx) With +31 prefix

Telephony Architecture & Carrier Allocations

Destination Codes: Geographic 01-05, Mobile 06

Mobile Prefix Patterns: 06 reserved for mobile cellular telephony by ACM

Major Mobile Network Operators: KPN, VodafoneZiggo, Odido (formerly T-Mobile Netherlands)

A2P Messaging Regulations & Firewall Policies

A2P 10DLC & Campaign Registration

Not applicable. Supervised by the Authority for Consumers and Markets (ACM).

Alphanumeric Sender ID Support

Supported up to 11 characters. Unregistered senders may face operator filtering if brand identity conflicts with verified financial lists.

Two-Way Messaging Capability

Supported using 06 virtual mobile numbers.

Character Encoding Standards

GSM-7 standard (160 chars/segment).

Compliance Framework: Telecommunications Act (Telecommunicatiewet) and EU GDPR; opt-in required for commercial SMS.

Interactive Number Intelligence

Test a Netherlands Number Now

Check if a Netherlands phone number conforms to the national numbering plan, classify mobile vs VoIP allocation, and obtain canonical E.164 standardization.

Frequently Asked Questions for Netherlands

What is the international calling code for the Netherlands?

The Dutch international calling code is +31. In E.164, mobile numbers appear as +316xxxxxxxx.

Related National Calling Codes

Australia +61 Austria +43 Belgium +32 Brazil +55 Canada +1 France +33 Germany +49 India +91