What is the country code for Slovakia?

The country code for Slovakia is +421.

How are mobile numbers structured in Slovakia?

Slovak mobile numbers typically start with the digit 9 and have a fixed length of 9 digits, following the format +421 9XX XXX XXX.

What are the dialing procedures for international calls to Slovakia?

To call Slovakia from abroad, dial the international prefix (usually 00), followed by Slovakia's country code (+421), the area code (without the leading 0), and then the subscriber number. For example, to call a Bratislava number, you would dial +421 2 XXX XXXX.

Is number portability supported in Slovakia?

Yes, Slovakia supports mobile number portability (MNP), allowing users to retain their mobile numbers when switching between different service providers.

What are the major telecom operators in Slovakia and their associated number ranges?

The major telecom operators in Slovakia are Slovak Telekom, Orange Slovakia, O2 Slovakia, and 4ka (SWAN Mobile). Each operator has specific mobile and fixed-line prefixes, such as 0901-0904 for Slovak Telekom and 0911-0915 for Orange Slovakia.

What is the country code for Slovakia?

The country code for Slovakia is +421.

How do I dial a Slovak landline number from abroad?

To dial a Slovak landline number from abroad, use the international prefix followed by Slovakia's country code and the area code without the leading zero, then the subscriber number. For example, +421 2 123 4567 for Bratislava.

What is the format for Slovak mobile phone numbers?

Slovak mobile phone numbers start with 9 and are formatted as +421 9XX XXX XXX.

How are toll-free numbers formatted in Slovakia?

Toll-free numbers in Slovakia begin with 800 and are formatted as +421 800 XXX XXX.

What is the international dialing prefix for Slovakia?

The international dialing prefix for Slovakia is 00.

Can I keep my phone number if I switch providers in Slovakia?

Yes, Slovakia supports mobile number portability, allowing you to keep your phone number when switching providers.

Which regulatory body oversees phone numbers in Slovakia?

The Regulatory Authority for Electronic Communications and Postal Services (RÚ) oversees phone numbers in Slovakia.

What are premium rate numbers in Slovakia?

Premium rate numbers in Slovakia start with 90X and are used for services with additional charges. They are formatted as +421 90X XXX XXX.

How are shared cost numbers identified in Slovakia?

Shared cost numbers in Slovakia start with 85X-89X and are formatted as +421 8[5-9]X XXX XXX.

What are the major telecom operators in Slovakia?

The major telecom operators in Slovakia are Slovak Telekom, Orange Slovakia, O2 Slovakia, and 4ka (SWAN Mobile).

What is the ITU-T standard for Slovak phone numbers?

Slovakia complies with the ITU-T E.164 standard for telephone numbering, allowing a maximum of 15 digits for international numbers, including the country code.

How can I block a specific phone number in Slovakia?

Users can block specific phone numbers through their telecom provider for security or privacy reasons.

What should developers consider when working with Slovak phone numbers?

Developers should consider validation using regex, normalization by removing non-numeric characters, handling number portability, and enforcing length constraints based on number type.

What does a Slovak geographic number look like?

A Slovak geographic number includes a 2-digit area code followed by the subscriber number, formatted as +421 2 XXX XXXX for Bratislava, for example.

How do I make a domestic call from a Slovak landline to a mobile?

To call a mobile from a landline in Slovakia, dial the mobile prefix followed by the subscriber number, e.g., 0903 456 789.

What is a 'golden number' in Slovakia?

A 'golden number' is a memorable phone number with repeating digits, which may be sold at a premium.

How are Slovak phone numbers allocated and managed?

The Regulatory Authority for Electronic Communications and Postal Services (RÚ) is responsible for the allocation and management of phone numbers in Slovakia.

What is the national prefix for dialing within Slovakia?

The national prefix for dialing within Slovakia is 0.

What is the regular expression for validating Slovak mobile numbers?

The regular expression for validating Slovak mobile numbers is ^\+4219\d{8}$.

How do I dial a Slovak toll-free number from abroad?

To dial a Slovak toll-free number from abroad, use the international prefix, Slovakia's country code, and the toll-free number without the leading zero, e.g., +421 800 123 456.

What is the maximum length of a Slovak phone number according to the E.164 standard?

According to the E.164 standard, Slovak phone numbers have a maximum length of 15 digits, including the country code (+421).

Why is it important to store Slovak phone numbers with the '+' prefix?

Storing Slovak phone numbers with the '+' prefix ensures international compatibility and proper routing of calls and messages from outside Slovakia.

What steps should I take to sanitize user input when collecting Slovak phone numbers?

When collecting Slovak phone numbers, sanitize user input by removing all formatting characters except the '+' sign, validating the length, and checking for valid prefix combinations to prevent errors and ensure data integrity.

How should I handle number portability when integrating with Slovak phone numbers?

To handle number portability effectively, implement real-time lookup services to determine the current carrier, cache lookup results to improve performance, and implement fallback mechanisms to handle lookup failures gracefully.

What is the typical timeframe for number porting in Slovakia?

Number porting in Slovakia typically takes 7-14 days, involving phases such as Initial Request, Validation, Execution, and Verification.

Where can I find the most up-to-date information on Slovak numbering regulations?

The most up-to-date information on Slovak numbering regulations can be found on the website of the Regulatory Authority for Electronic Communications and Postal Services (RÚ) at https://www.teleoff.gov.sk.

Besides validation, what other technical best practices should I follow when working with Slovak phone numbers?

In addition to validation, follow best practices like designing for internationalization, optimizing performance for number lookups, and implementing security measures to protect user data.

What is the role of the Regulatory Authority for Electronic Communications and Postal Services (RÚ) in Slovakia's phone number system?

The Regulatory Authority for Electronic Communications and Postal Services (RÚ) oversees and regulates the number portability process, ensures compliance with established standards, and protects consumer rights during transitions.

How does Slovakia's number portability system align with European Union standards?

Slovakia's number portability system aligns with European Union standards, enabling both mobile number portability (MNP) and fixed-line number portability (FNP), promoting market competition and seamless service continuity.

What are the implications of E.164 standard compliance for developers working with Slovak phone numbers?

E.164 standard compliance provides a predictable and consistent framework for working with phone numbers, simplifying number parsing and validation in applications, and allowing categorization of numbers by service type.

Slovakia Phone Numbers: Format, Area Code & Validation Guide

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