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Belarus Phone Numbers: Format, Area Code & Validation Guide
Quick Reference
Country: Belarus
Country Code: +375
International Prefix: 810
National Prefix: 8
Overview
This guide offers a detailed exploration of the Belarusian telephone numbering plan. It includes the structure of phone numbers, dialing procedures, and essential technical details for telecom experts, developers, and system administrators. The information aligns with the E.164 international numbering plan standard, a global telecommunications benchmark.
Number Formats
General Structure
Belarus employs an open numbering plan, with a maximum total length of 12 digits for domestic dialing, including the national prefix. The basic structure includes:
Country Code: +375
National Prefix: 8
Subscriber Number: Varies by type (geographic, mobile, special services)
Number Format Breakdown
Type
Format
Example
Geographic
+375 <Area Code> <Local Number>
+375 17 1234567
Mobile
+375 <Carrier Code> <Subscriber Number>
+375 29 1234567
Toll-Free
+375 800 <Subscriber Number>
+375 800 1234567
Premium Rate
+375 902 <Subscriber Number>
+375 902 1234567
Geographic (Landline) Numbers
Area Codes: Typically 2 digits (e.g., 17 for Minsk)
Subscriber Number: 7 digits
Format: +375 <Area Code> <7-Digit Number>
Example: +375 17 1234567
Mobile Numbers
Carrier Codes: 2 digits (e.g., 29, 33, 44)
Subscriber Number: 7 digits
Format: +375 <Carrier Code> <7-Digit Number>
Example: +375 29 1234567
Toll-Free Numbers
Prefix: 800 or 803
Subscriber Number: 7 digits
Format: +375 800 <7-Digit Number>
Example: +375 800 1234567
Premium Rate Numbers
Prefix: 902
Subscriber Number: 7 digits
Format: +375 902 <7-Digit Number>
Example: +375 902 1234567
Regular Expressions
For developers managing Belarusian phone numbers, the following regular expressions can validate different types:
Geographic: ^\+375\s(1[5-7]|2[1-5])\s\d{7}$
Mobile: ^\+375\s(29|33|44)\s\d{7}$
Toll-Free: ^\+375\s800\s\d{7}$
Premium Rate: ^\+375\s902\s\d{7}$
Dialing Procedures
Domestic Calls
Landline to Landline: Dial 8, followed by the area code and the subscriber number. Example: 8 17 1234567
Landline to Mobile: Dial 8, followed by the carrier code and the subscriber number. Example: 8 29 1234567
Mobile to Mobile: Directly dial the 9-digit number starting with the carrier code. Example: 29 1234567
International Calls
Outgoing: Dial 810 (international prefix), followed by the country code and the subscriber number. Example: 810 44 20 1234567 (calling the UK)
Incoming: Callers from abroad should dial +375, followed by the area or carrier code and the subscriber number. Example: +375 29 1234567
The Ministry of Communications and Informatization of the Republic of Belarus is responsible for the allocation and regulation of telephone numbers in Belarus. The numbering plan is managed in accordance with ITU-T Recommendation E.164.
Technical Restrictions and Special Cases
Golden Numbers: Premium numbers, often referred to as "golden numbers," are available in Belarus and are typically sold at a premium rate by telecom operators.
Number Blocking: Specific number ranges may be blocked for various reasons, including regulatory restrictions or to prevent fraud.
Technical Considerations for Developers
When implementing systems that interact with Belarusian phone numbers, consider the following:
Validation: Utilize the regular expressions provided to validate phone numbers.
Formatting: Ensure that international formats include the +375 country code.
Portability: Account for mobile number portability when designing systems that involve carrier identification.
Number Blocking: Implement checks for blocked or restricted numbers based on regulatory updates.