Understanding Phone Numbers in Guinea
Quick Reference Guide
- Country: Guinea
- Country Code: +224
- International Prefix: 00
- National Prefix: None
- Typical Number Length: 9 digits (excluding country code)
Comprehensive Overview
Gain a thorough understanding of Guinea's telephone numbering plan with this detailed guide. It serves as an essential resource for telecom professionals, developers, and systems administrators who need to navigate the intricacies of Guinea's phone numbers, including their structure, dialing procedures, and regulatory framework.
Number Formats Explained
General Number Structure
Guinea's phone numbers are formatted as follows:
- Country Code: +224
- Subscriber Number: 9 digits
Landline Numbers
Landline numbers in Guinea adhere to a specific format:
- Format:
3XXXXXXX
- Length: 9 digits (including the initial '3')
- Example:
30243123
Mobile Numbers
Mobile numbers in Guinea are distinguished by certain prefixes:
- Format:
6XXXXXXX
- Length: 9 digits (including the initial '6')
- Example:
622345678
Special Service Numbers
Guinea has designated short codes for emergency services:
- Emergency Services:
- Police: 17
- Fire Department: 18
- Medical Emergency: 15
Number Format Table
Type | Format | Length | Example |
---|---|---|---|
Landline | 3XXXXXXX | 9 digits | 30243123 |
Mobile | 6XXXXXXX | 9 digits | 622345678 |
Police Emergency | 17 | 2 digits | 17 |
Fire Department | 18 | 2 digits | 18 |
Medical Emergency | 15 | 2 digits | 15 |
Regular Expressions for Validation
Use these regular expressions to validate Guinea's phone numbers:
- Landline:
^3\d{7}$
- Mobile:
^6\d{7}$
- Emergency Services:
^(15|17|18)$
Dialing Procedures in Guinea
Domestic Calls
- Landline to Landline: Dial the 9-digit number directly.
- Landline to Mobile: Dial the 9-digit mobile number directly.
- Mobile to Mobile: Dial the 9-digit mobile number directly.
International Calls
- Outgoing: Dial
00
, followed by the country code, and then the subscriber number. For instance, to call France, dial00 33 XXXXXXXXX
. - Incoming: From abroad, dial the international access code, followed by Guinea's country code
+224
, and then the 9-digit local number.
Number Portability
Currently, Guinea does not offer number portability for mobile or fixed-line numbers. Subscribers must change their phone numbers when switching telecom operators.
Major Telecom Operators and Number Ranges
Operator | Mobile Number Range | Landline Number Range |
---|---|---|
Orange Guinea | 620xxxxxx - 629xxxxxx | 302xxxxxx - 309xxxxxx |
MTN Guinea | 620xxxxxx - 629xxxxxx | 302xxxxxx - 309xxxxxx |
Cellcom Guinea | 620xxxxxx - 629xxxxxx | 302xxxxxx - 309xxxxxx |
ITU-T Recommendations
Guinea complies with the ITU-T Recommendation E.164, which standardizes international telephone number formats.
Number Allocation and Management
The Guinean Telecommunications Regulatory Agency (ARPT) oversees the allocation and management of phone numbers in Guinea, ensuring adherence to international standards and fair distribution among telecom operators.
Technical Restrictions and Special Cases
There are no special restrictions or cases such as golden numbers within Guinea's numbering plan. All numbers follow the standard formats and rules.
Technical Considerations for Developers
- Validation: Implement the provided regular expressions for number validation.
- Formatting: Ensure numbers adhere to the E.164 standard for international use.
- Dialing Rules: Apply correct dialing rules for both domestic and international calls.
- Number Management: Be aware of number ranges assigned to operators for accurate call routing.
For the latest telecommunications regulations in Guinea, visit the Guinean Telecommunications Regulatory Agency (ARPT) official website.