Calling Constantine from Abroad
+213+31+subscriber number
Remove the domestic trunk 0 when using +213. For example, 021 23 45 67 becomes +213 21 23 45 67. Do not add a second 0 after the country code.
🇩🇿 Constantine Province city guideConstantine Area Code in Algeria
Constantine Area Code in Algeria
and Calling Guide
Constantine is assigned number blocks within geographic fixed code 31.
Featured domestic code031
Country: +213Constantine Province
Local dialing reference
Constantine Area Code
Use the complete subscriber number and confirm the destination before calling.
Local Calling Time
Central European Time, UTC+1 year-round
Africa/Algiers: Calculated in your browser
Always confirm the recipient’s local time, especially where daylight-saving rules or regional zones differ.
What the City Association Means
Constantine is assigned number blocks within geographic fixed code 31.
An OAB code is a fixed-network routing and geographic allocation, not a precise address. Several codes serve multiple wilayas, and Algiers also has additional fixed capacity, including code 23, beyond this priority set. Ported, internet-based, mobile and non-geographic numbers must not be interpreted using these city associations. Always use the complete number and verify current service with the provider.
Constantine Province
Browse other featured cities and codes in the same administrative grouping.
Open Constantine Province guideCommon questions
Constantine Phone Code FAQ
What is the area code for Constantine?
Constantine is associated with 031 in the featured fixed-line directory.
What country code is used for Constantine?
Constantine is in Algeria, which uses country calling code +213.
Can the code prove a caller is in Constantine?
No. Numbering association is not live geolocation, and portability, forwarding or internet telephony can change where a call is received.