Algeria • NPA 31
☎️ Central Office Exchange (NXX)
+213 (31) 333 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +213 (31) 333. Central office block assigned to Constantine, Algeria.
Standard Subscriber Format
+213 (31) 333-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
31
Primary Location
Constantine
Service Type
Landline
📋 Central Office Exchange 333 Routing Details
The 333 exchange code (central office prefix) operates within the 31 Numbering Plan Area (NPA) servicing Constantine, Algeria. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +213 (31) 333 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.
🌐 Dialing Instructions
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Domestic Calls: Dial
031 333-1234or local national format. -
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International Calls: Dial
+213 31 333-1234from outside Algeria. -
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E.164 Standard:
+21331333XXXX
📞 Nearby Exchanges in Area Code 31
View All Area Code 31 Exchanges ›❓ Frequently Asked Questions
What area code is +213 (31) 333?
Phone numbers starting with +213 (31) 333 belong to the 31 area code in Constantine, Algeria, routed via exchange block 333.
How do I call a 333 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +213, then 31, and the subscriber number.
Which provider operates the 333 prefix in Constantine?
Telecom services for the 333 exchange block in Constantine are primarily assigned to Local Network Carrier for Landline connections.