Finland • NPA 23 ☎️ Central Office Exchange (NXX)

+358 (23) 305 Exchange Code

Technical registry directory for telephone subscriber numbers starting with +358 (23) 305. Central office block assigned to Turku/Pori, Finland.

Standard Subscriber Format

+358 (23) 305-XXXX

Telecom Carrier Local Network Carrier

Area Code (NPA) 23

Primary Location Turku/Pori

Service Type Landline

📋 Central Office Exchange 305 Routing Details

The 305 exchange code (central office prefix) operates within the 23 Numbering Plan Area (NPA) servicing Turku/Pori, Finland. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.

Telecommunication services within the +358 (23) 305 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.

🌐 Dialing Instructions

• Domestic Calls: Dial 023 305-1234 or local national format.
• International Calls: Dial +358 23 305-1234 from outside Finland.
• E.164 Standard: +35823305XXXX

📞 Nearby Exchanges in Area Code 23

View All Area Code 23 Exchanges ›

(23) 685 (23) 289 (23) 378 (23) 777 (23) 533 (23) 345 (23) 509 (23) 277 (23) 816 (23) 299 (23) 815 (23) 523 (23) 820 (23) 601 (23) 589 (23) 677

❓ Frequently Asked Questions

What area code is +358 (23) 305?

Phone numbers starting with +358 (23) 305 belong to the 23 area code in Turku/Pori, Finland, routed via exchange block 305.

How do I call a 305 exchange number from abroad?

To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +358, then 23, and the subscriber number.

Which provider operates the 305 prefix in Turku/Pori?

Telecom services for the 305 exchange block in Turku/Pori are primarily assigned to Local Network Carrier for Landline connections.