Portugal • NPA 255 ☎️ Central Office Exchange (NXX)

+351 (255) 234 Exchange Code

Technical registry directory for telephone subscriber numbers starting with +351 (255) 234. Central office block assigned to Penafiel, Portugal.

Standard Subscriber Format

+351 (255) 234-XXXX

Telecom Carrier Local Network Carrier

Area Code (NPA) 255

Primary Location Penafiel

Service Type Landline

📋 Central Office Exchange 234 Routing Details

The 234 exchange code (central office prefix) operates within the 255 Numbering Plan Area (NPA) servicing Penafiel, Portugal. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.

Telecommunication services within the +351 (255) 234 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.

🌐 Dialing Instructions

• Domestic Calls: Dial 0255 234-1234 or local national format.
• International Calls: Dial +351 255 234-1234 from outside Portugal.
• E.164 Standard: +351255234XXXX

📞 Nearby Exchanges in Area Code 255

View All Area Code 255 Exchanges ›

(255) 403 (255) 963 (255) 605 (255) 423 (255) 411 (255) 714 (255) 265 (255) 299 (255) 305 (255) 568 (255) 944 (255) 895 (255) 396 (255) 800 (255) 445 (255) 674

❓ Frequently Asked Questions

What area code is +351 (255) 234?

Phone numbers starting with +351 (255) 234 belong to the 255 area code in Penafiel, Portugal, routed via exchange block 234.

How do I call a 234 exchange number from abroad?

To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +351, then 255, and the subscriber number.

Which provider operates the 234 prefix in Penafiel?

Telecom services for the 234 exchange block in Penafiel are primarily assigned to Local Network Carrier for Landline connections.