Portugal • NPA 238 ☎️ Central Office Exchange (NXX)

+351 (238) 203 Exchange Code

Technical registry directory for telephone subscriber numbers starting with +351 (238) 203. Central office block assigned to Seia, Portugal.

Standard Subscriber Format

+351 (238) 203-XXXX

Telecom Carrier Local Network Carrier

Area Code (NPA) 238

Primary Location Seia

Service Type Landline

📋 Central Office Exchange 203 Routing Details

The 203 exchange code (central office prefix) operates within the 238 Numbering Plan Area (NPA) servicing Seia, Portugal. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.

Telecommunication services within the +351 (238) 203 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.

🌐 Dialing Instructions

• Domestic Calls: Dial 0238 203-1234 or local national format.
• International Calls: Dial +351 238 203-1234 from outside Portugal.
• E.164 Standard: +351238203XXXX

📞 Nearby Exchanges in Area Code 238

View All Area Code 238 Exchanges ›

(238) 564 (238) 814 (238) 715 (238) 747 (238) 277 (238) 302 (238) 584 (238) 680 (238) 679 (238) 619 (238) 726 (238) 741 (238) 556 (238) 628 (238) 939 (238) 759

❓ Frequently Asked Questions

What area code is +351 (238) 203?

Phone numbers starting with +351 (238) 203 belong to the 238 area code in Seia, Portugal, routed via exchange block 203.

How do I call a 203 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 238, and the subscriber number.

Which provider operates the 203 prefix in Seia?

Telecom services for the 203 exchange block in Seia are primarily assigned to Local Network Carrier for Landline connections.