Poland • NPA 23 ☎️ Central Office Exchange (NXX)

+48 (23) 628 Exchange Code

Technical registry directory for telephone subscriber numbers starting with +48 (23) 628. Central office block assigned to Ciechanów, Poland.

Standard Subscriber Format

+48 (23) 628-XXXX

Telecom Carrier Local Network Carrier

Area Code (NPA) 23

Primary Location Ciechanów

Service Type Landline

📋 Central Office Exchange 628 Routing Details

The 628 exchange code (central office prefix) operates within the 23 Numbering Plan Area (NPA) servicing Ciechanów, Poland. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.

Telecommunication services within the +48 (23) 628 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.

🌐 Dialing Instructions

• Domestic Calls: Dial 023 628-1234 or local national format.
• International Calls: Dial +48 23 628-1234 from outside Poland.
• E.164 Standard: +4823628XXXX

📞 Nearby Exchanges in Area Code 23

View All Area Code 23 Exchanges ›

(23) 670 (23) 732 (23) 660 (23) 914 (23) 359 (23) 620 (23) 943 (23) 823 (23) 958 (23) 335 (23) 556 (23) 242 (23) 898 (23) 794 (23) 325 (23) 966

❓ Frequently Asked Questions

What area code is +48 (23) 628?

Phone numbers starting with +48 (23) 628 belong to the 23 area code in Ciechanów, Poland, routed via exchange block 628.

How do I call a 628 exchange number from abroad?

To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +48, then 23, and the subscriber number.

Which provider operates the 628 prefix in Ciechanów?

Telecom services for the 628 exchange block in Ciechanów are primarily assigned to Local Network Carrier for Landline connections.