Serbia • NPA 21
☎️ Central Office Exchange (NXX)
+381 (21) 903 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +381 (21) 903. Central office block assigned to Novi Sad, Serbia.
Standard Subscriber Format
+381 (21) 903-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
21
Primary Location
Novi Sad
Service Type
Landline
📋 Central Office Exchange 903 Routing Details
The 903 exchange code (central office prefix) operates within the 21 Numbering Plan Area (NPA) servicing Novi Sad, Serbia. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +381 (21) 903 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
021 903-1234or local national format. -
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International Calls: Dial
+381 21 903-1234from outside Serbia. -
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E.164 Standard:
+38121903XXXX
📞 Nearby Exchanges in Area Code 21
View All Area Code 21 Exchanges ›❓ Frequently Asked Questions
What area code is +381 (21) 903?
Phone numbers starting with +381 (21) 903 belong to the 21 area code in Novi Sad, Serbia, routed via exchange block 903.
How do I call a 903 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +381, then 21, and the subscriber number.
Which provider operates the 903 prefix in Novi Sad?
Telecom services for the 903 exchange block in Novi Sad are primarily assigned to Local Network Carrier for Landline connections.