The Area Codes of Serbia:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Zaječar | 19 (+381 19) |
| 2. | Zaječar | 19 (+381 19) |
| 3. | Zrenjanin | 23 (+381 23) |
| 4. | Zrenjanin | 23 (+381 23) |
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The Area Codes of Serbia:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Zaječar | 19 (+381 19) |
| 2. | Zaječar | 19 (+381 19) |
| 3. | Zrenjanin | 23 (+381 23) |
| 4. | Zrenjanin | 23 (+381 23) |