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| Area or operator | From abroad | Inside the country |
|---|---|---|
 Ordu · Türkiye | +90 452 … | 0452 … |
 Qiqihar, Heilongjiang · China | +86 452 … | 0452 … |
 Madurai, Tamil Nadu · India | +91 452 … | 0452 … |
 Telstra · Australia | +61 452 … | 0452 … |
| Vodafone · Australia | +61 452 … | 0452 … |
 Poso · Indonesia | +62 452 … | 0452 … |
 Ratnapura · Sri Lanka | +94 452 … | 0452 … |
If a number starts with +, the first 1–3 digits are the country code. If it starts with 0 (8 in Russia and Kazakhstan), it is a domestic number: an area or operator code follows, and from abroad the 0 or 8 is replaced with + and the country code. The same digits can mean different places, so where the call came from matters.