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| Area or operator | From abroad | Inside the country |
|---|---|---|
 BeeOne Communications · Switzerland | +41 77 … | 077 … |
| In&Phone · Switzerland | +41 77 … | 077 … |
| Lycamobile · Switzerland | +41 77 … | 077 … |
| 3 more in Switzerland | ||
| Area or operator | From abroad | Inside the country |
|---|---|---|
 Drage Elbe · Germany | +49 4177 … | 04177 … |
 Arkonam, Tamil Nadu · India | +91 4177 … | 04177 … |
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.