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| Area or operator | From abroad | Inside the country |
|---|---|---|
 Chile.Com · Chile | +56 64 … | 64 … |
| Claro · Chile | +56 64 … | 64 … |
| Compania Chilena De Comunicaciones Parallel S.A. · Chile | +56 64 … | 64 … |
| 8 more in Chile | ||
| Area or operator | From abroad | Inside the country |
|---|---|---|
 Nikopol, Dnipro · Ukraine | +380 5664 … | 05664 … |
 Morschen · Germany | +49 5664 … | 05664 … |
 Mant/Vrindavan, Uttar Pradesh · India | +91 5664 … | 05664 … |
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.