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| Area or operator | From abroad | Inside the country |
|---|---|---|
 Brownsville, TX · United States | +1 956 … | 1956 … |
| Donna, TX · United States | +1 956 … | 1956 … |
| Edinburg, TX · United States | +1 956 … | 1956 … |
| 18 more in United States | ||
 Fakfak · Indonesia | +62 956 … | 0956 … |
 Sasebo, Nagasaki · Japan | +81 956 … | 0956 … |
 Claro · Peru | +51 956 … | 0956 … |
 Taiwan Mobile · Taiwan | +886 956 … | 0956 … |
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.