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| Country | From abroad |
|---|---|
 Cuba | +53 … |
| Area or operator | From abroad | Inside the country |
|---|---|---|
 Virgin Mobile · United Arab Emirates | +971 53 … | 053 … |
 Hot Mobile · Israel | +972 53 … | 053 … |
 Chiang Mai/Chiang Rai/Lamphun/Mae Hong Son · Thailand | +66 53 … | 053 … |
 Enschede · Netherlands | +31 53 … | 053 … |
 Aceguá - RS · Brazil | +55 53 … | 053 … |
| Arroio Grande - RS · Brazil | +55 53 … | 053 … |
| Bagé - RS · Brazil | +55 53 … | 053 … |
| 30 more in Brazil | ||
 Takhar · Afghanistan | +93 53 … | 053 … |
 Laç, Kurbin · Albania | +355 53 … | 053 … |
 Aalst · Belgium | +32 53 … | 053 … |
 Doboj · Bosnia & Herzegovina | +387 53 … | 053 … |
 Belokopitovo · Bulgaria | +359 53 … | 053 … |
| Branichevo · Bulgaria | +359 53 … | 053 … |
| Byala Reka, Shumen · Bulgaria | +359 53 … | 053 … |
| 35 more in Bulgaria | ||
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.