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| Area or operator | From abroad | Inside the country |
|---|---|---|
 Chita · Russia | +7 302 … | 8302 … |
 Bear, DE · United States | +1 302 … | 1302 … |
| Bridgeville, DE · United States | +1 302 … | 1302 … |
| Claymont, DE · United States | +1 302 … | 1302 … |
| 23 more in United States | ||
 Partners Telecom Colombia · Colombia | +57 302 … | 0302 … |
| Tigo · Colombia | +57 302 … | 0302 … |
 Lerum · Sweden | +46 302 … | 0302 … |
 MobiFone · Vietnam | +84 302 … | 0302 … |
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.