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| Area or operator | From abroad | Inside the country |
|---|---|---|
 Cocoa Beach, FL · United States | +1 321 … | 1321 … |
| Cocoa, FL · United States | +1 321 … | 1321 … |
| Florida · United States | +1 321 … | 1321 … |
| 5 more in United States | ||
 Dronten · Netherlands | +31 321 … | 0321 … |
 Noakhali/Chatkhil · Bangladesh | +880 321 … | 0321 … |
 Claro · Colombia | +57 321 … | 0321 … |
 Mojokerto/Jombang · Indonesia | +62 321 … | 0321 … |
 Jazz · Pakistan | +92 321 … | 0321 … |
 Ulricehamn · Sweden | +46 321 … | 0321 … |
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.