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| Area or operator | From abroad | Inside the country |
|---|---|---|
 Alexandria, VA · United States | +1 703 … | 1703 … |
| Arlington, VA · United States | +1 703 … | 1703 … |
| Ashburn, VA · United States | +1 703 … | 1703 … |
| 21 more in United States | ||
 Balanovo · Bulgaria | +359 703 … | 0703 … |
| Cherven Breg · Bulgaria | +359 703 … | 0703 … |
| Dzherman · Bulgaria | +359 703 … | 0703 … |
| 5 more in Bulgaria | ||
 MTN · Nigeria | +234 703 … | 0703 … |
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.