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| Area or operator | From abroad | Inside the country |
|---|---|---|
 Orange · Moldova | +373 621 … | 0621 … |
 Ludwigshafen · Germany | +49 621 … | 0621 … |
| Mannheim · Germany | +49 621 … | 0621 … |
 Muzaffarpur, Bihar · India | +91 621 … | 0621 … |
 Tebing Tinggi/Sei Rampah · Indonesia | +62 621 … | 0621 … |
 Junsele · Sweden | +46 621 … | 0621 … |
 Viettel · Tanzania | +255 621 … | 0621 … |
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.