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| Area or operator | From abroad | Inside the country |
|---|---|---|
 Abasha · Georgia | +995 412 … | 0412 … |
 Diyarbakir · Türkiye | +90 412 … | 0412 … |
 Bethel Park, PA · United States | +1 412 … | 1412 … |
| Bridgeville, PA · United States | +1 412 … | 1412 … |
| Carnegie, PA · United States | +1 412 … | 1412 … |
| 9 more in United States | ||
 Anshan, Liaoning · China | +86 412 … | 0412 … |
 Oss · Netherlands | +31 412 … | 0412 … |
 Optus · Australia | +61 412 … | 0412 … |
 Matara · Sri Lanka | +94 412 … | 0412 … |
 Digitel GSM · Venezuela | +58 412 … | 0412 … |
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.