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| Area or operator | From abroad | Inside the country |
|---|---|---|
 Angier, NC · United States | +1 919 … | 1919 … |
| Apex, NC · United States | +1 919 … | 1919 … |
| Benson, NC · United States | +1 919 … | 1919 … |
| 32 more in United States | ||
 Tongchuan, Shaanxi · China | +86 919 … | 0919 … |
 Claro · Peru | +51 919 … | 0919 … |
| Entel · Peru | +51 919 … | 0919 … |
| Intermax · Peru | +51 919 … | 0919 … |
 Smart · Philippines | +63 919 … | 0919 … |
 Orange · Slovakia | +421 919 … | 0919 … |
 Chunghwa Telecom · Taiwan | +886 919 … | 0919 … |
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.