Have the full number? Check it in the number lookup.
| Area or operator | From abroad | Inside the country |
|---|---|---|
 Apex Telecom · Russia | +7 901 … | 8901 … |
| Dani CALL · Russia | +7 901 … | 8901 … |
| MTS · Russia | +7 901 … | 8901 … |
| 3 more in Russia | ||
 Arlington, TN · United States | +1 901 … | 1901 … |
| Collierville, TN · United States | +1 901 … | 1901 … |
| Covington, TN · United States | +1 901 … | 1901 … |
| 4 more in United States | ||
 Tacheng, Xinjiang · China | +86 901 … | 0901 … |
 Africell · Congo - Kinshasa | +243 901 … | 0901 … |
 Timika · Indonesia | +62 901 … | 0901 … |
 Airtel · Nigeria | +234 901 … | 0901 … |
 Claro · Peru | +51 901 … | 0901 … |
 T-Mobile (Slovak Telekom) · Slovakia | +421 901 … | 0901 … |
 Taiwan Mobile · Taiwan | +886 901 … | 0901 … |
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.