0722 is not a country code. Numbers inside a country start like this: Suizhou, Hubei (China), Baneswar (Bangladesh), Tanggamus (Indonesia), Safaricom (Kenya) and others. The first digit 0 is the trunk prefix for domestic calls and is dropped from abroad.
Have the full number? Check it in the number lookup.
| Area or operator | From abroad | Inside the country |
|---|---|---|
 Suizhou, Hubei · China | +86 722 … | 0722 … |
 Baneswar · Bangladesh | +880 722 … | 0722 … |
| Godagari · Bangladesh | +880 722 … | 0722 … |
| Paba · Bangladesh | +880 722 … | 0722 … |
| 2 more in Bangladesh | ||
 Tanggamus · Indonesia | +62 722 … | 0722 … |
 Safaricom · Kenya | +254 722 … | 0722 … |
 Lebara · Nigeria | +234 722 … | 0722 … |
 Jacobabad · Pakistan | +92 722 … | 0722 … |
 Vodafone · Romania | +40 722 … | 0722 … |
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.