0751 is not a country code. Numbers inside a country start like this: Ravensburg (Germany), Shaoguan, Guangdong (China), Gwalior, Madhya Pradesh (India), Djezzy (Algeria) 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 |
|---|---|---|
 Ravensburg · Germany | +49 751 … | 0751 … |
 Shaoguan, Guangdong · China | +86 751 … | 0751 … |
 Gwalior, Madhya Pradesh · India | +91 751 … | 0751 … |
 Djezzy · Algeria | +213 751 … | 0751 … |
 Sirajganj · Bangladesh | +880 751 … | 0751 … |
 Padang/Pariaman · Indonesia | +62 751 … | 0751 … |
 Korek · Iraq | +964 751 … | 0751 … |
 Vodacom · Tanzania | +255 751 … | 0751 … |
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.