0734 is not a country code. Numbers inside a country start like this: Hengyang, Hunan (China), Ujjain, Madhya Pradesh (India), Muara Enim (Indonesia), Telecom Liechtenstein (Liechtenstein) 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 |
|---|---|---|
 Hengyang, Hunan · China | +86 734 … | 0734 … |
 Ujjain, Madhya Pradesh · India | +91 734 … | 0734 … |
 Muara Enim · Indonesia | +62 734 … | 0734 … |
 Telecom Liechtenstein · Liechtenstein | +423 734 … | 0734 … |
 Roke Telkom · Uganda | +256 734 … | 0734 … |
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.