029 is not a country code. Numbers inside a country start like this: Cardiff (United Kingdom), XiAn/Xianyang, Shaanxi (China), Prizren (Serbia), Ghardaia/Illizi/Tamanrasset (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 |
|---|---|---|
 Cardiff · United Kingdom | +44 29 … | 029 … |
 XiAn/Xianyang, Shaanxi · China | +86 29 … | 029 … |
 Prizren · Serbia | +381 29 … | 029 … |
 Ghardaia/Illizi/Tamanrasset · Algeria | +213 29 … | 029 … |
 National Security · Ghana | +233 29 … | 029 … |
 Kanturk · Ireland | +353 29 … | 029 … |
 Mito, Ibaraki · Japan | +81 29 … | 029 … |
| Tsuchiura, Ibaraki · Japan | +81 29 … | 029 … |
 Ferizaj · Kosovo | +383 29 … | 029 … |
| Prizren · Kosovo | +383 29 … | 029 … |
 Jbeil & Keserwan · Lebanon | +961 29 … | 029 … |
 Vodafone · New Zealand | +64 29 … | 029 … |
 Bellevue · Zimbabwe | +263 29 … | 029 … |
| Bulawayo · Zimbabwe | +263 29 … | 029 … |
| Esigodini · Zimbabwe | +263 29 … | 029 … |
| 8 more in Zimbabwe | ||
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.