072 is not a country code. Numbers inside a country start like this: Alkmaar (Netherlands), Swisscom (Switzerland), Roshan (Afghanistan), Botevgrad (Bulgaria) 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 |
|---|---|---|
 Alkmaar · Netherlands | +31 72 … | 072 … |
 Swisscom · Switzerland | +41 72 … | 072 … |
 Roshan · Afghanistan | +93 72 … | 072 … |
 Botevgrad · Bulgaria | +359 72 … | 072 … |
| Elin Pelin · Bulgaria | +359 72 … | 072 … |
| Etropole · Bulgaria | +359 72 … | 072 … |
| 7 more in Bulgaria | ||
 Metfone · Cambodia | +855 72 … | 072 … |
 Ibaraki, Osaka · Japan | +81 72 … | 072 … |
| Ikeda, Osaka · Japan | +81 72 … | 072 … |
| Neyagawa, Osaka · Japan | +81 72 … | 072 … |
| 2 more in Japan | ||
 Brak · Libya | +218 72 … | 072 … |
| Edry · Libya | +218 72 … | 072 … |
| Ghat · Libya | +218 72 … | 072 … |
| 4 more in Libya | ||
 T-Mobile · North Macedonia | +389 72 … | 072 … |
 Ayolas · Paraguay | +595 72 … | 072 … |
 Tumbes · Peru | +51 72 … | 072 … |
 La Union · Philippines | +63 72 … | 072 … |
 Vodacom · South Africa | +27 72 … | 072 … |
 Etisalat · Sri Lanka | +94 72 … | 072 … |
 42 Telecom AB · Sweden | +46 72 … | 072 … |
| Bahnhof AB · Sweden | +46 72 … | 072 … |
| Beepsend · Sweden | +46 72 … | 072 … |
| 41 more in Sweden | ||
 Net*One · Zimbabwe | +263 72 … | 072 … |
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.