06 is not a country code. Numbers inside a country start like this: Sharjah, Ajman, Umm Al-Qaiwain (United Arab Emirates), Afone (France), ASPIDER Solutions Nederland B.V. (Netherlands), etecsa (Cuba) 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 |
|---|---|---|
 Sharjah, Ajman, Umm Al-Qaiwain · United Arab Emirates | +971 6 … | 06 … |
 Afone · France | +33 6 … | 06 … |
| Airbus Defence and Space · France | +33 6 … | 06 … |
| Alphalink · France | +33 6 … | 06 … |
| 25 more in France | ||
 ASPIDER Solutions Nederland B.V. · Netherlands | +31 6 … | 06 … |
| Glotell B.V (V-Tell NL) · Netherlands | +31 6 … | 06 … |
| KPN · Netherlands | +31 6 … | 06 … |
| 12 more in Netherlands | ||
 etecsa · Cuba | +53 6 … | 06 … |
 Vaasa · Finland | +358 6 … | 06 … |
 Osaka, Osaka · Japan | +81 6 … | 06 … |
 Amman · Jordan | +962 6 … | 06 … |
| Greater Amman · Jordan | +962 6 … | 06 … |
 Monaco Telecom · Monaco | +377 6 … | 06 … |
 Al Hourria Telecom · Morocco | +212 6 … | 06 … |
| Inwi · Morocco | +212 6 … | 06 … |
| Maroc Telecom · Morocco | +212 6 … | 06 … |
| 1 more in Morocco | ||
 Dannevirke · New Zealand | +64 6 … | 06 … |
| Featherston · New Zealand | +64 6 … | 06 … |
| Gisborne · New Zealand | +64 6 … | 06 … |
| 23 more in New Zealand | ||
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.