0691 is not a country code. Numbers inside a country start like this: Orange (Moldova), Xishuangbanna, Yunnan (China), BITĖ (Lithuania), Munsigonj/Tongibari (Bangladesh) 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 |
|---|---|---|
 Orange · Moldova | +373 691 … | 0691 … |
 Xishuangbanna, Yunnan · China | +86 691 … | 0691 … |
 BITĖ · Lithuania | +370 691 … | 0691 … |
 Munsigonj/Tongibari · Bangladesh | +880 691 … | 0691 … |
 Dauphin Telecom · Guadeloupe | +590 691 … | 0691 … |
| Digicel · Guadeloupe | +590 691 … | 0691 … |
| Free Caraïbe · Guadeloupe | +590 691 … | 0691 … |
| 1 more in Guadeloupe | ||
 Torpshammar · Sweden | +46 691 … | 0691 … |
 Airtel · Tanzania | +255 691 … | 0691 … |
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.