The country dialling code for Switzerland is +41or 0041 (they're both identical).
If you want to make a call to Switzerland from abroad, you have to dial the following country code +41 (or 0041) followed by the national telephone number.
National telephone number: 0840 123 456 (for local calls)
International telephone number: +41 840 123 456 (for calling from abroad to Switzerland)
Capital : Bern
Population : 8 256 000 Inhabitants
Time : 2018-12-13 21:03
Time zone : Europe/Zurich