00 - Bulgaria exit code to dial first when calling international
421 - Slovak country code must be dialed next
00 +
421 +
Local Number - Overall dialing code format
World Times:
The time in Bulgaria is now 20:33:46 PM(08:33:46 PM)
The time in Slovakia is now 19:33:46 PM(07:33:46 PM)
How to call Slovakia from Bulgaria:
World Times:
Mobile Codes: