‘112’ is the emergency phone number and can be dialed anywhere in continental Europe (no matter where you are). It is important to immediately specify your native language immediately (i.e. English) and then stay on the line while you wait for the operator. Get ‘112’ into your head!
While in Britain, the United Kingdom, and Ireland, their emergency phone number is ‘999.’
And Americans please note dialing “911” will not do a darn thing in Europe, nor will dialing “000” if you’re from Australia.