To dial it from your hotel in Italy, enter 00, then 49 (Germany's country code), then 89/264-349 (area code - without its initial 0 - and number). But I keep things simple by always just dialing the full phone number, including the area code or prefix. In some countries, much like at home, you can choose to drop the area code if dialing landline to landline within the same area code, while in other countries, you must dial the full number, even if calling across the street. Phone numbers and area codes can vary in length, even within the same country, and mobile phones utilize their own sets of prefixes. In the US, we're accustomed to seven-digit phone numbers and three-digit area codes, but European phone numbers and calling standards are a bit harder to predict.
