Montebello, California, is in area code +1 323. Note, however, that area code boundaries in California do not exactly follow city boundaries.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
The area of Montebello Vicentino is 21 square kilometers.
The area of Montebello Ionico is 55.7 square kilometers.
The area of Montebello sul Sangro is 5,000,000.0 square meters.
The area of Montebello della Battaglia is 15.8 square kilometers.
The area of Montebello di Bertona is 21 square kilometers.
Montebello is mostly a desert. It is usually considered a valley but it is scientifically proven that it is a deseert
Corcoran, California, is in area code 559.
The area code for Fremont California is 510.
Fairfield, California, including Cordelia, is in area code 707.
Santa Monica is in area code 310 and overlay area code 424.
Greendale (Yolo County), California, is in area code +1 916.
The country code and area code of Valencia, Spain is 34, 860.