Where is area code 157?

Answer 1

There is no area code 157 in North America (USA, Canada, etc.). North American area codes cannot begin with '1'.

Other countries may have an area code 157 or similar.

Telephone country code +1 is North America, but you need the following three digits (the area code) to narrow down the location any further.

(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.)