Where is area code 497?

There is no area code +1 498 in North America (US, Canada, etc.); area codes never have '9' as the middle digit.

Country code +49 is Germany, and numbers in the +49 8 range are generally in southern Bavaria.

(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 North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)