Telephone country code +680 (dialed as 00 680 from many places) is Palau. All numbers have 7 digits after country code +680.
Mobile numbers begin with +680 775, +680 779, or +680 6A0 where A=2,3,4,6,8,9
(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.)
The Federated States of Micronesia (Chuuk, Kosrae, Pohnpei, and Yap) use country code +691. There are no area codes. The local number is 7 digits.
The country code and area code of Aimeliik, Palau is 680, 544.
The country code and area code of Airai, Palau is 680, 587.
The country code and area code of Angaur, Palau is 680, 277.
The country code and area code of Melekeok, Palau is 680, 654.
The country code and area code of Ngaraard, Palau is 680, 824.
The country code and area code of Ngarchelong, Palau is 680, 855.
The country code and area code of Ngardmau, Palau is 680, 747.
The country code and area code of Ngatpang, Palau is 680, 535.
The country code and area code of Ngeremlengui, Palau is 680, 733.
The country code and area code of Peleliu, Palau is 680, 345.
The country code and area code of Sonsorol, Palau is 680, 255.