There are several countries that have domestic area codes 025 or similar. For example, within Hungary, 025 is the area code for Dunaújváros.
There is no telephone country code 025, in part because telephone country codes cannot begin with zero. Country codes beginning with +25 are in Africa, but you need one more digit. See the related question.
Telephone country code +93 is Afghanistan, and area code +93 25 (Afghan domestic telephone area code 025) is the city of Logar, south of Kabul.
The telephone country code for Vietnam is +84. The area code for Lang Son is 025, or +84 25 in international format.
026 appears to be a telephone area code, written in domestic format. It is impossible to know where it is without knowing what country you're asking about.
The telephone country code for Zimbabwe is +263. The area codes for Rusape are 025 (4-digit local numbers) and 0225 (7-digit local numbers), or +263 25 and +263 225 in international format.
The country code and area code of Changhua, Taiwan is 886, 47.
The country code and area code of ChillÌÁn, Chile is 56, 42.
The country code and area code of Asturias, Spain is 34, 884.
The country code and area code of Arganil, Portugal is 351, 235.
The country code and area code of Badajoz, Spain is 34, 824.
The country code and area code of Alava, Spain is 34, 845.
The country code and area code of Gelephu, Bhutan is 975, 6.
The country code and area code of Baghdad, Iraq is 964, 1.