The meaning of your question is unclear.
If you are trying to send a text to someone who has the same area code, but that person is currently physically located in a different country, you can send the text the same way you normally do. If the person has roaming service turned on, they will receive your text; otherwise, they will receive it when they get back.
If you are trying to send a text to someone who is from a different country, but their cell phone happens to have the same area code in their country that your cell phone has in your country, you can send them a text using the full international number, beginning with the plus symbol and the country code (examples: UK = +44, France = +33, Australia = +61).
If someone is texting from a different country, they need to enter the recipient number with the country code and area code. On GSM phones, you can enter the number in international format, like +1 212 555 0123 (with the plus sign, but without the spaces). Otherwise, replace the plus sign with the international access prefix (for example, 00, 011, or 0011, with other prefixes used in various countries).
In many (but not all) cases, you need to drop the leading '0' from the national number. For example, UK mobile number 07700 900123 becomes +44 7700 900123.
It is possible by send international SMS from your operator (expensive!) or by using any free texting service (like CallsFreeCalls).
Yes, different countries usually have different country codes, and each country code can have its own system of area codes.
The country code and area code of Changhua, Taiwan is 886, 47.
The country code and area code of ChillÌÁn, Chile is 56, 42.
If your international access prefix is '00' (the most commonly used prefix), then you are asking about country code +1, area code 825. Country code +1 is North America (USA, Canada, etc.), but there is no area code 825. On the other hand, if your international access prefix is '001,' then you are asking about country code +82, area code 5. Country code +82 is South Korea, and several different area codes, as well as personal number services, begin with 5. To minimize confusion, the country code should be quoted without the international access prefix, since different countries use different prefixes.
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.
The country code and area code of Gerona, Spain is 34, 872.
The country code and area code of Ane, Netherlands is 31, (0)524.