I learnt that in most countries, carriers provide Short Message Service (SMS) transit via SMS gateways. In other words, carriers allow cell phone numbers to be used as email address, if one wants to send an email and have it arrive as a text message on someone’s phone.

This blog lists all countries where carriers allow that:

hxxp://martinfitzpatrick[dot]name/list-of-email-to-sms-gateways/

By example, in USA, if the carrier is AT&T, you can send an email to 1234567890[at]txt[dot]att[dot]net and cell phone number 1234567890 will receive that email as an SMS. If the carrier is Verizon, you can send an email to 1234567890[at]vtext[dot]com.

However there are few of countries, like Peru, where carriers haven't allow that functionality. Maybe my question is out of place, but why is that? Why there are some countries where carriers don't allow that? Is it so expensive?

› See More: Carriers that don't allow e-mails to SMS Gateways