There isn't a centralized, official database for cell phone providers' SMS and MMS email address suffixes, as these can vary by country and provider and may change over time. However, there are some community-maintained lists and resources that can be found online with a bit of searching. These lists are often compiled from user contributions and may not be complete or up-to-date.
For a programmatic solution, you might consider an API service that provides this information. Services like Twilio provide APIs that can send SMS messages without needing to know the carrier's email suffix.
If you're looking for a static list, you might have to compile it yourself from various sources. Here's a small example of how such a list might look in JSON format:
{
"providers": [
{
"name": "Verizon",
"sms": "@vtext.com",
"mms": "@vzwpix.com"
},
{
"name": "AT&T",
"sms": "@txt.att.net",
"mms": "@mms.att.net"
},
{
"name": "T-Mobile",
"sms": "@tmomail.net",
"mms": "@tmomail.net"
},
{
"name": "Sprint",
"sms": "@messaging.sprintpcs.com",
"mms": "@pm.sprint.com"
}
// ... more providers
]
}
You can use this JSON structure to store and retrieve the information in your application. If you're using a database, you could model this data in a table with columns for the provider name, SMS suffix, and MMS suffix.
Remember to respect privacy and legal considerations when sending unsolicited messages, and ensure you have the necessary permissions to contact people via their carrier's email-to-SMS/MMS gateway.