What's with my Voicemail number here?

[MissWindy8200]

Please tell me that the US number that is shown attached is a "universal" mail box number? 

[billndarth3817]

It's the same one I have

[LongHiker · Accepted solution]

@MissWindy8200 That is the Voicemail number used by Tmobile. It would be the same for every Tmobile customer. 

Each carrier has their own.