I live in Thailand though continue to retain a US cell phone number. Starting last October, my caller ID stopped working. For years, the phone appropriately displayed the cell phone number that was calling me (a US number calling my US number while I was in Asia). In October, this all stopped, and whenever I received a call from the USA, the number "0600036010" would display. Calling that number back resulted in the Thai cell service stating that the number doesn't exist. An internet search of the cell phone number 0600036010 reveals that it belongs to Microsoft spam service. Obviously, this is annoying, as I have no idea who is trying to call me. Multiple phone calls to T Mobile service resulted in puzzled responses (ie, "we don't know").
Last week, for some reason, the caller ID started acting appropriately, showing the US numbers that were calling me. But this only persisted for one day.
Inquiries to the two main Thai cellular providers (AIS, D TAC), resulted in the same "it's not us". They can't recognize the 0600036010 number.
It was suggested that T Mobile might be using some sort of spam identification service; T Mobile sends the call to the spam identification service, which might then strip the caller ID information, and forward the call (the spam service identfiying as 0600036010).
Would really appreciate help with this. Caller ID worked for many years before, I've been a customer for quite a while. Caller ID stopped working in October; with the extremely rare event where it works appropriately for one day, I know that this can be fixed. There is something "in the middle" which is screwing up the caller ID from working appropriately. Been paying for caller ID for the past many years; not getting the service addition any more.
Thanks. Phone is Samsung Galaxy Note 10 plus with dual SIM (USA and Thai), unlocked.