[woobar]

> sending an OTP to my US number (and US number alone) for any transaction, making it impossible for me to move money when abroad

Strictly speaking it doesn't make it impossible. You have made a choice not to pay roaming fees while using your USA number while abroad.

[codegeek]

SMS on roaming can be a hit or miss. I travel internationally every year and I am always worried that some SMSs wont reach and it happens from time to time. I especially hate those product/services that only do SMS based 2FA.

[harshalizee]

Nope. I travel to EU often with roaming on. OTP SMSs for many services don't come through. It's a real pain.

[woobar]

Very strange. How about regular SMS? Are they dropped too? I had zero issues with TMo, and I don't even need roaming for this.

[harshalizee]

It's weird, regular SMSs do come through, as far as I know. It's hard to tell as I don't get many SMSs, mostly iMessage and Whatsapp. I'm on AT&T, and something about automated messages from those 5-6 digit numbers never show up when you want them to.