I have had the exact same thing happen today the first was from the DC number202-697-9381and then just now the TX stupid scammers I will never call them back but it's just sad that people do call them back.
We also got 2 calls from this number 346 971 6256, Caller ID Cell Phone TX. I know this is a scam.
I feel for people who may actually not understand this and give them their info, especially seniors.
I have received two messages for the same thing this morning at home. I actually called back to 346-971-6256 from my company conference phone. It ringed about 20 times and surprisingly a middle age woman with American accent answered the phone with a background noise like a call center. I did not say anything and she said Hello twice and hung up. I was wondering this criminal did have a nice voice. Man!