I've gotten 7 calls from this and several other numbers in about 3 days.  They only differ in the last 3 digits.
February 21 10:49    30157256231210
February 20 10:49    30157256231211
February 19   2:17    30157256231221
February 19   1:52    30157256231103
February 19   1:16    30157256231210
February 19 12:45    30157256231203
February   7   2:38    30157256231221

One that I answered on the 19th asked for the person that previously had my number, another jabbered at me with an Indian accent that I couldn't understand and immediately hung up.

I got one just now from the same number as the 21st

medical card from pharmacy plus

I just got a call from the following number 30157256231221 and it took a long time for the person to respond and when they finally said hello it was with a very thick Indian accent.  He asked specifically for me by name and then when I said and you are the line went dead.  On my caller id it came up as Maryland and I have seen several of these calls on my caller id but have never been home when they called until today.  I am sick and tired of getting weird calls and want them stopped.  The phone companies can do some thing  if they would but they will not until a person complains and complains.  They can stop these fraudlant calls if they would do but they will not.

one they do call you by name 2 they say they are an identity theft protection and are giving out a PIN numberI've asked him not to call several timesbut they continue and yes a very thick accent