123-456-7890

The number is spoofed - faked. These sequential numbers are most often scammers calling from India. They want prevent you from calling back but to get the curious morons to answer.

123 456-7890 is a number on my AT&T account as
a contact number.
I can not erase or edit

I got a call from Pakistan but he just abused me a lot

I hate these phone calls.

Pls. Unknown call me conversation me who is person called me

I don't know about this number his irrigation to me

Impossible Number Thread - These are a fantastic draw for people so dumb the have to look up the number for 911.

Sounds like that "Married with Children" episode where Bud tells Kelly to call 911 and she says "What's the number?"
 :)

123 isnt an area code so it's a spam call and hope this helps

Called me at let night but no answer. Why they call?

Just got a call from +1234567890 45 mins ago couldn't answer it since I was sleeping. Looking at the number felt strange and so I ended up googling. I come from Bangladesh.

The number is strange only if you have trouble counting to 10 and then adding 2+2.
See posts on prior page from Rachel Tice, JackReacher and B.P. Reinhart.