Prefix overview
Phone numbers in prefix 831-533
This page covers the 831-533 prefix in the United States. It shows where numbers come from, which carrier is linked to the range, and how this block is structured.
If you are looking for a specific number, you can continue to its dedicated phone page. Otherwise, this page helps you understand the broader number block behind it.
PREFIX
831-533
RATE CENTER
BOULDERCRK
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
CA
Prefix range
The prefix 831-533 includes numbers from 8315330000 to 8315339999.
This range is associated with the BOULDERCRK rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers