Prefix overview
Phone numbers in prefix 840-203
This page covers the 840-203 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
840-203
RATE CENTER
S BERNDINO
CARRIER
NEW CINGULAR WIRELESS PCS, LLC
CA
Prefix range
The prefix 840-203 includes numbers from 8402030000 to 8402039999.
This range is associated with the S BERNDINO rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC.
Numbers in this prefix
20 numbers