Prefix overview
Phone numbers in prefix 840-204
This page covers the 840-204 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
840-204
RATE CENTER
S BERNDINO
CARRIER
NEW CINGULAR WIRELESS PCS, LLC
CA
Prefix range
The prefix 840-204 includes numbers from 8402040000 to 8402049999.
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