Prefix overview
Phone numbers in prefix 314-388
This page covers the 314-388 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
314-388
RATE CENTER
LADUE
CARRIER
SOUTHWESTERN BELL
MO
Prefix range
The prefix 314-388 includes numbers from 3143880000 to 3143889999.
This range is associated with the LADUE rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers