Prefix overview
Phone numbers in prefix 817-388
This page covers the 817-388 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
817-388
RATE CENTER
GRAPEVINE
CARRIER
SOUTHWESTERN BELL TELEPHONE COMPANY - TX
TX
Prefix range
The prefix 817-388 includes numbers from 8173880000 to 8173889999.
This range is associated with the GRAPEVINE rate center and was originally assigned to SOUTHWESTERN BELL TELEPHONE COMPANY - TX.
Numbers in this prefix
20 numbers