Prefix overview
Phone numbers in prefix 817-310
This page covers the 817-310 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
817-310
RATE CENTER
GRAPEVINE
CARRIER
SOUTHWESTERN BELL TELEPHONE COMPANY - TX
TX
Prefix range
The prefix 817-310 includes numbers from 8173100000 to 8173109999.
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