Prefix overview
Phone numbers in prefix 512-237
This page covers the 512-237 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
512-237
RATE CENTER
SMITHVILLE
CARRIER
SOUTHWESTERN BELL
TX
Prefix range
The prefix 512-237 includes numbers from 5122370000 to 5122379999.
This range is associated with the SMITHVILLE rate center and was originally assigned to SOUTHWESTERN BELL.
Numbers in this prefix
20 numbers