Prefix overview
Phone numbers in prefix 712-255
This page covers the 712-255 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
712-255
RATE CENTER
SIOUX CITY
CARRIER
QWEST CORPORATION
IA
Prefix range
The prefix 712-255 includes numbers from 7122550000 to 7122559999.
This range is associated with the SIOUX CITY rate center and was originally assigned to QWEST CORPORATION.
Numbers in this prefix
20 numbers