Prefix overview
Phone numbers in prefix 563-542
This page covers the 563-542 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
563-542
RATE CENTER
DUBUQUE
CARRIER
UNITED STATES CELLULAR - IA
IA
Prefix range
The prefix 563-542 includes numbers from 5635420000 to 5635429999.
This range is associated with the DUBUQUE rate center and was originally assigned to UNITED STATES CELLULAR - IA.
Numbers in this prefix
20 numbers