Prefix overview
Phone numbers in prefix 563-539
This page covers the 563-539 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
563-539
RATE CENTER
MONONA
CARRIER
NORTHEAST IOWA TEL. CO.
IA
Prefix range
The prefix 563-539 includes numbers from 5635390000 to 5635399999.
This range is associated with the MONONA rate center and was originally assigned to NORTHEAST IOWA TEL. CO..
Numbers in this prefix
20 numbers