Prefix overview
Phone numbers in prefix 563-564
This page covers the 563-564 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
563-564
RATE CENTER
DUBUQUE
CARRIER
T-MOBILE USA, INC.
IA
Prefix range
The prefix 563-564 includes numbers from 5635640000 to 5635649999.
This range is associated with the DUBUQUE rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers