Prefix overview
Phone numbers in prefix 641-255
This page covers the 641-255 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
641-255
RATE CENTER
MASON CITY
CARRIER
T-MOBILE USA, INC.
IA
Prefix range
The prefix 641-255 includes numbers from 6412550000 to 6412559999.
This range is associated with the MASON CITY rate center and was originally assigned to T-MOBILE USA, INC..
Numbers in this prefix
20 numbers