Prefix overview
Phone numbers in prefix 641-256
This page covers the 641-256 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
641-256
RATE CENTER
CRESTON
CARRIER
NEW CINGULAR WIRELESS PCS, LLC - IL
IA
Prefix range
The prefix 641-256 includes numbers from 6412560000 to 6412569999.
This range is associated with the CRESTON rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC - IL.
Numbers in this prefix
20 numbers