Prefix overview
Phone numbers in prefix 404-356
This page covers the 404-356 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
404-356
RATE CENTER
ATLANTA
CARRIER
SPOK, INC.
GA
Prefix range
The prefix 404-356 includes numbers from 4043560000 to 4043569999.
This range is associated with the ATLANTA rate center and was originally assigned to SPOK, INC..
Numbers in this prefix
20 numbers