Prefix overview
Phone numbers in prefix 408-488
This page covers the 408-488 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
408-488
RATE CENTER
SNJS WEST
CARRIER
SPOK, INC.
CA
Prefix range
The prefix 408-488 includes numbers from 4084880000 to 4084889999.
This range is associated with the SNJS WEST rate center and was originally assigned to SPOK, INC..
Numbers in this prefix
20 numbers