Prefix overview
Phone numbers in prefix 509-204
This page covers the 509-204 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
509-204
RATE CENTER
WALLAWALLA
CARRIER
ONVOY, LLC - WA
WA
Prefix range
The prefix 509-204 includes numbers from 5092040000 to 5092049999.
This range is associated with the WALLAWALLA rate center and was originally assigned to ONVOY, LLC - WA.
Numbers in this prefix
20 numbers