Prefix overview
Phone numbers in prefix 503-491
This page covers the 503-491 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
503-491
RATE CENTER
GRESHAM
CARRIER
ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER
OR
Prefix range
The prefix 503-491 includes numbers from 5034910000 to 5034919999.
This range is associated with the GRESHAM rate center and was originally assigned to ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER.
Numbers in this prefix
20 numbers