Prefix overview
Phone numbers in prefix 503-440
This page covers the 503-440 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
503-440
RATE CENTER
SEASIDE
CARRIER
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR
OR
Prefix range
The prefix 503-440 includes numbers from 5034400000 to 5034409999.
This range is associated with the SEASIDE rate center and was originally assigned to CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR.
Numbers in this prefix
20 numbers