Prefix overview
Phone numbers in prefix 603-438
This page covers the 603-438 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
603-438
RATE CENTER
NASHUA
CARRIER
OMNIPOINT MIAMI E LICENSE, LLC
NH
Prefix range
The prefix 603-438 includes numbers from 6034380000 to 6034389999.
This range is associated with the NASHUA rate center and was originally assigned to OMNIPOINT MIAMI E LICENSE, LLC.
Numbers in this prefix
20 numbers