Prefix overview
Phone numbers in prefix 603-300
This page covers the 603-300 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
603-300
RATE CENTER
CHESTER
CARRIER
METROPCS, INC.
NH
Prefix range
The prefix 603-300 includes numbers from 6033000000 to 6033009999.
This range is associated with the CHESTER rate center and was originally assigned to METROPCS, INC..
Numbers in this prefix
20 numbers