Prefix overview
Phone numbers in prefix 603-306
This page covers the 603-306 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
603-306
RATE CENTER
LEBANON
CARRIER
FREEDOM RING COMMUNICATIONS, LLC
NH
Prefix range
The prefix 603-306 includes numbers from 6033060000 to 6033069999.
This range is associated with the LEBANON rate center and was originally assigned to FREEDOM RING COMMUNICATIONS, LLC.
Numbers in this prefix
20 numbers