Prefix overview
Phone numbers in prefix 603-458
This page covers the 603-458 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
603-458
RATE CENTER
SALEM
CARRIER
COMCAST IP PHONE, LLC
NH
Prefix range
The prefix 603-458 includes numbers from 6034580000 to 6034589999.
This range is associated with the SALEM rate center and was originally assigned to COMCAST IP PHONE, LLC.
Numbers in this prefix
20 numbers