Prefix overview
Phone numbers in prefix 603-454
This page covers the 603-454 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
603-454
RATE CENTER
SUNAPEE
CARRIER
UNITED STATES CELLULAR - NH
NH
Prefix range
The prefix 603-454 includes numbers from 6034540000 to 6034549999.
This range is associated with the SUNAPEE rate center and was originally assigned to UNITED STATES CELLULAR - NH.
Numbers in this prefix
20 numbers