Prefix overview
Phone numbers in prefix 603-278
This page covers the 603-278 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
603-278
RATE CENTER
BRETTON WD
CARRIER
BRETTON WOODS TEL. CO.
NH
Prefix range
The prefix 603-278 includes numbers from 6032780000 to 6032789999.
This range is associated with the BRETTON WD rate center and was originally assigned to BRETTON WOODS TEL. CO..
Numbers in this prefix
20 numbers