Prefix overview
Phone numbers in prefix 203-398
This page covers the 203-398 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
203-398
RATE CENTER
NORWALK
CARRIER
SPOK, INC.
CT
Prefix range
The prefix 203-398 includes numbers from 2033980000 to 2033989999.
This range is associated with the NORWALK rate center and was originally assigned to SPOK, INC..
Numbers in this prefix
20 numbers