Prefix overview
Phone numbers in prefix 203-300
This page covers the 203-300 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
203-300
RATE CENTER
DANBURY
CARRIER
OMNIPOINT COMMUNICATIONS, INC. - CT
CT
Prefix range
The prefix 203-300 includes numbers from 2033000000 to 2033009999.
This range is associated with the DANBURY rate center and was originally assigned to OMNIPOINT COMMUNICATIONS, INC. - CT.
Numbers in this prefix
20 numbers