Prefix overview
Phone numbers in prefix 475-400
This page covers the 475-400 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
475-400
RATE CENTER
STAMFORD
CARRIER
ONVOY, LLC - CT
CT
Prefix range
The prefix 475-400 includes numbers from 4754000000 to 4754009999.
This range is associated with the STAMFORD rate center and was originally assigned to ONVOY, LLC - CT.
Numbers in this prefix
20 numbers