Prefix overview
Phone numbers in prefix 475-850
This page covers the 475-850 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
475-850
RATE CENTER
NORWALK
CARRIER
BARR TEL USA, INC. - CT
CT
Prefix range
The prefix 475-850 includes numbers from 4758500000 to 4758509999.
This range is associated with the NORWALK rate center and was originally assigned to BARR TEL USA, INC. - CT.
Numbers in this prefix
20 numbers