Prefix overview
Phone numbers in prefix 667-400
This page covers the 667-400 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
667-400
RATE CENTER
BALTIMORE
CARRIER
BARR TELL USA, INC.
MD
Prefix range
The prefix 667-400 includes numbers from 6674000000 to 6674009999.
This range is associated with the BALTIMORE rate center and was originally assigned to BARR TELL USA, INC..
Numbers in this prefix
20 numbers