Prefix overview
Phone numbers in prefix 667-338
This page covers the 667-338 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
667-338
RATE CENTER
CROFTON
CARRIER
ONVOY, LLC - MD
MD
Prefix range
The prefix 667-338 includes numbers from 6673380000 to 6673389999.
This range is associated with the CROFTON rate center and was originally assigned to ONVOY, LLC - MD.
Numbers in this prefix
20 numbers