Prefix overview
Phone numbers in prefix 667-300
This page covers the 667-300 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
667-300
RATE CENTER
COLUMBIA
CARRIER
CORE COMMUNICATIONS, INC.- MD
MD
Prefix range
The prefix 667-300 includes numbers from 6673000000 to 6673009999.
This range is associated with the COLUMBIA rate center and was originally assigned to CORE COMMUNICATIONS, INC.- MD.
Numbers in this prefix
20 numbers