Prefix overview
Phone numbers in prefix 667-312
This page covers the 667-312 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
667-312
RATE CENTER
BALTIMORE
CARRIER
ATLANTECH ONLINE, INC. - MD
MD
Prefix range
The prefix 667-312 includes numbers from 6673120000 to 6673129999.
This range is associated with the BALTIMORE rate center and was originally assigned to ATLANTECH ONLINE, INC. - MD.
Numbers in this prefix
20 numbers