Prefix overview
Phone numbers in prefix 667-487
This page covers the 667-487 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
667-487
RATE CENTER
BALTIMORE
CARRIER
CALLWORKS CORPORATION
MD
Prefix range
The prefix 667-487 includes numbers from 6674870000 to 6674879999.
This range is associated with the BALTIMORE rate center and was originally assigned to CALLWORKS CORPORATION.
Numbers in this prefix
20 numbers