Prefix overview
Phone numbers in prefix 667-221
This page covers the 667-221 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
667-221
RATE CENTER
SALISBURY
CARRIER
TELNYX LLC
MD
Prefix range
The prefix 667-221 includes numbers from 6672210000 to 6672219999.
This range is associated with the SALISBURY rate center and was originally assigned to TELNYX LLC.
Numbers in this prefix
20 numbers