Prefix overview
Phone numbers in prefix 443-321
This page covers the 443-321 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
443-321
RATE CENTER
ANNAPOLIS
CARRIER
PAETEC ITEL, LLC
MD
Prefix range
The prefix 443-321 includes numbers from 4433210000 to 4433219999.
This range is associated with the ANNAPOLIS rate center and was originally assigned to PAETEC ITEL, LLC.
Numbers in this prefix
20 numbers