Prefix overview
Phone numbers in prefix 443-290
This page covers the 443-290 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
443-290
RATE CENTER
PARKVILLE
CARRIER
LEVEL 3 TELECOM OF MARYLAND, LLC - MD
MD
Prefix range
The prefix 443-290 includes numbers from 4432900000 to 4432909999.
This range is associated with the PARKVILLE rate center and was originally assigned to LEVEL 3 TELECOM OF MARYLAND, LLC - MD.
Numbers in this prefix
20 numbers