Prefix overview
Phone numbers in prefix 443-337
This page covers the 443-337 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
443-337
RATE CENTER
SPARROWSPT
CARRIER
CORE COMMUNICATIONS, INC.- MD
MD
Prefix range
The prefix 443-337 includes numbers from 4433370000 to 4433379999.
This range is associated with the SPARROWSPT rate center and was originally assigned to CORE COMMUNICATIONS, INC.- MD.
Numbers in this prefix
20 numbers