Prefix overview
Phone numbers in prefix 443-275
This page covers the 443-275 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
443-275
RATE CENTER
TOWSON
CARRIER
COMCAST IP PHONE, LLC
MD
Prefix range
The prefix 443-275 includes numbers from 4432750000 to 4432759999.
This range is associated with the TOWSON rate center and was originally assigned to COMCAST IP PHONE, LLC.
Numbers in this prefix
20 numbers