Prefix overview
Phone numbers in prefix 445-544
This page covers the 445-544 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
445-544
RATE CENTER
PHLDLPHZN1
CARRIER
ONVOY SPECTRUM, LLC
PA
Prefix range
The prefix 445-544 includes numbers from 4455440000 to 4455449999.
This range is associated with the PHLDLPHZN1 rate center and was originally assigned to ONVOY SPECTRUM, LLC.
Numbers in this prefix
20 numbers