Prefix overview
Phone numbers in prefix 645-654
This page covers the 645-654 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
645-654
RATE CENTER
MIAMI
CARRIER
ONVOY SPECTRUM, LLC
FL
Prefix range
The prefix 645-654 includes numbers from 6456540000 to 6456549999.
This range is associated with the MIAMI rate center and was originally assigned to ONVOY SPECTRUM, LLC.
Numbers in this prefix
20 numbers