Prefix overview
Phone numbers in prefix 720-306
This page covers the 720-306 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
720-306
RATE CENTER
DENVER
CARRIER
ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM
CO
Prefix range
The prefix 720-306 includes numbers from 7203060000 to 7203069999.
This range is associated with the DENVER rate center and was originally assigned to ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM.
Numbers in this prefix
20 numbers