Prefix overview
Phone numbers in prefix 240-309
This page covers the 240-309 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
240-309
RATE CENTER
LEONARDTN
CARRIER
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
MD
Prefix range
The prefix 240-309 includes numbers from 2403090000 to 2403099999.
This range is associated with the LEONARDTN rate center and was originally assigned to CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD.
Numbers in this prefix
20 numbers