Prefix overview
Phone numbers in prefix 307-421
This page covers the 307-421 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
307-421
RATE CENTER
CHEYENNE
CARRIER
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY
WY
Prefix range
The prefix 307-421 includes numbers from 3074210000 to 3074219999.
This range is associated with the CHEYENNE rate center and was originally assigned to CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY.
Numbers in this prefix
20 numbers