Prefix overview
Phone numbers in prefix 661-307
This page covers the 661-307 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
661-307
RATE CENTER
BKFD MAIN
CARRIER
AMERICAN MESSAGING SERVICES, LLC
CA
Prefix range
The prefix 661-307 includes numbers from 6613070000 to 6613079999.
This range is associated with the BKFD MAIN rate center and was originally assigned to AMERICAN MESSAGING SERVICES, LLC.
Numbers in this prefix
20 numbers