Prefix overview
Phone numbers in prefix 770-400
This page covers the 770-400 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
770-400
RATE CENTER
NEWNAN
CARRIER
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
GA
Prefix range
The prefix 770-400 includes numbers from 7704000000 to 7704009999.
This range is associated with the NEWNAN rate center and was originally assigned to BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL.
Numbers in this prefix
20 numbers