Prefix overview
Phone numbers in prefix 640-777
This page covers the 640-777 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
640-777
RATE CENTER
ALLENTOWN
CARRIER
TERRA NOVA TELECOM INC.
NJ
Prefix range
The prefix 640-777 includes numbers from 6407770000 to 6407779999.
This range is associated with the ALLENTOWN rate center and was originally assigned to TERRA NOVA TELECOM INC..
Numbers in this prefix
20 numbers