Prefix overview
Phone numbers in prefix 650-388
This page covers the 650-388 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
650-388
RATE CENTER
PALO ALTO
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
CA
Prefix range
The prefix 650-388 includes numbers from 6503880000 to 6503889999.
This range is associated with the PALO ALTO rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers