Prefix overview
Phone numbers in prefix 623-687
This page covers the 623-687 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
623-687
RATE CENTER
PHOENIX
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
AZ
Prefix range
The prefix 623-687 includes numbers from 6236870000 to 6236879999.
This range is associated with the PHOENIX rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers