Prefix overview
Phone numbers in prefix 856-477
This page covers the 856-477 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
856-477
RATE CENTER
COLLINGSWD
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ
NJ
Prefix range
The prefix 856-477 includes numbers from 8564770000 to 8564779999.
This range is associated with the COLLINGSWD rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ.
Numbers in this prefix
20 numbers