Prefix overview
Phone numbers in prefix 978-428
This page covers the 978-428 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
978-428
RATE CENTER
AYER
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
MA
Prefix range
The prefix 978-428 includes numbers from 9784280000 to 9784289999.
This range is associated with the AYER rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers