Prefix overview
Phone numbers in prefix 310-220
This page covers the 310-220 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
310-220
RATE CENTER
HAWTHORNE
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
CA
Prefix range
The prefix 310-220 includes numbers from 3102200000 to 3102209999.
This range is associated with the HAWTHORNE rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers