Prefix overview
Phone numbers in prefix 510-280
This page covers the 510-280 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
510-280
RATE CENTER
OKLD BKLY
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC
CA
Prefix range
The prefix 510-280 includes numbers from 5102800000 to 5102809999.
This range is associated with the OKLD BKLY rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC.
Numbers in this prefix
20 numbers