Prefix overview
Phone numbers in prefix 540-210
This page covers the 540-210 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
540-210
RATE CENTER
CALVERTON
CARRIER
ONVOY, LLC - VA
VA
Prefix range
The prefix 540-210 includes numbers from 5402100000 to 5402109999.
This range is associated with the CALVERTON rate center and was originally assigned to ONVOY, LLC - VA.
Numbers in this prefix
20 numbers