Prefix overview
Phone numbers in prefix 620-477
This page covers the 620-477 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
620-477
RATE CENTER
HUMBOLDT
CARRIER
HD CARRIER LLC
KS
Prefix range
The prefix 620-477 includes numbers from 6204770000 to 6204779999.
This range is associated with the HUMBOLDT rate center and was originally assigned to HD CARRIER LLC.
Numbers in this prefix
20 numbers