Prefix overview
Phone numbers in prefix 410-423
This page covers the 410-423 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
410-423
RATE CENTER
COLUMBIA
CARRIER
TELEPORT COMMUNICATIONS AMERICA, LLC - MD
MD
Prefix range
The prefix 410-423 includes numbers from 4104230000 to 4104239999.
This range is associated with the COLUMBIA rate center and was originally assigned to TELEPORT COMMUNICATIONS AMERICA, LLC - MD.
Numbers in this prefix
20 numbers