Prefix overview
Phone numbers in prefix 551-423
This page covers the 551-423 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
551-423
RATE CENTER
HACKENSACK
CARRIER
NEW CINGULAR WIRELESS PCS, LLC - DC
NJ
Prefix range
The prefix 551-423 includes numbers from 5514230000 to 5514239999.
This range is associated with the HACKENSACK rate center and was originally assigned to NEW CINGULAR WIRELESS PCS, LLC - DC.
Numbers in this prefix
20 numbers