Prefix overview
Phone numbers in prefix 737-203
This page covers the 737-203 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
737-203
RATE CENTER
AUSTIN
CARRIER
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX
TX
Prefix range
The prefix 737-203 includes numbers from 7372030000 to 7372039999.
This range is associated with the AUSTIN rate center and was originally assigned to MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX.
Numbers in this prefix
20 numbers