Prefix overview
Phone numbers in prefix 734-380
This page covers the 734-380 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
734-380
RATE CENTER
ROMULUS
CARRIER
SPOK, INC.
MI
Prefix range
The prefix 734-380 includes numbers from 7343800000 to 7343809999.
This range is associated with the ROMULUS rate center and was originally assigned to SPOK, INC..
Numbers in this prefix
20 numbers