Prefix overview
Phone numbers in prefix 787-278
This page covers the 787-278 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
787-278
RATE CENTER
DORADO
CARRIER
PUERTO RICO TEL. CO.
PR
Prefix range
The prefix 787-278 includes numbers from 7872780000 to 7872789999.
This range is associated with the DORADO rate center and was originally assigned to PUERTO RICO TEL. CO..
Numbers in this prefix
20 numbers