The History of Caller ID

A plotted history of the caller ID, from Theodore Paraskevakos to Next Caller®

The first prototype of modern Caller ID was developed in
1971 by Theodore Paraskevakos. In patents related to
those devices, he proposed to send alphanumeric
information to the receiving apparatus, and this was
received with great success.
Paraskevakos' invention was
improved by Japanese inventor Kazuo Hashimoto,
who in 1976 built a prototype of a caller
identification display device that could receive
caller information.
In 1984, Bell South's marketing department
named this identification system 'Caller ID'.
The first market trial was conducted in Orlando, Florida.
In 1995, "call waiting ID" was
introduced by Bellcore, which allowed caller ID to be
transmitted while a user was simultaneously on the

This was an integration of caller ID and call waiting,
which is still used today.

.Mobile users surpassed landline users for the first time in history

Because most networks do not support the infrastructure to

transmit caller data, 2002 marked the inflection point of steadily

.decreasing effectiveness of traditional caller ID

For this reason, carriers report the name as "unavailable" or

wireless caller." Over the next 10 years, cell phones would"

outnumber landlines 6:1

Gianni and Ian founded

to improve existing caller ID networks. By creating

,a centralized, user maintained database

Next Caller is able to deliver rich profiles for over 245M

.wireless, landline, and business callers