The Philippine Long Distance Telephone Company was founded on November 28, 1928.
The logo was changed to modify the telephone; this type of telephone was invented in 1927, two years before the company's founding.
The Philippine Long Distance Telephone Company was renamed to PLDT in 1983, introducing a "telephone receivers" symbol, formed through a repetition of the abstract figure of the telephone receiver to complete four sides.
A new logo launched during its 68th anniversary in November 1996. The new red color of the slightly revised symbol is meant to convey "energy, warmth, heart, speed and life." The borders of the old logo were removed to signify the company's openness to change in the competitive global environment and to the transition to the next millennium.
In April 2016, the company dropped the "Long Distance Telephone" from its corporate name and changed its name from Philippine Long Distance Telephone Company to PLDT, Inc. to better represent the company's current "thrust to decisively shift its business to data-driven services". The corporate name change happened two months before PLDT replaced the iconic "telephone receivers" symbol with a triangle logo on June 13.
On June 13, 2016, PLDT and its subsidiary Smart unveiled their new logos and identity.
This logo is shaped like a triangle with the three sides representing the company's business pillars - exceptional people, meaningful innovations, and its valuable customers. The triangle is also the symbol for Delta, the fourth letter in the Greek alphabet, which stands for “change”.
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