Operators

 
Welcome to
Telephone World

Telephone World is a hobby website devoted to the mysterious device known as the Telephone. People have used "the phone" for more than 140 years, yet very few of us know what goes on behind the scenes when we make or receive a phone call. This website should help enlighten you on this useful yet mysterious device that is in most every home and business in the industrialized world.

What's New

On occasion (or when we have time), we will add or change something here at Telephone World. Here is a listing of significant changes.

T-Mobile shuts down 2G network

From the “I didn’t even know it was still around” department. Apparently T-Mobile in the USA shut down their 2G network on Monday August 3, 2026. Were there any customers on the 2G network? Was this the original 2G that T-Mobile had, or was this something they inherited from Sprint? Either way, sad to see […]
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Joybubbles Documentary

(Admin note: I actually talked to Joybubbles a few times before his passing in 2007.) Famous Phone Phreaker Joybubbles is now in a documentary that is being showcased at several viewings throughout the US. I do not know if or when it will be available for wide release. https://www.inverse.com/entertainment/joybubbles-documentary-rachael-morrison-interview
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The End of Landline in Hitchcock, OK

December 24, 2025 – The inevitable has started. AT&T in Oklahoma (former Southwest Bell) is slowly turning off central offices. The first appears to be a small town called Hitchcock, OK, about an hour NW of Oklahoma City. This is a VERY small town that was served by a 5ESS remote switch. This is a […]
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The last 4ESS has been shut down

December 11, 2025 (Updated March 2026) – I heard from an industry contact that the Lansing, MI 4ESS switch (LNNGMIMN50T) is slated to be powered off tonight. Traffic through the switch has already been rerouted elsewhere. This is considered to be the last 4ESS in the lower 48 states. Only the 4ESS in Anchorage, AK […]
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This Is A Recording is now part of Telephone World

May 9, 2025 – Long time website This Is a Recording (originally by Jennifer Martino) is now owned and operated by Telephone World. We thank Jenn for her hard efforts in running the site for many years. We wish to continue the tradition for many more years to come. If you wish to visit the […]
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Phil McCarter’s collection to be preserved at new museum in Denver

March 14, 2025 – The entire collection of long time telephone collector Phil McCarter of Salem, OR (also known as SXSPhil) will be moving to the Connections Museum. Most fans of telephony know of the awesome museum in Seattle, WA with their collection of switching equipment (Panel, #1XB, #5XB, DMS-10, 3ESS, etc.) and how much […]
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A Visit to the Ellsworth Telephone Museum – October 2024

In October 2024, I had the opportunity to visit The Telephone Museum in Ellsworth, Maine. This museum had so much to see! It features many different kinds of telephones, manual cordboards, several Step by Step switches, several All-Relay switches – and finally an entire #3 crossbar switch and a partial #5 crossbar switch. This is […]
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Preserving a #5ESS Switch for Posterity

In June 2023, Telephone World was invited to participate in preserving a small #5ESS switch at a rural telephone company for posterity. This was no small feat as you can imagine! Check out the Preserving a #5ESS Switch for all the details and a TON of pictures!
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The Beginning of the End of AT&T Operators Started in 1992

It’s hard to imagine almost 30 years ago that the first Interactive Voice Response (IVR) systems were coming online to eventually replace operators. In fact, AT&T no longer has an operators. At all! They got rid of them several years ago. This video came out in October 2021, but it was recorded back in 1992. […]
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