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Phil Lapsley

Exploding the Phone Paperback – February 11, 2014

by Phil Lapsley (Author)

(512)

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Before smartphones, back even before the Internet and personal computer, a misfit group of technophiles, blind teenagers, hippies, and outlaws figured out how to hack the world’s largest machine: the telephone system. Starting with Alexander Graham Bell’s revolutionary harmonic telegraph,” by the middle of the twentieth century the phone system had grown into something extraordinary, a web of cutting-edge switching machines and human operators that linked together millions of people like never before. But the network had a billion-dollar flaw, and once people discovered it, things would never be the same.

Exploding the Phone tells this story in full for the first time. It traces the birth of long-distance communication and the telephone, the rise of AT&T’s monopoly, the creation of the sophisticated machines that made it all work, and the discovery of Ma Bell’s Achilles’ heel. Phil Lapsley expertly weaves together the clandestine underground of phone phreaks” who turned the network into their electronic playground, the mobsters who exploited its flaws to avoid the feds, the explosion of telephone hacking in the counterculture, and the war between the phreaks, the phone company, and the FBI.

The product of extensive original research, Exploding the Phone is a ground-breaking, captivating book.

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Print length

448 pages
Language

English
Publisher

Grove Press
Publication date

February 11, 2014
Dimensions

5.5 x 1.25 x 8 inches
ISBN-10

0802122280
ISBN-13

978-0802122285

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Editorial Reviews

Review

An Amazon, Seattle Times, and Kirkus Reviews Best Book of the Year

Phil Lapsley's Exploding the Phone is an authoritative, jaunty and enjoyable account of their sometimes comical, sometimes impressive and sometimes disquieting misdeeds. . . . The author's love of his subject pervades Exploding the Phone and persuaded this reader, at least, that the phone phreaks are worthy of thoughtful attention.”
Wall Street Journal

Brilliantly researched.”
Atlantic

A fantastically fun romp through the world of early phone hackers, who sought free long distance, and in the end helped launch the computer era.”
Seattle Times

A rollicking history of the telephone system and the hackers who exploited its flaws. [Lapsley] weaves together a brilliant tapestry of richly detailed stories. . . . A first-rate chronicle of an unexamined subculture.”
Kirkus Reviews (starred review)

A fascinating book steeped in the rich history of phreakers and hackers.”
Xeni Jardin, BoingBoing.net

As a bit of tech historywith themes that resonate todayit can't be beat.
Gizmodo.com

Long before we ever came onto the scene there was . . . a ragtag group of folks who took the global phone network as the target of their hacking. Exploding the Phone is among the most comprehensive and engaging histories of that community ever published.”
Electronic Frontier Foundation, EFF’s Reading List: Books of 2013”

Exploding the Phone is an extraordinary book. . . . To have such a significant, yet underground story captured in such brilliant detail is rare, especially without turning it into a one-sided hero’s tale. Exploding the Phone is nearly perfect. I have three print copies, all paid for and autographed. You can’t have too many miracles lying around the house.”
Jason Scott

Eminently interesting and completely original.”
Daily Beast

A rocking great read about the unknown teenagers and hobbyists who defied AT&T when it was foolish to do so. In Lapsley's magnificent research he has uncovered what amounts to a secret pre-history of the computer and internet revolutions.”
Tim Wu, author of The Master Switch

With terrific reporting and story-telling. Phil Lapsley has put voluptuous flesh and bones on the legendary tales of the phone phreaks.”
Steven Levy, author of Hackers and In the Plex

"The definitive account of the first generation of network hackers. . . . At turns a technological love story, a counter cultural history and a generation-spanning epic, [Exploding the Phone] is obsessively researched and told with wit and clarity."
Kevin Poulsen, news editor of Wired.com and author of Kingpin

At once enjoyable and educational.”
CNET

With verve and technical accuracy, Phil Lapsley captures the excitement of the days when phone hackers explored Ma Bell's cabled paradise of dial phones and electromechanical switches. . . . . Here's the intriguing story of those first electronic adventurerstinkerers who'd bypass a pay phone with a couple transistors or reach around the world by whistling.”
Cliff Stoll, author of The Cuckoo's Egg

"A fascinating story about a period of time that I lived through but didn't know much about. I can't imagine how much work Lapsley had to do to write this bookit is remarkably well-researched, fun to read, and deserves great praise."
Vint Cerf, Internet Pioneer and Chief Internet Evangelist, Google, Inc.

Before he was the god of sexy computers, Steve Jobs sold blue boxes to Hollywood stars and Bay Area hippies. Exploding the Phone connects the cultural lines that run from hacking Ma Bell to building personal computers. Here, for your amusement, is the story of the frothy counterculture that helped create today’s connected world.”
Thomas A. Bass, author of The Eudaemonic Pie and The Spy Who Loved Us

"Seldom are criminals this much fun."
Robert Sabbag, author of Snow Blind

An extremely interesting and engrossing read.”
Slashdot

A highly engaging history of the telephone itself and plenty of intrigue.”
Booklist

"Phil Lapsley's great history of those hackers is packed with schemes, plots, discoveries, and brainy, oddball personalities. . . . [The stories] he uncoversand the questions he poses, about the nature of the relationship between criminality, curiosity, and technologyis compelling, fascinating stuff."
Portland Mercury

Lapsley takes up one of the more unusual chapters of the American underground. . . . Lapsley’s knack for detail and his impressive research will have tech phreaks and non-phreaks, well, freaking. . . . It’s impossible to set this book aside. . . . One way or another Exploding The Phone will probably be one of the most talked about books this year.”
PopMatters

Exploding the Phone manages to pull of the seemingly impossiblemake one nostalgic for the days of busy signals, operators and rotary dials.”
Winnipeg Free Press

Always entertaining and clear without being excessively technical . . . a well-documented work of historical value. . . . Highly recommended.”
Choice

Lapsley more than ably conveys the nuances of this fascinating slice of technological history . . . and his enlightening new interviews with most of the major phreaks as well as AT&T security officers form one of the most significant levels of his tremendous research.”
School Library Journal

Lapsley’s delightful account . . . sheds light on an underappreciated chapter in the history of technology.”
Reason

Phil Lapsley's Exploding the Phone does for the phone phreaks what Steven Levy's Hackers did for computer pioneers, capturing the anarchic move-fast-break-stuff pioneers who went to war against Ma Bell . . . Lapsley is a master storyteller . . . We're moving into an era where every policy fight starts and ends as a fight over how technology should work and who should control it . . . Exploding the Phone is an essential guide to where that fight started, how it's changed, and where it has stayed the same, over more than half a century.”
Boing Boing

About the Author

Phil Lapsley co-founded two high technology companies in the San Francisco Bay Area and was a consultant at McKinsey & Company where he advised Fortune 100 companies on strategy. He holds a Master's degree in electrical engineering and computer sciences from U. C. Berkeley and an MBA from the MIT Sloan School of Management. Lapsley has been interviewed by NPR and the BBC and quoted in The New York Times and Boston Globe on telephone and computer security issues, and is the author of one textbook, sixteen patents, an Internet standard, and many technical articles.

Product details

Publisher ‏ : ‎ Grove Press
Publication date ‏ : ‎ February 11, 2014
Language ‏ : ‎ English
Print length ‏ : ‎ 448 pages
ISBN-10 ‏ : ‎ 0802122280
ISBN-13 ‏ : ‎ 978-0802122285
Item Weight ‏ : ‎ 1.09 pounds
Dimensions ‏ : ‎ 5.5 x 1.25 x 8 inches
Best Sellers Rank: #997,199 in Books (See Top 100 in Books)
- #97 in History of Technology
- #114 in Computer Hacking
- #186 in History of Engineering & Technology
Customer Reviews:
(512)

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Customer reviews

512 global ratings

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Customers say

Customers find this book fascinating and well-researched, with extensive primary reporting that adds depth to the history of phone phreaking. The writing quality is excellent, and customers appreciate how the technical details are explained in a way that's accessible to non-technical readers. The story is engaging, with one customer noting it comes together in an entertaining tale.

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96 customers mention content, 94 positive, 2 negative

Customers find the book fascinating and entertaining, noting that the author did thorough research.

...the justice system, and in how the technology developed, this is a great read. We owe a lot to the phone phreaks...Read more

Great book if you have an interest in the subject matter....Read more

Excellent history and a fun read. I learned a lot about the phone system and the people who explored it for fun and profit.Read more

Excellent Read. As was said gets a little slow in spots. But a generally great story, well told.Read more

61 customers mention informative, 60 positive, 1 negative

Customers find the book informative and extensively researched, providing fascinating insights into the history of the phone system and Phreaking, with rich primary reporting that adds depth to the narrative.

This book achieves the rare feat of being well researched, maintaining an ideal "depth-to-breadth" ratio in its treatment of technical details, and...Read more

...is one example. Very well researched, with a supplemental web site with even more information, if you have an interest in the early days of the...Read more

I really loved this book. Thoroughly researched, perhaps in excessive detail, it tells the story of what he calls "a new breed of criminals:...Read more

Excellent history and a fun read. I learned a lot about the phone system and the people who explored it for fun and profit.Read more

35 customers mention story, 32 positive, 3 negative

Customers find the book's narrative engaging, particularly praising its detailed account of phone phreaking history and the intriguing epilogue.

Great story about how simple curiosity and native genius led to a counter-culture revolution against the giant 1984 style business monopoly The Bell...Read more

...author was able to weave together the technical details and the interesting stories of why these people were fascinated by the technology....Read more

A fascinating story, an open window to the hacking world from its early days, the creative and curious kids that start it all, in the context of...Read more

The book tells an amazing story regarding the early days of the problems concerning the concepts of phone phreaking, and the dreaded blue box as...Read more

25 customers mention writing quality, 25 positive, 0 negative

Customers praise the writing of the book, describing it as well-written and a marvelous history, with one customer noting its technical detail.

This is well written and it goes in depth....Read more

Very well written and entertaining. Interesting to read about how Apple started. Great history of the the phone industry and the early phone systems.Read more

Excellent work - well researched and written. A great read. very entertaining for anyone who is a bit of a techo.Read more

...It is a very well reseached and well written book. A must have for anybody interested in phreaking or the old computer undergroundRead more

18 customers mention readability, 18 positive, 0 negative

Customers find the book wonderfully readable, with one customer noting its clarity and depth, while another mentions it brings out their inner geek.

...Exploding The Phone is an insightful read full of unique characters and moments. Highly recommendedRead more

...The book "Master Switch" by Tim Wu is another educational read about Monopolistic Capitalism gone horrible amuck in the American economy.Read more

...But a generally great story, well told.Read more

...telling of the various stories of the original phone phreaks, is easy reading and very enjoyable....Read more

17 customers mention detailed, 17 positive, 0 negative

Customers appreciate the book's technical details, which are well-explained in a way that's accessible to non-technical readers.

I really loved this book. Thoroughly researched, perhaps in excessive detail, it tells the story of what he calls "a new breed of criminals:...Read more

As an avid reader 2600, the is the best description of how the phone network came into existence and the phone phreakers who explored it....Read more

I loved reading this book. Thoroughly researched and detailed....Read more

...This book is a really well-researched, non-fluffy, non-sensationalized, factual (as well as I can tell) and riveting account of what I and those...Read more

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K. A.
Five stars and honestly, I’d give it six if Amazon let me
Reviewed in the United States on August 17, 2025
Format: AudiobookVerified Purchase

I rarely feel compelled to leave a book review, but Exploding the Phone is one of those rare books that deserves every star—and then some. Here’s why:

- Compelling and fascinating storytelling meets rigorous history
Lapsley reads like a historian and storyteller rolled into one. He brings to life the “phone phreaks”—a ragtag mix of techno-whizzes, hippies, and misfits who hacked Ma Bell’s network in the ’50s, ’60s, and ’70s.

- Technological clarity without oversimplification
As an electrical engineer and former McKinsey consultant, Lapsley digs deep into the evolution of phone technology—from Bell’s early inventions to AT&T’s massive infrastructure—without losing narrative momentum.

- Rich primary reporting that adds depth
This is more than a surface-level story. Lapsley interviewed ex-phreaks, FBI agents, telco insiders, and used FOIA documents to weave a vividly researched tale. His 70-page chapter notes (tied to a dynamic companion website) are a treasure trove for anyone who craves historical context, or who, like me, is obsessed with telephonic history

This is a rare kind of non-fiction that actually feels thrilling. If I could, I’d rate it six stars. It’s historically essential, technically illuminating, and just damn fun.

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David M. Stanwick
Fantastic!
Reviewed in the United States on February 24, 2013
Format: KindleVerified Purchase
I'm a technical person, and back in the day some would refer to me as a phone phreak, although I wasn't interested in the long distance network. For me the local exchange was the most fascinating part of the system. In fact, as a teenager I built my own PBX which I was rather proud of. I had acquired a lot of equipment with the standard "Bell System Property -- Not For Sale" marking on it, but I never stole anything. I also got my hands on some Bell System manuals. I even purchased a copy of "Notes On The Network" directly from Bell, which was about 400 pages of what we would say today is proprietary information. The point is: I loved phones and the phone system, but for others this was a very strange pastime.

After reading the Wall Street Journal review on this book, I said to myself, "this might be interesting." What an understatement! I can't get over how extremely well written this book is! It flows like a tightly edited novel, yet far more interesting to read than I can possibly express in a few words here.

This book conveys the fascination and excitement many of us had for messing around with the phone system, and lays out in beautifully clear detail the very rich history of phone phreaking. For the technically inclined, the book essentially explains how phone hackers reverse engineered the network and found gaping security holes in its design that Bell System engineers where reluctant to investigate, let alone acknowledge. Today we talk about security issues with Windows or Java or Mac OS. Back then, Bell was losing millions of dollars each year due to technical fraud (like blue boxes) or more mundane credit card fraud or third party billing fraud. But even worse, phreaks discovered severe weaknesses in various parts of the system and could gain access to the US Military's supposedly secure AUTOVON network or could remotely monitor private phone conversations, among many other exploits.

The book is tremendously engaging. The details were not simply dumbed-down to make them accessible to non-engineer/technical types, they are presented in small increments as the book progresses and your network knowledge builds along the way. You could probably ignore some of this stuff and just focus on the story of the people and organizations, their actions and reactions, which is a majority of what the book is about. So, if you really don't care about in-band multi-frequency signalling, tandem stacking (which I didn't know anything about before), etc., you can be forgiven if you skip, but I think the author does a great job of making the technical aspects of the story accessible to everyone while preserving accuracy.

I never wanted to make a blue box because I thought for sure I would get busted. (Paranoia about Ma Bell and what she could do in terms of monitoring and prosecution was really strong in my day.) I used a black box for other purposes, though: it was possible in my area to monitor other conversations while on-hook due to crosstalk on the lines.

I was fortunate to be given a tour of our local central office one day, a crossbar 5 system. It sounds funny to say this now, but it was at that time, without question, the most exciting day of my life! There was an empty caged off area that that the Pacific Telephone representative was reluctant to explain. It was clear to us that for "security reasons" we weren't told what it was for. We assumed it had something to do with the military as there was an air force radar station not far away. But after reading this book I feel quite certain that at one time "Greenstar" was installed there!

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Timothy Hurley
Hacking Made Entertaining
Reviewed in the United States on July 25, 2013
Format: KindleVerified Purchase
Good read about phone phreaks and hackers of the telephone company, their history from the beginning of phone lines, and why they do it. Very well researched and very well written. The technology parts are not overdone and the technology that is beyond understanding is not a detraction the way this is written. The human story is what counts and that is fascinating. The epilogue is intriguing. I would have liked knowing if the author's knowledge came exclusively from research or whether he may have had hands-on knowledge of phone phreaking. I liked how he showed the transition from old school hacking to modern computer hacking. Fully half of the book is notes and details about research that were of no interest to me, but that did not detract from the entertainment. This book was recommended to me by the author's brother. It was a good recommendation. Timothy Hurley, author of Shortstack, funny short stories.

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Hayzon
Interessante, außergewöhnliche Geschichtensammlung
Reviewed in Germany on April 29, 2013
Format: HardcoverVerified Purchase

Einige Fragmente habe ich hier und da schon mal als Anekdote erzählt bekommen. Aber mit Philip Lapsley hat das endlich mal ein richtiger Autor gründlich recherchiert, gewichtet und in Zusammenhang gebracht: Die Phreaker ware die Urform der Hacker.

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Ignacio Lis
Crónicas de los viejos tiempos
Reviewed in Spain on August 17, 2013
Format: KindleVerified Purchase
Interesante relato de aquellos phreakers pioneros que en los años sesenta o setenta descubrieron todo lo que se podía hacer con la red telefónica con trucos tan de baja tecnología como silbarle al micrófono de tu teléfono un tono de 2600Hz. La prehistoria de lo que con el tiempo se terminó convirtiendo en el hacking tal y como lo conocemos hoy.

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Ed
A great read for both geeks and normal people!
Reviewed in the United Kingdom on March 18, 2016
Format: PaperbackVerified Purchase
If you've any interest in the telephone network then this book is a must-read. Easily accessible and understandable by all, this book charts the history of phone phreaking with some amusing stories, interesting observations and lessons for systems security. The phone network might be hugely different now, but the interest in the technology and the "wiring under the board" will never wane. This is a very well researched book, and I recommend it to all.

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Amazin Customer
Nerd Alert
Reviewed in Canada on June 10, 2024
Format: PaperbackVerified Purchase
I'm not much of a pleasure reader; but when this book was recommended by a coworker: I jumped on it. I'm a technical reader, but this is fantastically written.

Chapter 6 and loving it.

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Net Raider
Molto interessante
Reviewed in Italy on July 7, 2014
Format: HardcoverVerified Purchase
Scorrevole e veloce, anche nei dettagli tecnici. E' il primo libro sull'argomento che ne sviscera tutti gli aspetti e le sfaccettature. Ne consiglio la lettura agli appassionati del genere!

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Top reviews from the United States

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5.0 out of 5 stars Five stars and honestly, I’d give it six if Amazon let me

5.0 out of 5 stars Fantastic!

4.0 out of 5 stars Hacking Made Entertaining

Top reviews from other countries

4.0 out of 5 stars Interessante, außergewöhnliche Geschichtensammlung

5.0 out of 5 stars Crónicas de los viejos tiempos

5.0 out of 5 stars A great read for both geeks and normal people!

5.0 out of 5 stars Nerd Alert

5.0 out of 5 stars Molto interessante

Five stars and honestly, I’d give it six if Amazon let me

Fantastic!

Hacking Made Entertaining

Interessante, außergewöhnliche Geschichtensammlung

Crónicas de los viejos tiempos

A great read for both geeks and normal people!

Nerd Alert

Molto interessante