Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
Aloha
on July 15, 2024
|
parent
|
context
|
favorite
| on:
Building the Bell System
https://www.telecomarchive.com/six-digit.html
500-467 thru 500-478 will tell you more than you ever wanted to know.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
500-467 thru 500-478 will tell you more than you ever wanted to know.