Loop

Loops are a pair of phone numbers, usually consecutive, like 836-9998 and 836-9999. They are used by the phone company for testing. What good do loops do us? Well, they are cool in a few ways. Here is a simple use of loops. Each loop has two ends, a 'high' end, and a 'low' end. One end gives a (usually) constant, loud tone when it is called. The other end is silent. Loops don't usually ring either. When BOTH ends are called, the people that called each end can talk through the loop. Some loops are voice filtered and won't pass anything but a constant tone; these aren't much use to you. Here's what you can use working loops for: billing phone calls! First, call the end that gives the loud tone. Then if the operator or someone calls the other end, the tone will go quiet. Act like the phone just rang and you answered it … say "Hello", "Allo", "Chow", "Yo", or what the fuck ever. The operator thinks that she just called you, and that's it! Now the phone bill will go to the loop, and your local RBOC will get the bill! Use this technique in moderation, or the loop may go down. Loops are probably most useful when you want to talk to someone to whom you don't want to give your phone number.

Excerpted from: ToneLoc v0.99 User Manual by Minor Threat & Mucho Maas

What is a loop in my area?

Many (if not most) of these loops are no longer functional. If you are local to any of these loops, please try them out an e-mail me the results of your research.

NPA High Low Notes

310	455-0002	455-????
310	546-0002	546-????
312	262-9902	262-9903	Very odd sound
313	224-9996	224-9997
313	225-9996	225-9997
313	237-9996	237-9997
313	256-9996	256-9997
313	272-9996	272-9997
313	273-9996	273-9997
313	292-9996	292-9997
313	369-9996	369-9997
313	388-9996	388-9997
313	465-9996	465-9997
313	471-9996	471-9997
313	556-9996	556-9997
313	561-9996	561-9997
313	561-9996	561-9996
313	569-9996	569-9996
313	577-9996	577-9996
313	621-9996	621-9997
313	722-9996	722-9997