Other Stuff That Has Little To Do With PLA > Phreaking, Hacking, Social Engineering, Lock Picking

Carrier Access Code

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N01zii:
Was just scanning around and found a Carrier Access Code, what fun stuff can I do with it, and how do I use it?

Can't find much information about them online.

Deception:
Your post is a little confusing.  Carrier Access Codes were devised as a way to give telephone users the possibility of opting for a different carrier on a call-by-call basis.  They were popular throughout the 90's and prior to 98, the codes had a format of 10-XXX.  After 98, the format changed to 101-XXXX.

I think you're speaking of a Carrier tone.  If that's the case, you'll need an analog modem with a POTS or VOIP line to connect to it (along with some Terminal software).  It could be a number of things.  *nix systems are still prevalent, remote access systems and other miscellaneous systems and devices.   In Europe you call still find X.25 systems (I've yet to find any Telenet. Tymnet or Datapac lines still active in the US).

rbcp:
Good thing they future-proofed those carrier access codes immediately before they died forever.

Deception:
Yep, much like the 950 numbers that were used before CAC's appeared and like the local and 800-number extenders that the 950 numbers took place of.  They are all history now.

For the hell of it, I just dialed a couple random 950 numbers and got the same results.. Standard US ringtone about 3 times, then a China ringtone 2-3 times, then once it picks up, it sounds like a phone on speaker outside of a coffee shop or something in China (both 950-1000 and 950-1050 seem to ring to the same thing).

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