[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference noted::hackers_v1

Title:-={ H A C K E R S }=-
Notice:Write locked - see NOTED::HACKERS
Moderator:DIEHRD::MORRIS
Created:Thu Feb 20 1986
Last Modified:Mon Aug 03 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:680
Total number of notes:5456

534.0. "Is this considered "phone phreaking"?" by RSTS32::DELBALSO (I (spade) my (dog face)) Thu Aug 20 1987 17:38

What's the story on what would be considered, I guess, "maintenance codes"
in the phone system? Are they fair game? Illegal to use? Or what?

The reason I ask is that my two teenage daughters recently told me about
a code which acts as some sort of "loopback" test in our exchange. If
you dial/key "981" (at least in my exchange) instead of your exchange and
the last four digits of your number from your own phone, then hang up and
pick up quickly, you'll get an interrupted tone (quicker than a "trunk
busy"), then hang up again and your phone will ring once. Pick up again
and you've got dial tone again. This comes in handy if I'm adding a line
or doing any rewiring in the house since I can verify that the line works
without pestering someone to call me back. I assume that telephone company
personnel use it for similar purposes (or maybe altogether different ones!).

The first question is: Is it OK (legal) to "hack around" with the phone
system like that?
And secondly: Are there any other interesting/useful codes that anyone
knows about which are legal?
Related questions are: 555 seems to be commonly used by the phone company
as their "private" exchange within an area code, but few numbers are pub-
lished (ever notice how in movies and on TV they always seem to use 555
numbers, presumeably to prevent wierdos from trying the fictitious number
given and actually reaching someone). Are there any standard ones (besides
1212) which are of general use?
   Are there other "short" numbers of any use, such as 911, which although
not advertised as being official everywhere, appear to at least get through
to someone? (I once was unable to direct dial long distance out of my area
code and additionally couldn't raise an operator. Dialing 1 or zero just
left me with dial tone. I could dial anything local that started with a
normal exchange starting digit (2-9) successfully. I tried 911, which was
not indicated as useful in my area and found that it did reach a phone
company operator who was able to report the trouble on my line.)
   Are there any dependable tricks for dialing less than seven digits within
an exchange or does it depend on the exchange?
   Is it legal to ask any of these questions?

-Jack
T.RTitleUserPersonal
Name
DateLines
534.1CURIE::DECARTERETJason DeCarteretThu Aug 20 1987 18:151
    where in the united states are you?
534.2RSTS32::DELBALSOI (spade) my (dog face)Thu Aug 20 1987 21:098
re: .1
   New England - Area 603, exchange 673
   Does that make a difference as far as the answers to my ?'s ?

   [ :^) ]

-Jack

534.3883-5555TOOK::MICHAUDJeff MichaudThu Aug 20 1987 22:0313
    It used to be something other than 981 a long time ago,
    then they changed it because too maney people used to
    use it.  My mother used to use it to tell us to be quiet
    when see was upstairs sleeping.
    
    My brother and I got the number from a telephone man who
    did some work on our phones.  It is a great trick to
    go to somebodys house, pretend to dial someone, then
    5 seconds later the phone rings, they answer and nobody
    is there, so they hang up, and it rings again....
    
    Another not so interesting one is 883-5555, which just
    gives a continuous tone forever.
534.4CURIE::DECARTERETJason DeCarteretFri Aug 21 1987 03:0315
      I too live in New Hampshire.  I think it only works in NH because
    when I try it at my friends houses who live in Dunstable, Tyngsboro,
    etc... It says the call cannot be compleated or something.
      The numbers are different in different parts of the state, different
    exchanges and such.  They are as follows.
    
      981-XXXX
      982-XXXX
      983-XXXX
      984-XXXX
    
    Where XXXX represents the last 4 digets of the phone number.
      There is also another number that has been around for a while.
     Can anybody tell me what it's for?  I tried to connect my terminal
    to it but no can do.  The number is 883-2023.
534.5CURIE::DECARTERETJason DeCarteretFri Aug 21 1987 03:065
      Oh yea,  There was a number that my brothers friend told me a
    long time back that when you called it, it would tell you the phone
    number of the house your at.  I keep remembering something about
    XXX-7777.
    -=*>Jason<*=-
534.6NRADM2::MAXMGRAl CoteFri Aug 21 1987 12:4210
I live in R.I. ... we used to be able to use the 981 trick ... I 
think it was, dial 981 .. wait for 2nd dial tone, dial 6 and hang up.

We also used to be able to dial 200- (or 220-) followed by any seven
numbers, and a recorded voice would tell you your phone number...

They don't seem to work anymore.

Al
534.7It's legal to ask...MOSAIC::WASSERJohn A. WasserMon Aug 24 1987 16:0917
> What's the story on what would be considered, I guess, "maintenance codes"
> in the phone system? Are they fair game? Illegal to use? Or what?
> The first question is: Is it OK (legal) to "hack around" with the phone
> system like that?

	I think that it is legal unless you disrupt telephone service
	(vandalism), annoy people (harassment) or avoid normal telephone 
	use charges (theft of services).  There may be some other charges
	that could be brought but I think these are the three most
	likely.

> Is it legal to ask any of these questions?

	Of course!  It's (still) a free country.  You havn't slandered,
	libeled or verbally assaulted anyone with your questions so
	there is no problem.  Answering questions is another matter.

534.8Once an abuser--I was warned.DELNI::CANTORDave C.Tue Aug 25 1987 08:0539
      A telephone installer once asked me not to use the ringback
      number because there are limited ports available and when an
      unauthorized person (someone who doesn't work for the TelCo)
      uses them, it can interfere with authorized phone workers getting
      their job done (installing or checking phones).
      
      There used to be lots of test numbers around, and I'd guess
      there still are.   Probably the local phone companies keep
      changing the codes as people discover them and use them
      excessively.
      
      Here are some interesting things I've known the numbers to
      over the years:
      
      ring back
      continuous 1 Khz tone at a known level
      dead silence (probably ring and tip crossed and grounded)
      what number am I calling from
      tone sweep
      1 Khz tone interrupted every ten seconds
      pair of numbers which connect to each other (two people dial
          the two numbers and talk to each other)
      recording for pay phone (something like "If you wish to make a 
          call, hang up, lift receiver, and deposit 10 cents when
          you get a new dial tone.")
              (I suspect this is a "default number" that you get
              connected to from a pay phone if you hold a dial tone
              without depositing money for too long.)
      line verification operator
      
      I do not encourage people looking for the phone company's
      internal-use numbers any more than I encourage people looking
      for system management's internal-use usernames.
      
      If you have a use for some of these numbers, ask your phone
      company.   (Ring back used to be given out to people with
      party lines, for example, so they could call their line-mates.)
      
      Dave C.
534.9confessions of a professional phone hackerDELNI::GOLDSTEINAll Hail Marx and Lennon (Bros. &amp; Sisters)Tue Aug 25 1987 13:3020
    These things have come up periodically on ARPAnet Telecom Digest.
    The numbers vary from place to place.  As Dave said, they have traffic
    limitations, so you can't go using them a lot or there could be
    trouble.  But some are generally useful.
   
    The 98x-defg trick works in New England Telephone territory, usually,
    but it was 550-(pulse 6) in NJ, and your-own-number+pulse in NY when I
    lived there.  It's not nationally uniform for ringbacks.  New England
    Tel uses "area code 200" for "speak back your own number" from the
    auto number identifier.  It is often turned off nowadays.
    
    One of my favorites way back when (in NJ) was the looparound test.
    You dialed xxx-9929 and got 1004 Hz tone (test milliwatt).  Someone
    else dialed the same prefix -9930 and got you.  When I was doing
    pirate radio, it was occasionally fun to sit on 9929 and give out
    our number as "9930" on one of the few exchanges where it worked.
    (Usually I gave out my real number tho.  Didn't wanna make it too
    hard for the FCC :-) )  These numbers, btw, vary from telco to telco;
    9935 is the plain milliwatt (not loop) in NE, but it was 9971 in NJ.
         fred
534.10(603)883-5555 gives interrupted tone, special code?VIDEO::OSMANtype video::user$7:[osman]eric.sixTue Aug 25 1987 14:5114
Indeed this phone number gives a tone.  However, the tone interrupts
about once a minute.

Questions worth investigating:

o	If you touchtone appropriate codes, will you get somewhere ?

o	Exactly how often does the tone interrupt ?

o	What is the purpose ?  Merely a tone to test line quality ?

o	Is there a charge for the call ?

/Eric
534.11boop tone for good touch toneDELNI::GOLDSTEINAll Hail Marx and Lennon (Bros. &amp; Sisters)Tue Aug 25 1987 18:1110
    re:.10
    Oh, did I forget to mention that the looparound milliwatt was 9
    seconds on 1 second off?  Sounds familiar...
    
    On the ringback numbers (which usually return a dial tone, then
    a single tone (440?) when you go into ringback-ready mode), you
    can dial 1234567890[*#] and it will give you two boops if your tones
    are right.  I think a single boop means it doesn't like your tone
    pad but you're close enough that it knows you're trying. 
         fred
534.12is (603)883-5555 half of a loop ?VIDEO::OSMANtype video::user$7:[osman]eric.sixWed Aug 26 1987 20:2316
Ah yes, loops.

I remember now, as reminded in previous reply.  Two numbers, each
of which dialed gives 1000 hz. tone.  But if TWO people dial them,
they can  talk to each other.

So, is (603)883-5555 one half of one of these ?  Can anyone find
the other half ?  5556 seems to ring indefinitely, 5554 gets AAA (don't
bother them again!).

Also, some loops were regular charge, some were free.  Free were
real nice, because any two people in the country could call them
and talk forever for free.  (CAUTION:  I'm sure this constitutes
theft of services, even though telco set up the numbers!)

/Eric
534.13JON::MORONEYWelcome to the MachineThu Aug 27 1987 01:527
The TELCO is now selling loops as teen gab lines.

re .-1:  Maybe loops are chained, like business numbers.  Try dialing the number
twice and see if you get yourself.  If it is busy, it still may be a chain, you
just didn't get the first one.  Chains don't have to be sequential numbers.

-Mike
534.14Moderator alert!UFP::MURPHYRick MurphyThu Aug 27 1987 02:114
    It's time to mention that this is not the FONE FREEKS notes file.
    If anyone would like to start one, fine. I don't think this discussion
    is approriate here.
    	-Rick
534.15Any suggestions where to take it?PFLOYD::ROTHBERGThat's not a bug, it's a feature.Fri Sep 25 1987 07:026
                Too bad.    I  found it somewhat interesting.  Is
                there an appropriate  notes  conference  for this
                somewhere?  I don't  think  it  warrents it's own
                conference.
                
534.16YesCOOKIE::CHAVEZDale C. - CXO3 Colo SpgsFri Sep 25 1987 15:467
RE:< Note 534.15 by PFLOYD::ROTHBERG "That's not a bug, it's a feature." >

>                     -< Any suggestions where to take it? >-

Yes, try OVDVAX::ELECTRO_HOBBY.  Phone discussions are rampant!

Dale
534.17It's been movedRSTS32::DELBALSOI (spade) my (dog face)Thu Oct 08 1987 12:287
At the suggestion of others, and the hospitality of the Moderator of
OVDVAX::ELECTRO_HOBBY, the base note and the first 13 replies have
been moved to that conference. Please feel free to follow the discussion
there.

-Jack