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-
- *******BIOC AGENT 003'S COURSE IN******
- * *
- * ========================== *
- * =BASIC TELECOMMUNICATIONS= *
- * ========================== *
- * PART III *
- * *
- ***************************************
-
-
- PREFACE:
-
- IN PART III, WE WILL DISCUSS THE
- DIALING PROCEDURES FOR DOMESTIC AS WELL
- AS INTERNATIONAL DIALING. WE WILL ALSO
- TAKE A LOOK AT THE TELEPHONE NUMBERING
- PLAN.
-
- ===============================
- =NORTH AMERICAN NUMBERING PLAN=
- ===============================
-
- IN NORTH AMERICA, THE TELEPHONE
- NUMBERING PLAN IS AS FOLLOWS:
-
- A) A 3 DIGIT NUMBERING PLAN AREA
- (NPA) CODE, [IE, AREA CODE]
-
- B) A 7 DIGIT TELEPHONE #
- CONSISTING OF A 3 DIGIT CENTRAL
- OFFICE (CO) CODE PLUS A 4 DIGIT
- STATION #.
-
- THESE 10 DIGITS ARE CALLED THE NETWORK
- ADDRESS OR DESTINATION CODE. IT IS IN
- THE FORMAT OF:
-
- AREA CODE TELEPHONE #
- --------- -----------
-
- N*X NXX-XXXX
-
- WHERE: N = A DIGIT FROM 2-9
- * = THE DIGIT 0 OR 1
- X = A DIGIT 0-9
-
- AREA CODES:
- -----------
-
- CHECK YOUR TELEPHONE BOOK OR THE
- SEPARATE LISTING OF AREA CODES FOUND ON
- MANY BBS'S. HERE ARE THE SPECIAL AREA
- CODES (SAC'S):
-
- 510 - TWX (USA)
- 610 - TWX (CANADA)
- 700 - NEW SERVICE
- 710 - TWX (USA)
- 800 - WATS
- 810 - TWX (USA)
- 900 - DIAL-IT SERVICES
- 910 - TWX (USA)
-
- THE OTHER AREA CODES NEVER CROSS STATE
- LINES, THEREFORE EACH STATE MUST HAVE
- ATLEAST ONE EXCLUSIVE NPA CODE. WHEN
- A COMMUNITY IS SPLIT BY A STATE LINE,
- THE CO #'S ARE OFTEN INTERCHANGABLE
- (IE, YOU CAN DIAL THE SAME # FROM 2
- DIFFERENT AREA CODES)
-
-
- TWX:
-
- TWX (TELEX II) CONSISTS OF 5 TELETYPE-
- WRITER AREA CODES. THEY ARE OWNED BY
- WESTERN UNION. THESE SAC'S MAY ONLY BE
- REACHED VIA OTHER TWX MACHINES. THESE
- RUN AT 110 BAUD. BESIDES THE TWX #'S,
- THESE MACHINES ARE ROUTED TO NORMAL
- TELEPHONE #'S. TWX MACHINES ALWAYS
- RESPOND WITH AN ANSWERBACK. FOR
- EXAMPLE, WU'S FYI TWX # IS (910) 988-
- 5956, THE CORRESPONDING REAL NUMBER TO
- THIS IS (201) 279-5956. THE ANSWERBACK
- FOR THIS SERVICE IS "WU FYI MAWA."
-
- IF YOU DON'T WANT TO BUY A TWX MACHINE,
- YOU CAN STILL SEND TWX MESSAGES USING
- EASYLINK [800/325-4112 - SEE TUC'S AND
- MY ARTICLE ENTITLED "HACKING WESTERN
- UNION'S EASYLINK]
-
- 700:
-
- AT THE TIME OF THIS WRITING, THE 700
- EXCHANGE DOES NOT YET EXIST. AT&T
- PLANS TO USE IT SOON THOUGH. THEY PLAN
- TO MAKE IT A TYPE OF FANCY CALL
- FORWARDING SERVICE. IT WILL BE
- TARGETED TOWARDS SALESMEN ON THE RUN.
-
- TO UNDERSTAND HOW IT WORKS, I'LL
- EXPLAIN IT WITH AN EXAMPLE. LET'S SAY
- JOE Q. SALESPIG WORKS FOR AT&T SECURITY
- AND HE IS ON THE RUN CHASING A PHREAK
- AROUND THE COUNTRY WHO ROYALLY SCREWED
- UP AN IMPORTANT COSMOS SYSTEM. LET'S
- SAY THAT JOE'S 700 # IS (700) 382-5968.
- EVERYTIME JOE GOES TO A NEW HOTEL, HE
- DIALS A SPECIAL 700 #, ENTERS A CODE,
- AND THE # WHERE HE IS STAYING. NOW, IF
- HIS BOSS RECEIVED SOME IMPORTANT INFO,
- ALL HE WOULD DO IS DIAL (700) 382-5968
- AND IT WOULD RING WHEREVER JOE LAST
- PROGRAMMED IT TO. NEAT, HUH?
-
- 800:
-
- THIS SAC IS ONE OF MY FAVORITES SINCE
- IT ALLOWS FOR TOLL-FREE CALLS.
-
- INWARD WATS (INWATS): INWARD WIDE AREA
- TELECOMMUNICATIONS SERVICE IS THE 800
- #'S THAT WE ARE ALL FAMILIAR WITH. 800
- #'S ARE SET UP IN SERVICE AREAS OR
- BANDS. THERE ARE 6 OF THESE. BAND 6
- IS THE LARGEST AND YOU CAN CALL A BAND
- 6 # FROM ANYWHERE IN THE US EXCEPT THE
- STATE WHERE THE CALL IS TERMINATED
- (THIS IS WHY MOST COMPANIES HAVE ONE
- 800 # FOR THE COUNTRY AND THEN ANOTHER
- FOR JUST ONE STATE). BAND 5 INCLUDES
- THE 48 CONTIGUOUS STATES. ALL THE WAY
- DOWN TO BAND 1 WHICH INCLUDES ONLY THE
- STATES CONTIGUOUS TO THAT ONE.
- THEREFORE, LESS PEOPLE CAN REACH A BAND
- 1 INWATS # THAT A BAND 6 #.
-
- INTRASTATE INWATS #'S (IE, YOU CAN CALL
- IT FROM ONLY 1 STATE) ALWAYS HAVE A 2
- AS THE LAST DIGIT IN THE EXCHANGE (IE,
- 800-NX2-XXXX). THE NXX ON 800 #'S
- REPRESENT THE AREA WHERE THE BUSINESS
- IS LOCATED. FOR EXAMPLE, A # BEGINNING
- WITH 800-431 WOULD TERMINATE AT A NY CO
-
- 800 #'S ALWAYS END UP IN A HUNT SERIES
- IN A CO. THIS MEANS THAT IT TRIES THE
- FIRST # ALLOCATED TO THE COMPANY FOR
- THEIR 800 LINES; IF THIS IS BUSY IT
- WILL THEN TRY THE NEXT #, ETC). YOU
- MUST HAVE A MINIMUM OF TWO LINES PER
- EACH 800 #. FOR EXAMPLE, TRAVELNET
- USES A HUNT SERIES. IF YOU DIAL (800)
- 521-8400, IT WILL FIRST TRY THE #
- ASSOCIATED WITH 8400; IF IT IS BUSY IT
- WILL GO TO THE NEXT AVAILABLE PORT,
- ETC. INWATS CUSTOMERS ARE BILLED BY
- THE # OF HOURS OF CALLS THAT ARE MADE
- TO THEIR #.
-
- OUTWATS (OUTWARD WATS): OUTWATS ARE
- FOR MAKING OUTGOING CALLS ONLY. LARGE
- COMPANIES USE OUTWATS SINCE THEY
- RECEIVE BULK-RATE DISCOUNTS. SINCE
- OUTWATS # CANNOT HAVE INCOMING CALLS,
- THEY ARE IN THE FORMAT OF:
-
- (800) *XX-XXXX
-
- WHERE * IS THE DIGIT 0 OR 1 WHICH
- CANNOT BE DIALED UNLESS YOU BOX THE
- CALL. THE *XX IDENTIFIES THE TYPE OF
- SERVICE AND THE AREAS THAT THE COMPANY
- CAN CALL.
-
- REMEMBER:
- INWATS + OUTWATS = WATS EXTENDER
- (SEE PART I)
-
- 900:
-
- THIS DIAL-IT SAC IS A NATIONWIDE
- DIAL-IT SERVICE. IT IS USED FOR TAKING
- TELEVISION POLLS AND OTHER STUFF. THE
- FIRST MINUTE CURRENTLY COSTS AN
- OUTRAGEOUS 50 CENTS AND EACH ADDITIONAL
- MINUTE COSTS 35 CENTS. BELL TAKES IN
- ALOT OF REVENUE IN THIS WAY.
-
- DIAL (900) 555-1212 TO FIND OUT WHAT IS
- CURRENTLY ON THE SERVICE.
-
-
- CO CODES:
- ---------
-
- THESE IDENTIFY THE SWITCHING OF
- 970 - PLANT TEST (TEMPORARY)
- 976 - DIAL-IT SERVICES
-
- ALSO, THE 3 DIGIT ANI & RINGBACK #'S
- ARE REGARDED AS PLANT TEST AND ARE THUS
- RESERVED. THESE NUMBERS VARY FROM AREA
- TO AREA.
-
- 950:
-
- [ALSO SEE PART I]
-
- HERE ARE THE SERVICES THAT ARE
- CURRENTLY ON THE 950 EXCHANGE:
-
- 1000 - SPC
- 1022 - MCI EXECUNET
- 1033 - US TELEPHONE
- 1044 - ALLNET
- 1066 - LEXITEL
- 1088 - SBS SKYLINE
-
- THESE SCC'S (SPECIALIZED COMMON
- CARRIERS) ARE FREE FROM FORTRESSES!
-
- PLANT TESTS:
-
- THESE INCLUDE ANI, RINGBACK, AND OTHER
- VARIOUS TESTS.
-
- 976:
-
- DIAL 976-1000 TO SEE WHAT IS CURRENTLY
- ON THE SERVICE. ALSO, MANY BBS'S HAVE
- A LISTING OF THESE #'S.
-
-
- N11 CODES:
- ----------
-
- BELL IS TRYING TO PHASE SOME OF THESE
- OUT, BUT THEY STILL EXIST IN MANY
- AREAS.
-
- 011 - INTERNATIONAL DIALING PREFIX
- 211 - COIN REFUND OPERATOR
- 411 - DIRECTORY ASSISTANCE
- 611 - REPAIR SERVICE
- 811 - BUSINESS OFFICE
- 911 - EMERGENCY
-
-
- =======================
- =INTERNATIONAL DIALING=
- =======================
-
- WITH INTERNATIONAL DIALING, THE WORLD
- HAS BEEN DIVIDED INTO 9 NUMBERING
- ZONES.
-
- TO MAKE AN INTERNATION CALL, YOU MUST
- DIAL:
- INT. PREFIX + COUNTRY CODE + NAT. #
-
- IN NORTH AMERICA, THE INTERNATIONAL
- DIALING PREFIX IS 011 FOR STATION-TO-
- STATION CALLS AND 01 FOR OPERATOR-
- SERVICED CALLS. IDDD STANDS FOR
- INTERNATIONAL DIRECT DISTANCE DIALING.
-
- THE COUNTRY CODE, WHICH VARIES FROM 1
- TO 3 DIGITS, ALWAYS HAS THE WORLD
- NUMBERING ZONE AS THE FIRST DIGIT. FOR
- EXAMPLE, THE COUNTRY CODE FOR THE
- UNITED KINGDOM IS 44, THUS IT IS IN
- WORLD NUMBERING ZONE 4.
-
- SOME BOARDS(Like OSUNY) MAY CONTAIN A CO
- MPLETE
- LISTING OF OTHER COUNTRY CODES, BUT
- HERE ARE A FEW:
-
- 1 - NORTH AMERICA (US, CANADA,ETC)
- 20 - EGYPT
- 258 - MOZAMBIQUE
- 34 - SPAIN
- 49 - GERMANY
- 52 - MEXICO (SOUTHERN PORTION)
- 61 - AUSTRALIA
- 7 - USSR
- 81 - JAPAN
- 98 - IRAN
-
- IF YOU CALL FROM AN AREA OTHER THAN
- NORTH AMERICA, THE FORMAT IS GENERALLY
- THE SAME. FOR EXAMPLE, LET'S SAY YOU
- WANTED TO CALL THE WHITE HOUSE FROM
- SWITZERLAND. FIRST YOU WOULD DIAL 00
- (THE SWISS INTERNATIONAL DIALING
- PREFIX), THEN 1 (THE US COUNTRY CODE),
- FOLLOWED BY 202-456-1414 (THE NATIONAL
- # FOR THE WHITE HOUSE).
-
- ALSO, COUNTRY CODE 87 IS RESERVED FOR
- MARITIME MOBILE SERVICE, IE CALLING
- SHIPS:
-
- 871 - MARISAT (ATLANTIC)
- 872 - MARISAT (PACIFIC)
- 873 - MARISAT (INDIAN )
-
- INTERNATIONAL SWITCHING:
-
- IN NORTH AMERICA, THERE ARE CURRENTLY 7
- NO. 4 ESS'S THAT PERFORM THE DUTY OF
- ISC (INTERNATION SWITCHING CENTERS).
- ALL INTERNATIONAL CALLS DIALED FROM
- NUMBERING ZONE 1 WILL BE ROUTED THROUGH
- ONE OF THESE "GATEWAY CITIES." THEY
- ARE:
-
- 182 - WHITE PLAINS, NY
- 183 - NEW YORK, NY
- 184 - PITTSBURGH, PA
- 185 - ORLANDO, FL
- 186 - OAKLAND, CA
- 187 - DENVER, CO
- 188 - NEW YORK, NY
-
- THE 18X SERIES ARE OPERATOR ROUTING
- CODES FOR OVERSEAS ACCESS (TO BE
- FURTHER DISCUSSED WITH BLUE BOXES).
- ALL INTERNATIONAL CALLS USE A SIGNALING
- SYSTEM CALLED CCITT. IT IS AN
- INTERNATIONAL STANDARD FOR SIGNALING.
-
-
-
- COMING SOON:
- ------------
-
- IN PART IV, WE WILL DISCUSS SWITCHING
- EQUIPMENT, VARIOUS OPERATORS, CO TYPES,
- ETC.
-
-
- PHREAKING LIVES IN '84,
-
- *****BIOC
- *=$=*AGENT
- *****003
-
- <<=-FARGO 4A-=>>
-
- 23-FEB-84
-
- REFERENCES/ACKNOWLEDGEMENTS: NOTES ON
- THE NETWORK (AT&T), TAP (ROOM 603, 147
- W 42 ST, NEW YORK, NY 10036),
- UNDERSTANDING TELEPHONE ELECTRONICS,
- AND MANY OTHERS/TUC, MULCHER ][,
- CHESHIRE CATALYST, AND MANY OTHERS WHO
- HAVE CONTRIBUTED IN ONE WAY OR THE
- OTHER TO THIS ARTICLE.
-
-
-