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313 lines
9.8 KiB
Text
313 lines
9.8 KiB
Text
===== Phrack Magazine presents Phrack 16 =====
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===== File 2 of 12 =====
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--------------------------------------------------------------------
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BELLCORE Information by The Mad Phone-man
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--------------------------------------------------------------------
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So, you've broken into the big phone box on the wall, and are looking at a
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bunch of tags with numbers and letters on them. Which one is the modem line?
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Which one is the 1-800 WATS line? Which one is the Alarm line? Bell has a
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specific set of codes that enable you to identify what you're looking at.
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These are the same codes the installer gets from the wire center to enable him
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to set up the line, test it, and make sure it matches the customers order.
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Here are some extracts from the Bellcore book.
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First lets take a hypothetical line number I'm familiar with:
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64FDDV 123456
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-------------------------------------------------------------
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The serial number format:
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Prefix + service code + modifier + serial number +
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digits: 1,2 3,4 5,6 7,8,9,10,11,12 continued
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-------------------------------------------------------------------------
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Suffix + CO assigning circuit number + segment
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digits: 13,14,15 16,17,18,19 20,21,22
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-------------------------------------------------------------------------
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The important shit is in the 3rd thru 6th digit.
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SERVICE CODES Intra or Inter LATA Block 1-26
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-------------
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AA- Packet analog access line
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AB- Packet switch trunk
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AD- Attendant
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AF- Commercial audio fulltime
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AI- Automatic identified outward dialing
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AL- Alternate services
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AM- Packet, off-network access line
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AN- Announcement service
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AO- International/Overseas audio (full time)
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AP- Commercial audio (part time)
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AT- International/Overseas audio (part time)
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AU- Autoscript
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BA- Protective alarm (CD)
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BL- Bell & lights
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BS- Siren control
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CA- SSN Access
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CB- OCC Audio facilities
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CC- OCC Digital facility-medium speed
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CE- SSN Station line
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CF- OCC Special facility
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CG- OCC Telegraph facility
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CH- OCC Digital facility high-speed
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CI- Concentrator Identifier trunk
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CJ- OCC Control facility
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CK- OCC Overseas connecting facility wide-band
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CL- Centrex CO line
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CM- OCC Video facility
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CN- SSN Network trunk
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CO- OCC Overseas connecting facility
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CP- Concentrator identifier signaling link
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CR- OCC Backup facility
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CS- Channel service
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CT- SSN Tie trunk
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CV- OCC Voice grade facility
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CW- OCC Wire pair facility
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CZ- OCC Access facility
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DA- Digital data off-net extension
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DB- HSSDS 1.5 mb/s access line
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DF- HSSDS 1.5 mb/s hub to hub
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DG- HSSDS 1.5 mb/s hub to earth station
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DH- Digital service
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DI- Direct-in dial
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DJ- Digit trunk
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DK- Data link
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DL- Dictation line
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DO- Direct-out dial
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DP- Digital data-2 4 kb/s
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DQ- Digital data-4 8 kb/s
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DR- Digital data-9.6 kb/s
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DW- Digital data-56 kb/s
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DY- Digital service (under 1 mb/s)
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EA- Switched access
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EB- ENFIA II end office trunk
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EC- ENFIA II tandem trunk
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EE- Combined access
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EF- Entrance facility-voice grade
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EG- Type #2 Telegraph
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EL- Emergency reporting line
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EM- Emergency reporting center trunk
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EN- Exchange network access facility
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EP- Entrance facility-program grade
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EQ- Equipment only-(network only) assignment
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ES- Extension service-voice grade
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ET- Entrance facility-telegraph grade
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EU- Extension service-telegraph grade
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EV- Enhanced Emergency reporting trunk
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EW- Off network MTS/WATS equivalent service
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FD- Private line-data
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FG- Group-supergroup spectrum
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FR- Fire dispatch
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FT- Foreign exchange trunk
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FW- Wideband channel
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FV- Voice grade facility
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FX- Foreign exchange
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HP- Non-DDS Digital data 2.4 kb/s
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HQ- Non-DDS Digital data 4.8 kb/s
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HR- Non-DDS Digital data 9.6 kb/s
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HW- Non-DDS Digital data 56 kb/s
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IT- Intertandem tie trunk
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LA- Local area data channel
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LL- Long distance terminal line
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LS- Local service
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LT- Long distance terminal trunk
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MA- Cellular access trunk 2-way
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MT- Wired music
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NA- CSACC link (EPSCS)
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NC- CNCC link (EPSCS)
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ND- Network data line
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OI- Off premises intercommunication station line
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ON- Off network access line
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OP- Off premises extension
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OS- Off premises PBX station line
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PA- Protective alarm (AC)
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PC- Switched digital-access line
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PG- Paging
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PL- Private line-voice
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PM- Protective monitoring
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PR- Protective relaying-voice grade
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PS- MSC constructed spare facility
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PV- Protective relaying-telegraph grade
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PW- Protective relaying-signal grade
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PX- PBX station line
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PZ- MSC constructed circuit
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QU- Packet asynchronous access line
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QS- Packet synchronous access line
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RA- Remote attendant
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RT- Radio landline
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SA- Satellite trunk
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SG- Control/Remote metering signal grade
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SL- Secretarial line
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SM- Sampling
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SN- Special access termination
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SQ- Equipment only-customer premises
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SS- Dataphone select-a-station
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TA- Tandem tie-trunk
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TC- Control/Remote metering-telegraph grade
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TF- Telephoto/Facsimile
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TK- Local PBX trunk
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TL- Non-tandem tie trunk
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TR- Turret or automatic call distributor (ACD) trunk
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TT- Teletypewriter channel
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TU- Turret or automatic call distributor (ACD) line
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TX- Dedicated facility
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VF- Commercial television (full time)
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VH- Commercial television (part time)
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VM- Control/Remote metering-voice grade
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VO- International overseas television
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VR- Non-commercial television (7003,7004)
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WC- Special 800 surface trunk
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WD- Special WATS trunk (OUT)
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WI- 800 surface trunk
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WO- WATS line (OUT)
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WS- WATS trunk (OUT)
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WX- 800 service line
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WY- WATS trunk (2-way)
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WZ- WATS line (2-way)
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ZA- Alarm circuits
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ZC- Call and talk circuits
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ZE- Emergency patching circuits
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ZF- Order circuits, facility
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ZM- Measurement and recording circuits
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ZP- Test circuit, plant service center
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ZQ- Quality and management circuits
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ZS- Switching, control and transfer circuits
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ZT- Test circuits, central office
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ZV- Order circuits, service
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SERVICE CODES FOR LATA ACCESS
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---------------------------------------------------
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HC- High capacity 1.544 mb/ps
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HD- High capacity 3.152 mb/ps
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HE- High capacity 6.312 mb/ps
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HF- High capacity 6.312
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HG- High capacity 274.176 mb/s
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HS- High capacity subrate
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LB- Voice-non switched line
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LC- Voice-switched line
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LD- Voice-switched trunk
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LE- Voice and tone-radio landline
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LF- Data low-speed
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LG- Basic data
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LH- Voice and data-PSN access trunk
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LJ- Voice and data SSN access
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LK- Voice and data-SSN-intermachine trunk
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LN- Data extension, voice grade data facility
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LP- Telephoto/Facsimile
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LQ- Voice grade customized
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LR- Protection relay-voice grade
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LZ- Dedicated facility
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MQ- Metallic customized
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NQ- Telegraph customized
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NT- Protection alarm-metallic
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NU- Protection alarm
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NV- Protective relaying/Telegraph grade
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NW- Telegraph grade facility-75 baud
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NY- Telegraph grade facility- 150 baud
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PE- Program audio, 200-3500 hz
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PF- Program audio, 100-5000 hz
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PJ- Program audio, 50-8000 hz
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PK- Program audio, 50-15000 hz
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PQ- Program grade customized
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SB- Switched access-standard
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SD- Switched access-improved
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SE- Special access WATS-access-std
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SF- Special access WATS access line improved
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SJ- Limited switched access line
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TQ- Television grade customized
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TV- TV Channel one way 15khz audio
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TW- TV Channel one way 5khz audio
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WB- Wideband digital, 19.2 kb/s
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WE- Wideband digital, 50 kb/s
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WF- Wideband digital, 230.4 kb/s
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WH- Wideband digital, 56 kb/s
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WJ- Wideband analog, 60-108 khz
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WL- Wideband analog 312-552 khz
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WN- Wideband analog 10hz-20 khz
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WP- Wideband analog, 29-44 khz
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WR- Wideband analog 564-3064 khz
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XA- Dedicated digital, 2.4 kb/s
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XB- Dedicated digital, 4.8 kb/s
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XG- Dedicated digital, 9.6 kb/s
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XH- Dedicated digital 56. kb/s
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Now the last two positions of real importance, 5 & 6 translate thusly:
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Modifier Character Position 5
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------------------------------
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INTRASTATE INTERSTATE
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-------------------------------------
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A B Alternate data & non data
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-------------------------------------
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C Customer controlled service
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-------------------------------------
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D E Data
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-------------------------------------
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N L Non-data operation
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-------------------------------------
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P Only offered under intra restructured
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private line (RPL) tariff
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-------------------------------------
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S T Simultaneous data & non-data
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-------------------------------------
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F Interexchange carriers is less than 50%
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-------------------------------------
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G Interstate carrier is more than 50%
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usage
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==============================================================================
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MODIFIER CHARACTER POSITION 6
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--------------------------------------------------------------
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TYPE OF SERVICE Intra LATA
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--------------------------------------
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ALL EXCEPT US GOVT US GOVERNMENT
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--------------------------------------
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T M Circuit is BOC customer to BOC customer
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all facilities are TELCO provided
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--------------------------------------
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C P Circuit is BOC/BOC and part of
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facilities or equipment is telco
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provided
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--------------------------------------
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A J Circuit is BOC/BOC all electrically
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connected equip is customer provided
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--------------------------------------
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L F Circuit terminates at interexchange
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carrier customers location
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--------------------------------------
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Z Official company service
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--------------------------------------
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Interlata
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S S Circuit terminates at interexchange
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carriers point of term (POT)
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--------------------------------------
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V V Circuit terminates at an interface of a
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radio common carrier (RCC)
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--------------------------------------
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Z Official company service
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--------------------------------------
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Corridor
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Y X Corridor circuit
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--------------------------------------
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International
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K H Circuit has at least 2 terminations in
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different countries
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--------------------------------------
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Interexchange carrier
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Y X Transport circuit between interexchange
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carrier terminals.
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----------------------------------------
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So 64FDDV would be a private line data circuit terminating at a radiocommon
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carrier. Other examples can be decoded likewise.
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Enjoy this information as much as I've had finding it.
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-= The Mad Phone-man =-
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