Circuit ID
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A circuit ID is a company-specific identifier assigned to a data or voice network between two locations. This circuit, for example a tie line, is then leased to a customer by that ID. A subscriber having an issue with a circuit contacts the telecommunications provider to provide this circuit ID for action on the designated circuit.
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[edit] Telecom Circuit ID formats
The LEC circuit ID's are based on Telcordia Technologies' Common Language Coding. At one time, the abbreviations were meaningful (for example, HC for hi - capacity) but the complexity of the business no longer allows for it.
XX/YYYY/000000/111/CC/SEG prefix/service code - service code modifier/serial #/suffix/company identifier/segment name
- Prefix, set by administration areas for each company. They may or may not be based on LATA
- Service code, the type of service this circuit is providing
- Service code modifier, modifies the service code, often used for different billing options.
- Serial number, 6 digit numeric identifier
- Suffix, if a service has multiple legs or drops this will further identify the location.
- Company identifier, identifies the controlling LEC.
- Segment, the drop NAME for a multi - point circuit.
Example:
- 73/HCGS/123456/000/NE is a T1 Circuit by New England Telephone
- 44/AQDU/987654/000/G4 is a HDSL Circuit by G4 Telecom
[edit] Service Codes
[edit] Qwest
Serial number format: AA/BBBB/CCCCCCC/DDD/EE/F[1]
- A Prefix: 1–2 alphanumeric characters. Optional.
- B Service Code/Modifier: 2–4 Characters. Required.
- C Serial Number: 1–4 digits. Required
- D Suffix: 3 character suffix to the serial number. May be required. (Rarely used)
- E CO (Company) Code: 2–4 alphabetic characters (NW, MS, PN) Required.
- F Segment: 1–3 alphanumeric characters. Optional for point to point interfaces.
Telephone Number Format: AA/BBBB/CCC/DDD/EEEE/FF/G[1]
- A Prefix: Alphanumeric characters. Required if it exists.
- B Service Code & Modifier: 2–4 alphabetic characters. Required for non-DSL numbered circuits.
- C NPA: 3 digits. This is a required field.
- D NXX: 3 digits. This is a required field.
- E Line: 4 digits. This is a required field
- ? Extension: 1–5 alphanumeric characters. This is an optional field.
- F For states: AZ, CO, ID, MT, NM, UT, WY, alphas not accepted; convert D1 to 0001, D2 to 0002, etc.
- G Segment: 1–3 alphanumeric characters. This is an optional field. rarely used
[edit] References
- ^ a b "Guide to Circuit ID Formats". Qwest. http://www.qwest.com/wholesale/systems/WebHelp/reference/circuit_id_formats_guide.htm. Retrieved 2011-03-08.
