Central Office Code definition
Central Office Code is the three-digit switch entity indicator that is defined by the fourth through sixth digits of a 10-digit telephone number within the NANP. Each NXX Code contains 10,000 station numbers.
Central Office Code means the three digit switch entity indicator that is defined by the “D”, “E”, and “F” digits of a 10-digit telephone number within the NANP. Each NXX Code contains 10,000 station numbers.
Central Office Code or "CO Code" is the three digit switch entity indicator which is defined by the "D", "E", and "F" digits of a 10-digit telephone number within the NANP. Each NXX Code contains 10,000 station numbers. Historically, entire NXX code blocks have been assigned to specific individual local exchange end office switches.
Examples of Central Office Code in a sentence
Such transfer will be accomplished with appropriate coordination between the Parties and subject to appropriate industry lead- times (as identified in the LERG and the Central Office Code Administration guidelines) for movement of NXXs from one End Office Switch to another.
NXX, NXX Code, Central Office Code or CO Code: The three-digit switch entity indicator that is defined by the "D", "E", and "F" digits of a ten-digit telephone number within the NANP.
The Parties shall not charge each other to recover costs associated with reassigning a Central Office Code or a Thousands-Block.
Each Party is responsible for administering the NXX codes it is assigned to ensure compliance with the industry-approved Central Office Code (NXX) Assignment Guidelines (April 1997) and the FCC’s Second Report & Order in CC Docket 95-116, released August 18, 1997 (Local Number Portability).
Reassignment of a Central Office Code or Thousands-Block will require development of a transition process to minimize impact on the Network and on the End User(s)’ service and will be subject to appropriate industry lead times for movements of NXXs from one switch to another.
More Definitions of Central Office Code
Central Office Code or "CO Code" is defined by the "D," "E," and "F" digits of a 10-digit telephone number within the North American Numbering Plan. Each NXX Code contains 10,000 station numbers. Historically, entire NXX code blocks have been assigned to specific individual local exchange end office switches, because, in general, this approach did not conflict with geographic numbering except as the CO approached number exhaustion. Where there are multiple COs in the same geographic area, this assignment method must change. With the advent of end-user telephone number portability, the usual one-on-one association on an NXX with an end office switching entity will be severed.
Central Office Code. OR "CO CODE"...................II-6 1.60 "911 SERVICE"...........................................................II-6 1.61 "OWNER AND OPERATOR"....................................................II-6 1.62 "POI"...................................................................II-6 1.63 "POLE ATTACHMENT".......................................................II-6 1.64 "PROVIDER"..............................................................II-6 1.65 "PUBLIC SAFETY ANSWERING POINT" OR "PSAP"...............................II-6 1.66 "RATE CENTER"...........................................................II-7 1.67 "RIGHT-OF-WAY" OR "ROW".................................................II-7 1.68 "ROUTING POINT".........................................................II-7 1.69 "SERVICE CONTROL POINT" OR "SCP"........................................II-7 1.70 "SERVICE SWITCHING POINT" OR "SSP"......................................II-7 1.71 "SIGNALING POINT" OR "SP"...............................................II-7 1.72 "SIGNALING SYSTEM 7" OR "SS7"...........................................II-7 1.73 "SIGNAL TRANSFER POINT" OR "STP"........................................II-7 1.74 "SUBSIDIARY"............................................................II-7 1.75 "SYNCHRONOUS OPTICAL NETWORK" OR "SONET"................................II-7 1.76 "SWITCHED ACCESS SERVICE"...............................................II-8 1.77 "TELECOMMUNICATIONS SERVICES"...........................................II-8 1.78 "THIRD PARTY CONTAMINATION".............................................II-8 1.79 "TRUNK SIDE"............................................................II-8 1.80 "UNDEFINED TERMS".......................................................II-8 1.81 "VERTICAL FEATURES" (INCLUDING "CLASS FEATURES")........................II-8 1.82 "WIRE CENTER"...........................................................II-8 ARTICLE III GENERAL PROVISIONS.........................................................................III-1
Central Office Code means a three-digit number,ranging from 100 to 999, which represents a group of up to 10,000 telephone numbers allocated by the Authority to an authorised provider pursuant to section 44 of the Act;
Central Office Code. OR "CO CODE". . . . . . . . . II-7 1.60 "911 SERVICE". . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-7 1.61 "OWNER AND OPERATOR" . . . . . . . . . . . . . . . . . . . . . . . . . II-7 1.62 "POI". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-7 1.63 "POLE ATTACHMENT". . . . . . . . . . . . . . . . . . . . . . . . . . . II-7 1.64 "PROVIDER" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.65 "PUBLIC SAFETY ANSWERING POINT" OR "PSAP". . . . . . . . . . . . . . . II-8 1.66 "RATE CENTER". . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.67 "RIGHT-OF-WAY" OR "ROW". . . . . . . . . . . . . . . . . . . . . . . . II-8 1.68 "ROUTING POINT". . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.69 "SERVICE CONTROL POINT" OR "SCP" . . . . . . . . . . . . . . . . . . . II-8 1.70 "SERVICE SWITCHING POINT" OR "SSP" . . . . . . . . . . . . . . . . . . II-8 1.71 "SIGNALING POINT" OR "SP". . . . . . . . . . . . . . . . . . . . . . . II-9 1.72 "SIGNALING SYSTEM 7" OR "SS7". . . . . . . . . . . . . . . . . . . . . II-9 1.73 "SIGNAL TRANSFER POINT" OR "STP" . . . . . . . . . . . . . . . . . . . II-9 1.74 "SUBSIDIARY" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-9 1.75 "SYNCHRONOUS OPTICAL NETWORK" OR "SONET" . . . . . . . . . . . . . . . II-9 1.76 "SWITCHED ACCESS SERVICE". . . . . . . . . . . . . . . . . . . . . . . II-9 1.77 "TELECOMMUNICATIONS SERVICES". . . . . . . . . . . . . . . . . . . . . II-9 1.78 "THIRD PARTY CONTAMINATION". . . . . . . . . . . . . . . . . . . . . . II-9 1.79 "TRUNK SIDE" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-9 1.80 "UNDEFINED TERMS". . . . . . . . . . . . . . . . . . . . . . . . . . . II-9 1.81 "VERTICAL FEATURES" (INCLUDING "CLASS FEATURES") . . . . . . . . . . . II-9 1.82 "WIRE CENTER". . . . . . . . . . . . . . . . . . . . . . . . . . . . .II-10
Central Office Code means the 3-digit switch entity indicator (i.e., the first three digits of a seven-digit telephone number).
Central Office Code means the second three (3)-digits switch entity indicator that is defined by the fourth (4th) through sixth (6th) digits(NXX) of a ten (10)-digit telephone number within the NANPin the form NXX-NXX-XXX, where N represents any one of the numbers 2 through 9 and X represents any one of the numbers 0 through 9. Each NXX Code contains 10,000 station numbers. AT&T’s definition defines the term, while Sprint’s defines the NPA that has already been defined above. GT&C Part B AT&T GTC Part B, and as used throughout RESOLVED Issue 55 Agreement GT&C Part B AT&T Issue 56 GTC Part B, and as used throughout Agreement RESOLVED T’
Central Office Code means the first three digits of a seven-digit telephone number. Central office codes are assigned to telecommunications providers by the central office code administrator in accordance with the industry’s central office code assignment guidelines.