Central Office Code definition

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.
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.
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.

Examples of Central Office Code in a sentence

  • Nothing in this Agreement shall be construed to limit or otherwise adversely impact in any manner either Party's right to employ or to request and be assigned any North American Numbering Plan (NANP) number resources from the numbering administrator including, but not limited to, central office (NXX) codes pursuant to the Central Office Code Assignment Guidelines, or to establish, by tariff or otherwise, Exchanges and Rating Points corresponding to such NXX codes.

  • The above information will be provided by CUSTOMER by submitting to BellSouth a fully completed “CO Code Assignments Months To Exhaust Certification Worksheet – TN Level” (“MTE Worksheet”), Appendix B to the Central Office Code (NXX) Assignments Guidelines, INC 95-0407-008 for each rate center where CUSTOMER will be requesting intermediate telephone numbers.

  • Nothing in this Agreement shall be construed to, in any manner, limit or otherwise adversely impact SPRINT's right to employ or to request and be assigned any NANP number resources including, but not limited to, Central Office (NXX) Codes pursuant to the Central Office Code Assignment Guidelines.

  • Central Office Code (NXX) Assignment Guidelines, prepared by the Industry Numbering Committee, January 27, 1999 version, Section 4.4.

  • Letter to Clay County Jail Captain and Medical Staff from FIAC, August 9, 2006.


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 means the three (3)-digit switch entity indicator that is defined by the fourth (4th) through sixth (6th) digits of a ten (10)-digit telephone number within the NANP. Each NXX Code contains ten thousand (10,000) station numbers.
Central Office Code is the three digit switch entity indicator that is defined by the "D", "E", and "F" digits of a 10 digit telephone number within the North American Numbering Plan (NANP).
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 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". . . . . . . . . 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 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. “Operator Servicesprovides (1) operator handling for call completion (e.g. collect calls); (2) operator or automated assistance for billing after the subscriber has dialed the called number (e.g. credit card calls); and (3) special services (e.g. BLV/BLVI, Emergency Agency Call).