NXX Code definition

NXX Code or "End Office Code" means the three digit switch entity indicator (i.e. the first three digits of a seven digit telephone number).
NXX Code or "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.
NXX 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.

Examples of NXX Code in a sentence

Stands may not be dismantled or exhibits packed until after 5.30pm.

The LEC will provide adequate notice to the PMC of changes to PMCs NXX Code, if such a change of NXX is required.

As used in this Agreement, “Virtual Foreign Exchange Traffic” or “V/FX Traffic” is defined as calls in which an Onvoy Customer is assigned a telephone number with an NXX Code (as set forth in the LERG) associated with an exchange that is different than the exchange (as set forth in the LERG) associated with the actual physical location of such Customer’s station.

If either Party uses its NXX Code to provide Foreign Exchange (FX) service to its customers outside of the geographic area assigned to such code, that Party shall be solely responsible to transport traffic between its Foreign Exchange service customers and such code’s geographic area.

II-51.63 NXX, NXX Code, Central Office Code or CO Code .....................


More Definitions of NXX Code

NXX Code. 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.
NXX Code. 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.
NXX Code. OR "CENTRAL OFFICE CODE," OR "CO CODE" is the three digit switch entity indicator which is defined by the fourth, fifth and sixth digits of a 10 digit telephone number within the North America Numbering Plan ("NANP").
NXX Code. 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 North American Numbering Plan.
NXX Code means the three‑digit switch entity indicator (i.e., the first three digits of a seven-digit telephone number).
NXX Code or "central office code" means the fourth, fifth, and sixth digits in a 10-digit telephone number. This term also means a group of 10,000 sequential telephone num- bers, which all share the same fourth, fifth, and sixth digits. The NXX code denotes the exchange area within an area code. One central office code contains ten thousands- blocks, as defined in this section.
NXX Code or “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.