NXX means the three-digit code, which appears as the first three digits of a seven-digit telephone number within a valid NPA or area code.
NXX or “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.
NXX. “NXX Code,” “COC,” “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 NANP.
Examples of NXX in a sentence
When a calling party places a telephone call, if the called party is in a portable NXX, a query will be launched to the LNP database to determine whether or not the called number has been ported.
II-13 1.108 Virtual NXX Traffic (VNXX Traffic) ........................................................
The first six (6) digits of the LRN will be one of the assigned NPA NXX of the switching element.
Nothing in this Agreement shall be construed to, in any manner, limit or otherwise adversely impact CD'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.
As used in this Agreement, Virtual NXX Traffic or VNXX Traffic is defined as calls in which a Party’s Customer is assigned a telephone number with an NXX Code (as set forth in the LERG) assigned to a Rate Center that is different from the Rate Center associated with the Customer’s actual physical premise location.
More Definitions of NXX
NXX means the fourth, fifth and sixth digits of a ten-digit telephone number.
NXX. 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. “NXX Code”, “Central Office Code”, or “CO Code” is the 3-digit switch indicator that 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 telephone numbers.
NXX 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 contains 10,000 station numbers.
NXX or “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.
NXX. NXX Code", "Central Office Code" or "CO Code" . . . . . . . II-7 1.54 "911 Service" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-7 1.55 “Owner” and “Operator” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-7 1.56 "POI" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-7 1.57 "Provider" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-7 1.58 "Public Safety Answering Point" or "PSAP" . . . . . . . . . . . . . . . . . . . II-7 1.59 "Rate Center" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-7 1.60 "Routing Point" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.61 "Service Control Point" or "SCP" . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.62 "Service Switching Point" or "SSP" . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.63 "Signaling Point" or "SP" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.64 "Signaling System 7" or "SS7" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.65 "Signal Transfer Point" or "STP" . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.66 "Subsidiary" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8 1.67 "Synchronous Optical Network" or "SONET" . . . . . . . . . . . . . . . . . II-9 1.68 "Switched Access Service" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-9 1.69 "Telecommunications Services" . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-9 1.70 “Third Party Contamination” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-9 1.71 “Two-Way Wireless Mobile Telecommunications Service Provider” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-9 1.72 “Undefined Terms” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-9 1.73 "Vertical Features" (including "CLASS Features") . . . . . . . . . . . . . II-9 1.74 "Wire Center" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-9 ARTICLE III GENERAL PROVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III-1 1. Scope of General Provisions I-1
NXX refers to the first three digits of a telephone number, which identify the specific telephone company central office that serves that number.