Meaning Central Office Code
What does Central Office Code mean? Here you find 3 meanings of the word Central Office Code. You can also add a definition of Central Office Code yourself
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Central Office CodeThe sub-NPA code in a TN, i.e., digits D-E-F of a 10-digit NANP Area address. Central office codes are in the form “NXX,” where N is a number from 2 to 9 and X is a number from 0 to 9. Central office codes may also be referred to as “NXX codes.” (47 C.F.R. § 52.7(c))
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Central Office CodeThe three digit code following the NPA code in a TN, i.e., digits D-E-F of a 10-digit NANP Area address.
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Central Office CodeThe three digit switch entity indicator which is defined by the D, E, and F digits of a 10-digit telephone number. Each NXX
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