AT&T DS1/DMi/ISDN-PRI manual Enhanced Mode Procedure 354, Word, Npa, Nxx

ADMINISTRATION OPTIONS AND REQUIREMENTS — GENERIC 2 7-73

NOTE: This word need not be translated unless the application requires that SID or the connected number be transmitted to the network.

		ENHANCED MODE - PROCEDURE: 354, WORD: 3
		NPA-NXX ASSIGNMENT
1.	NPA-NXX Designator:
2.		NPA:
3.		NXX:
4.		Thousand's Digit:
Connected to CC0 ON-LINE
enter		command:

Figure 7-33.Procedure 354 Word 3: NPA-NXX Digits Assignment (Generic 2)

Field 1	This field should be translated for both private and public network connections.
	The NPA-NXX designator is a 2-digit field and within the range of 1 through
	99.
Field 2	This 3-digit field should contain the Numbering Plan Area (NPA), which is also
	referred to as the area code. Assignment is therefore dependent on the particular
	location and application.
Field 3	This 3-digit field should specify the NXX, which is also referred to as the local
	exchange code. Permitted values must be those numbers within the range 200
	through 999 and must be the office code of the local exchange.
Field 4	This 1-digit field specifies the thousands digit. When not used, it should contain
	(–).When used, digits 0 through 9 may be assigned. Use this field only with
	three-digit dial plans. Do not use it with four- or five-digit dial plans.