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INC REPORT TO THE NANCMarch 2002

“INC Recommended Plan for Expanding the Capacity of the

NANP”

David Bench - INC Moderator

INC NANPE DOCUMENTS

• Interim NANP Expansion Report (INC 99-0127-023, December 1999)

• Recommended Plan for Expanding The Capacity of the NANP (INC 02-0107-029, December 2001)

• NANP Expansion Reference Document

• Still in DRAFT status

• All documents can be found at: www.atis.org/clc/inc/incdocs.htm

KEY ASSUMPTIONS

• Uniform (10-digit) dialing to be implemented prior to expansion

• The existing “D” Digit not be released prior to expansion

• Existing prefixes (e.g., 0, 1, 011, 101-XXXX) to remain prior to and after expansion

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NANP EXPANSION RECOMMENDATION

• INC Recommended NANP Expansion Plan Format 

NXX(X) + (X)NXX + XXXXNXX(X) a four-digit NPA with (X) the additional digit(X)NXX a four-digit CO Code with (X) the additional digitXXXX a four-digit line number

Here, the valueN represents digits 2 through 9, andX represents digits 0 through 9

Note: The new F Digit (sixth digit of the expanded plan) takes on the values of 2 through 9 to allow a future expansion effort if and when needed.

 

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NANP EXPANSION RECOMMENDATION

• Transition Method 1 (both digits implemented simultaneously) NXX(X) + (X) NXX + XXXX (INC recommends this approach)

• Transition Method 2 (phased approach with NPA implemented first)

NXX (X) + NXX + XXXXNXX (X) + (X) NXX + XXXX

• Transition Method 3 (phased approach with CO Code implementation first)

NXX + (0)NXX + XXXX NXX(1) + (X) NXX + XXXX