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INC Report to the NANC
January 16, 2001
Norman EpsteinINC Moderator
Report Overview
Upcoming INC Meetings
Elimination of NANP Expansion Options 2A, 3A, 4A, and the Steering Code Proposal
D-Digit Release
LNPA & CO/NXX Workshops
NPA Workshop
Upcoming INC Meetings
March 5-9: INC 55
April 23-26: INC 56
June 11-15 : INC 57
Elimination of NANP Expansion Options 2A, 3A, 4A, and the Steering Code
Proposal
Eliminated Options
• OPTION 2A - 4 DIGIT NPA WITH NEW A DIGIT
– (N)XXX + XXX + XXXX• OPTION 3A - NATIONAL DESTINATION CODE (NDC)
– NDC (1 Digit) + NPA + XXX+ XXXX• OPTION 4A - 4 DIGIT NPA WITH NEW “B” DIGIT
– N(X)XX + XXX + XXXX• Steering Code Proposal
– SC (2 Digit) + NPA + XXX+ XXXX
• OPTION 2A - 4 DIGIT NPA WITH NEW A DIGIT
(N)XXX + XXX + XXXXRationale:• Transition Problem
• 0+ Dialing is not supported• Dialing Problem
• Reintroduction of 1+ prefix dialing• User Impact
• Confuses relationship with existing NPAs. New NPAs less similar to existing than in other options
Rationale for Elimination of Option 2A
0 + Dialing Problem
For a credit card call during the permissive period:
One can dial either:
0 + (2) NPA - NXX – XXXX (Expanded format) or
0 + NPA – NXX – XXXX (Existing format)
(Receives a prompt) + Credit card number
Rationale for Elimination of Option 2A
• OPTION 3A - NATIONAL DESTINATION CODE
(NDC) NDC (1 Digit) + NPA + XXX+ XXXXRationale: • Transition Problem
• 0+ Dialing is not supported• Dialing Problem
• Does require a prefix in transition and also on an ongoing basis for inter NDC dialing
• Eliminates uniform dialing throughout the NANP
• User Impact• No simple rule for transforming an old number to a new
number; requires users to learn new geographical segmentation
Rationale for Elimination of Option 3A
Rationale for Elimination of Option 3A
0 + Dialing Problem
For a credit card call during the permissive period:
One can dial either:
0 + NDC + NPA - NXX – XXXX (Expanded format) or
0 + NPA – NXX – XXXX (Existing format)
(Receives a prompt) + Credit card number
• OPTION 4A - 4 DIGIT NPA WITH NEW “B” DIGIT
N(X)XX + XXX + XXXXRationale:
• User Impact• Requires users to insert a digit in the middle of the area code
• Regulatory Issue• Fails to address Canadian request for identification of unique
geographic resources• NANP Exhaust Impact
• Does not allow release of 80 N9X NPAs for immediate assignment
Rationale for Elimination of Option 4A
• Steering Code Proposal
SC (2 Digit) + NPA + XXX+ XXXXRationale:
• Transition Problem• 0+ Dialing is not supported
• Dialing Problems• Does require a prefix in transition and also on
an ongoing basis for inter SC dialing• Eliminates uniform dialing throughout the
NANP• User Impact
• No simple rule for transforming an old number to a new number
• Requires users to learn new geographic segmentation post implementation
Rationale for Elimination of Steering Code Proposal
0 + Dialing Problem
For a credit card call during the permissive period:
One can dial either:
0 + SC + NPA - NXX – XXXX (Expanded format) or
0 + NPA – NXX – XXXX (Existing format)
(Receives a prompt) + Credit card number
Rationale for Elimination of Steering Code Proposal
OPTION 1A 4 DIGIT NPA WITH NEW D DIGIT
NXX(X) + XXX + XXXX
OPTION 1B 4 DIGIT NPA WITH NEW D DIGIT AND 4 DIGIT C.O. CODES
NXX(X) + (X)XXX + XXXX
Both options require that the D-digit not be released prior to NANP Expansion
Options Still Under Consideration
•INC is addressing the directive in the FCC’s Second Report and Order for the eventual elimination of current usage of 0/1 D-digits (Paragraphs 105 and 106)
D-Digit Release
•INC has begun its initial examination of FCC 00-429.
The following guidelines are currently under review:
•Central Office Code Assignment Guidelines
•Thousands-Block Number Pooling Administration Guidelines
•North American Numbering Utilization and Forecast Reporting Guidelines
LNPA Workshop & CO/NXX Workshop
•The NPA Workshop reissued their NPA Code Relief Planning and Notification Guidelines on November 13, 2000. This reissuance aligns the guidelines with current industry practices.
NPA Workshop
