Numeric Pattern Normalization (NPN)

Document Type Expired Internet-Draft (individual)
Authors  , Dean Ballew  , Shashwath Raghavan  , David Lawrence 
Last updated 2020-01-23 (latest revision 2019-07-22)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Numeric Pattern Normalization (NPN) resource record provides pre- processing information to reduce the number of possible variants which can be generated by pattern-based RR's into a single signable record.

Authors (
Dean Ballew (
Shashwath Raghavan (
David Lawrence (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)