Publisher : ATIS

Vertical Service Code Assignment Guidelines

Document status: Active

Vertical Service Code Assignment Guidelines

Document status: Active

Vertical Service Code Assignment Guidelines

Document status: Active

Uniform Dialing Plan

Document status: Active

9YY NXX Code Assignment Guidelines

Document status: Active

9YY NXX Code Assignment Guidelines

Document status: Active

9YY-NXX Code Administration Guidelines

Document status: Active

9YY NXX Code Assignment Guidelines

Document status: Active

9YY NXX Code Assignment Guidelines

Document status: Active

9YY NXX Code Assignment Guidelines

Document status: Active