NPA 613 & NPA 819 Relief Phase One (Dial Plan Change)
Primary documents
| Letter | Published | Subject |
|---|---|---|
| PL-355 | 2006-05-16 | NPA 613 & NPA 819 Relief Phase One (Dial Plan Change) |
| PL-340 | 2004-08-20 | NPA 613 & NPA 819 Relief Phase One (Dial Plan Change) |
All documents are official NANPA planning letters (Tier A sources). This page consolidates every letter we have on record for this event; it is updated automatically when new letters are detected, with sensitive changes held for editorial review first.