NPA 572 to Overlay NPA 405 (Oklahoma)
Primary documents
| Letter | Published | Subject |
|---|---|---|
| PL-535 | 2020-03-04 | NPA 572 to Overlay NPA 405 (Oklahoma) |
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.