NPA 475 to Overlay NPA 203; NPA 860 10-digit dialing (Connecticut)
Primary documents
| Letter | Published | Subject |
|---|---|---|
| PL-388 | 2009-04-14 | NPA 475 to Overlay NPA 203; NPA 860 10-digit dialing (Connecticut) |
| PL-217 | 2000-02-24 | NPA 475 To Overlay NPA 203; NPA 959 To Overlay NPA 860 (Connecticut) |
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.