Data change log
This log is generated from the same change-tracking database that gates what we publish. Every import is recorded; every field-level change is either auto-approved under a named rule or held for editor review. Nothing here is backfilled or invented — the log starts on 16 September 2026, when the pipeline first ran.
Corrections
No corrections have been published yet. When we correct an error, the entry will name the affected pages, the wrong value, the fix and the cause. See the corrections policy for how to report one.
Site releases
- 2026-09-17Site redesign (v2): editorial layout, utilization bars, assignee rank charts. US prefix assignments loaded — 204,961 NPA-NXX records with initial-assignee and rate-center fields.
- 2026-09-16First data load: 800 NPAs from the NANPA area code database, 738 planning letters (1997–present) consolidated into 245 numbering events. Field-level provenance and review queue in place.
Source imports
| Retrieved | Source file | File date | Parser |
|---|---|---|---|
| 2026-09-17 | NANPA CO Code Assignments (Utilized, All States, Public) | 09/17/2026 | cocode-v1 |
| 2026-09-17 | NANPA CO Code Assignments (Utilized, All States, Public) | 09/17/2026 | cocode-v1 |
| 2026-09-17 | NANPA CO Code Assignments (Utilized, All States, Public) | 09/17/2026 | cocode-v1 |
| 2026-09-17 | NANPA NPA (Area Code) Database | 09/17/2026 | v1 |
Record changes
No record-level changes yet — the two most recent imports were identical apart from file dates. When NANPA publishes a change (a new planning letter, a status flip, a revised date), it will appear here with its review status.