NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2017-07-20 | 819-709 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | La Tuque | — |
| 2015-04-17 | 819-250 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Drummondville | — |
| 2014-04-30 | 819-284 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | St-Sebastien (Frontenac Co.) | — |
| 2010-02-12 | 819-466 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Yamachiche | — |
| 2010-02-12 | 819-497 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Maskinonge | — |
| 2010-02-12 | 819-498 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Louiseville | — |
| 2006-09-07 | 819-256 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Aston-Jonction | — |
| 2006-09-07 | 819-526 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | St-Wenceslas | — |
| 2006-09-07 | 819-545 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Ste-Marie-de-Blandford | — |
| 2006-09-07 | 819-546 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | St-Sylvere | — |
| 2006-09-07 | 819-567 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Manseau | — |
| 2006-09-07 | 819-589 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Gentilly | — |
| 2006-09-07 | 819-591 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | St-Gregoire | — |
| 2006-09-07 | 819-632 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Deschaillons | — |
| 2006-09-07 | 819-745 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | St-Pierre-Les-Becquets | — |
| 2006-09-07 | 819-792 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Fortierville | — |
| 2006-09-07 | 819-899 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Ste-Sophie-de-Levrard | — |
| 2006-09-07 | 819-937 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | St-Leonard-d'Aston | — |
| 2006-09-07 | 819-963 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | St-Celestin | — |
| 2006-08-24 | 819-530 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Ste-Monique-de-Nicolet | — |
| 2006-08-24 | 819-786 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Ste-Gertrude | — |
| 2006-08-24 | 819-798 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Ste-Eulalie | — |
| 2006-08-24 | 819-863 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Ste-Angele | — |
| 2006-08-24 | 819-936 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Becancour | — |
| 2006-04-05 | 819-299 | not yet reported which blocks → | 9164-3122 Quebec inc | 843D | Trois-Rivieres | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.