NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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 |
|---|---|---|---|---|---|---|
| 2007-03-13 | 541-803 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - OR | 750E | CULVER | OR |
| 2007-03-13 | 541-854 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - OR | 750E | BLUE RIVER | OR |
| 2006-10-24 | 541-697 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks → | ONVOY, LLC - OR | 750E | HUNTINGTON | OR |
| 2006-09-25 | 541-299 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY, LLC - OR | 750E | ROGUERIVER | OR |
| 2006-09-25 | 541-708 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - OR | 750E | ASHLAND | OR |
| 2006-09-25 | 541-833 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - OR | 750E | VENETA | OR |
| 2006-09-25 | 541-876 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - OR | 750E | LAPINE | OR |
| 2006-03-13 | 541-844 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - OR | 750E | EUGENE | OR |
| — | 541-229 | not yet reported which blocks → | ONVOY, LLC - OR | 750E | ROSEBURG | OR |
| — | 541-313 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - OR | 750E | OAKRIDGE | OR |
| — | 541-319 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - OR | 750E | REEDSPORT | OR |
| — | 541-329 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - OR | 750E | BANDON | OR |
| — | 541-492 | not yet reported which blocks → | ONVOY, LLC - OR | 750E | ROSEBURG | OR |
| — | 541-559 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - OR | 750E | MYRTLE PT | OR |
| — | 541-585 | not yet reported which blocks → | ONVOY, LLC - OR | 750E | BEND | OR |
| — | 541-623 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - OR | 750E | COTTAGEGRV | OR |
| — | 541-669 | 0XXX1XXX4XXX6XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - OR | 750E | LINCOLN CY | OR |
| — | 541-691 | not yet reported which blocks → | ONVOY, LLC - OR | 750E | CANYONVL | OR |
| — | 541-762 | not yet reported which blocks → | ONVOY, LLC - OR | 750E | EUGENE | OR |
| — | 541-824 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - OR | 750E | COQUILLE | OR |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.