NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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 |
|---|---|---|---|---|---|---|
| 2023-06-09 | 662-919 | 9XXX which blocks → | ONVOY SPECTRUM, LLC | 624H | SHUQUALAK | MS |
| 2023-06-08 | 662-980 | 0XXX1XXX2XXX · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | EUPORA | MS |
| 2023-06-06 | 662-970 | 0XXX which blocks → | ONVOY SPECTRUM, LLC | 624H | ETHEL | MS |
| 2023-06-05 | 662-922 | 2XXX which blocks → | ONVOY SPECTRUM, LLC | 624H | INVERNESS | MS |
| 2023-06-05 | 662-930 | 0XXX1XXX · 2 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | COLDWATER | MS |
| 2023-06-01 | 662-899 | 9XXX which blocks → | ONVOY SPECTRUM, LLC | 624H | ASHLAND | MS |
| 2023-06-01 | 662-933 | 3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | CLARKSDALE | MS |
| 2023-05-09 | 662-906 | 0XXX2XXX9XXX · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | BYHALIA | MS |
| 2023-05-09 | 662-960 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | HERNANDO | MS |
| 2023-05-05 | 662-896 | 0XXX which blocks → | ONVOY SPECTRUM, LLC | 624H | CARROLLTON | MS |
| 2023-05-05 | 662-898 | 0XXX which blocks → | ONVOY SPECTRUM, LLC | 624H | TUTWILER | MS |
| 2005-05-18 | 662-730 | 0XXX9XXX · 2 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | RIPLEY | MS |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.