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 |
|---|---|---|---|---|---|---|
| 2023-04-25 | 607-736 | 0XXX7XXX · 2 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | SHERBURNE | NY |
| 2023-04-25 | 607-781 | 7XXX which blocks → | ONVOY SPECTRUM, LLC | 624H | WALTON | NY |
| 2021-11-08 | 607-412 | 2XXX6XXX9XXX · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | LOCKWOOD | NY |
| 2021-06-07 | 607-617 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | NICHOLS | NY |
| 2021-06-07 | 607-620 | 0XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | OTEGO | NY |
| 2021-05-12 | 607-457 | 0XXX2XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | GRANDGORGE | NY |
| 2021-05-12 | 607-487 | 0XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | HARTWICK | NY |
| 2021-05-12 | 607-575 | 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | MAINE | NY |
| 2021-05-12 | 607-747 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | LINDLEY | NY |
| 2021-04-12 | 607-404 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | CANASERAGA | NY |
| 2021-04-12 | 607-447 | 4XXX5XXX6XXX9XXX · 2 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | MCLEAN | NY |
| 2021-04-12 | 607-706 | 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | CHERRY VLY | NY |
| 2021-04-12 | 607-787 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | EDMESTON | NY |
| 2021-04-01 | 607-466 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | ARKPORT | NY |
| 2021-04-01 | 607-507 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | AVOCA | NY |
| 2021-03-31 | 607-407 | 2XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | LANSING | NY |
| 2021-03-31 | 607-606 | 1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | NEWFIELD | NY |
| 2018-06-18 | 607-608 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | BINGHAMTON | NY |
| — | 607-340 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | ENDICOTT | NY |
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.