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 |
|---|---|---|---|---|---|---|
| 2017-08-15 | 859-267 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | RICHMOND | KY |
| 2017-01-19 | 859-310 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | LEXINGTON | KY |
| 2012-03-12 | 859-303 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | METROPCS, INC. | 5562 | LEXINGTON | KY |
| 2003-03-24 | 859-298 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | CYNTHIANA | KY |
| 2002-04-23 | 859-509 | none assigned yet which blocks → | METROPCS, INC. | 5562 | LEXINGTON | KY |
| 2002-01-04 | 859-329 | 0XXX3XXX5XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | DANVILLE | KY |
| 2001-09-14 | 859-265 | 5XXX8XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | HARRODSBG | KY |
| 2001-04-04 | 859-326 | none assigned yet which blocks → | METROPCS, INC. | 5562 | DANVILLE | KY |
| 2001-02-06 | 859-398 | 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | MTSTERLING | KY |
| — | 859-433 | 0XXX2XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | LEXINGTON | KY |
| — | 859-621 | none assigned yet which blocks → | METROPCS, INC. | 5562 | LEXINGTON | KY |
| — | 859-661 | 4XXX8XXX9XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | RICHMOND | KY |
| — | 859-983 | none assigned yet which blocks → | METROPCS, INC. | 5562 | LEXINGTON | KY |
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.