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 |
|---|---|---|---|---|---|---|
| 2019-03-18 | 209-618 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| 2018-08-17 | 209-488 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| 2018-06-25 | 209-301 | 0–9 XXXall 10 · 2 holders which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| 2015-03-04 | 209-425 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | STOCKTON | CA |
| 2009-03-02 | 209-214 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| 2008-06-24 | 209-855 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | TRACY | CA |
| 2007-07-13 | 209-416 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| 2007-07-05 | 209-409 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| 2006-06-19 | 209-450 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| 2002-09-10 | 209-688 | not yet reported which blocks → | METROPCS, INC. | 5562 | STOCKTON | CA |
| 2002-06-12 | 209-430 | not yet reported which blocks → | METROPCS, INC. | 5562 | STOCKTON | CA |
| 2002-03-21 | 209-489 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | MERCED | CA |
| 2001-10-18 | 209-423 | 0XXX2XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | STOCKTON | CA |
| 2001-10-18 | 209-570 | 6XXX7XXX8XXX9XXX which blocks → | METROPCS, INC. | 5562 | LODI | CA |
| 2001-08-21 | 209-271 | not yet reported which blocks → | METROPCS, INC. | 5562 | STOCKTON | CA |
| 2001-05-17 | 209-346 | 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | TRACY | CA |
| — | 209-251 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → | METROPCS, INC. | 5562 | GALT | CA |
| — | 209-456 | 3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | MANTECA | CA |
| — | 209-495 | 4XXX5XXX which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| — | 209-587 | 2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | LOS BANOS | CA |
| — | 209-595 | 8XXX9XXX which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| — | 209-652 | none assigned yet which blocks → | METROPCS, INC. | 5562 | MODESTO | CA |
| — | 209-810 | 1XXX9XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | LODI | CA |
| — | 209-898 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | STOCKTON | CA |
| — | 209-992 | 3XXX4XXX5XXX9XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | STOCKTON | CA |
| — | 209-993 | none assigned yet which blocks → | METROPCS, INC. | 5562 | STOCKTON | CA |
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.