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 |
|---|---|---|---|---|---|---|
| 2025-03-26 | 530-995 | 0XXX1XXX5XXX8XXX9XXX · 5 holders which blocks → | METROPCS, INC. | 5562 | QUINCY | CA |
| 2012-06-18 | 530-360 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | ANDERSON | CA |
| 2009-02-13 | 530-712 | 0–9 XXXall 10 · 7 holders which blocks → | METROPCS, INC. | 5562 | OROVILLE | CA |
| 2007-03-08 | 530-282 | 0–9 XXXall 10 · 7 holders which blocks → | METROPCS, INC. | 5562 | OROVILLE | CA |
| 2002-07-17 | 530-870 | 3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2001-11-29 | 530-315 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2001-11-29 | 530-354 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | CHICO | CA |
| 2001-05-18 | 530-448 | 0XXX2XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | NTAH THCY | CA |
| — | 530-209 | none assigned yet which blocks → | METROPCS, INC. | 5562 | REDDING | CA |
| — | 530-210 | 2XXX which blocks → | METROPCS, INC. | 5562 | AUBN MAIN | CA |
| — | 530-362 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | NEVADACITY | CA |
| — | 530-392 | 2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → | METROPCS, INC. | 5562 | AUBN MAIN | CA |
| — | 530-510 | 1XXX2XXX3XXX4XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | REDDING | CA |
| — | 530-558 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → | METROPCS, INC. | 5562 | SHINGLESPG | CA |
| — | 530-624 | none assigned yet which blocks → | METROPCS, INC. | 5562 | CHICO | CA |
| — | 530-681 | 4XXX which blocks → | METROPCS, INC. | 5562 | WOODLAND | CA |
| — | 530-693 | 3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | OROVILLE | CA |
| — | 530-748 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → | METROPCS, INC. | 5562 | PLVL WEST | CA |
| — | 530-848 | 2XXX which blocks → | METROPCS, INC. | 5562 | WOODLAND | CA |
| — | 530-965 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | CHICO | 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.