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 |
|---|---|---|---|---|---|---|
| 2018-03-05 | 757-956 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | NRFOLKZON3 | VA |
| 2015-02-23 | 757-998 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | NRFOLKZON3 | VA |
| 2014-12-11 | 757-975 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | NWPTNWSZN1 | VA |
| 2014-08-20 | 757-920 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | WILLIAMSBG | VA |
| 2011-02-17 | 757-921 | 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | NWPTNWSZN1 | VA |
| 2010-07-07 | 757-602 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | NWPTNWSZN1 | VA |
| 2006-08-23 | 757-768 | 0–9 XXXall 10 · 2 holders which blocks → | METROPCS, INC. | 5562 | NWPTNWSZN1 | VA |
| 2001-11-20 | 757-522 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | METROPCS, INC. | 5562 | SURRY | VA |
| 2001-09-13 | 757-660 | none assigned yet which blocks → | METROPCS, INC. | 5562 | NWPTNWSZN1 | VA |
| 2001-03-07 | 757-556 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | COURTLAND | VA |
| — | 757-206 | 1XXX2XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | WILLIAMSBG | VA |
| — | 757-207 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | METROPCS, INC. | 5562 | WILLIAMSBG | VA |
| — | 757-208 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | WILLIAMSBG | VA |
| — | 757-329 | none assigned yet which blocks → | METROPCS, INC. | 5562 | NWPTNWSZN1 | VA |
| — | 757-371 | 0XXX2XXX7XXX8XXX · 4 holders which blocks → | METROPCS, INC. | 5562 | SMITHFIELD | VA |
| — | 757-561 | 0XXX2XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | WILLIAMSBG | VA |
| — | 757-572 | none assigned yet which blocks → | METROPCS, INC. | 5562 | NRFOLKZON1 | VA |
| — | 757-573 | 0XXX2XXX9XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | NRFOLKZON1 | VA |
| — | 757-574 | 0XXX1XXX2XXX9XXX · 3 holders which blocks → | METROPCS, INC. | 5562 | NRFOLKZON1 | VA |
| — | 757-580 | 0XXX1XXX2XXX9XXX · 2 holders which blocks → | METROPCS, INC. | 5562 | NRFOLKZON1 | VA |
| — | 757-582 | none assigned yet which blocks → | METROPCS, INC. | 5562 | NRFOLKZON3 | VA |
| — | 757-592 | 9XXX which blocks → | METROPCS, INC. | 5562 | NWPTNWSZN1 | VA |
| — | 757-676 | 0XXX1XXX2XXX which blocks → | METROPCS, INC. | 5562 | NRFOLKZON1 | VA |
| — | 757-907 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | NWPTNWSZN1 | VA |
| — | 757-977 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | NRFOLKZON3 | VA |
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.