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 |
|---|---|---|---|---|---|---|
| 2020-12-14 | 864-690 | 0–9 XXXall 10 · 7 holders which blocks → | METROPCS, INC. | 5562 | EASLEY | SC |
| 2019-01-16 | 864-535 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | GREENVILLE | SC |
| 2011-06-23 | 864-364 | 0–9 XXXall 10 · 6 holders which blocks → | METROPCS, INC. | 5562 | SENECA | SC |
| 2003-09-22 | 864-872 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | LAURENS | SC |
| 2002-07-08 | 864-986 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | METROPCS, INC. | 5562 | CLEMSON | SC |
| — | 864-484 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | GREENVILLE | SC |
| — | 864-505 | none assigned yet which blocks → | METROPCS, INC. | 5562 | GREENVILLE | SC |
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.