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 |
|---|---|---|---|---|---|---|
| 2024-07-16 | 626-783 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | ALHAMBRA | CA |
| 2024-01-22 | 626-661 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | PSDN PSDN | CA |
| — | 626-217 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LA PUENTE | CA |
| — | 626-224 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | AZUSA | CA |
| — | 626-320 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | ALHAMBRA | CA |
| — | 626-321 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | ARCADIA | CA |
| — | 626-322 | 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LA PUENTE | CA |
| — | 626-325 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 7 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | SIERRAMADR | CA |
| — | 626-404 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | COVINA | CA |
| — | 626-407 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | ALHAMBRA | CA |
| — | 626-434 | 0XXX5XXX6XXX9XXX which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | EL MONTE | CA |
| — | 626-463 | 3XXX7XXX8XXX · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | PSDN PSDN | CA |
| — | 626-515 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | SNGBLCNN | CA |
| — | 626-646 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | COVINA | CA |
| — | 626-733 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | AZUSA | CA |
| — | 626-755 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | PSDN PSDN | CA |
| — | 626-756 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | COVINA | CA |
| — | 626-873 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | MONROVIA | 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.