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 |
|---|---|---|---|---|---|---|
| 2021-07-26 | 361-966 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | ROBSTOWN | TX |
| 2021-03-02 | 361-599 | 0XXX1XXX3XXX5XXX7XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | AGUA DULCE | TX |
| 2021-03-02 | 361-699 | 0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | MATHIS | TX |
| 2021-01-14 | 361-567 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | BRUNI | TX |
| 2021-01-14 | 361-732 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | ARANSSPASS | TX |
| 2021-01-14 | 361-789 | 3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | PT COMFORT | TX |
| 2021-01-14 | 361-842 | 5XXX which blocks → | FRACTEL, LLC | 965H | ARMSTRONG | TX |
| 2021-01-14 | 361-899 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 7 holders which blocks → | FRACTEL, LLC | 965H | SAN DIEGO | TX |
| 2020-07-10 | 361-377 | 0XXX1XXX2XXX3XXX7XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | SKIDMORE | TX |
| 2020-07-10 | 361-477 | 0XXX1XXX7XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | YORKTOWN | TX |
| 2020-06-23 | 361-677 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | C CHRISTI | TX |
| 2020-06-18 | 361-766 | 0–9 XXXall 10 · 5 holders which blocks → | FRACTEL, LLC | 965H | ALICE | TX |
| 2019-11-20 | 361-300 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | C CHRISTI | TX |
| 2019-11-20 | 361-465 | 0–9 XXXall 10 · 4 holders which blocks → | FRACTEL, LLC | 965H | VICTORIA | TX |
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.