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 |
|---|---|---|---|---|---|---|
| 2013-03-05 | 760-528 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | HOLTVILLE | CA |
| 2012-11-07 | 760-867 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | VTVL ADLN | CA |
| 2011-12-28 | 760-998 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | VTVL HSPR | CA |
| 2010-06-11 | 760-659 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | VISTA | CA |
| 2010-06-11 | 760-678 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | BARSTOW | CA |
| — | 760-282 | 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | BARSTOW | CA |
| — | 760-332 | 8XXX9XXX · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | EL CENTRO | CA |
| — | 760-514 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | CALIFORNCY | CA |
| — | 760-576 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | OCSD OCSD | CA |
| — | 760-824 | 2XXX3XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | LUCERNEVLY | CA |
| — | 760-826 | 9XXX which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | OCSD OCSD | CA |
| — | 760-913 | 0–9 XXXall 10 · 7 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | VALLEY CTR | CA |
| — | 760-999 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | FALLBROOK | 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.