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.
Most active assignees, all time — NPA 760
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| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2007-03-26 | 760-610 | 0–9 XXXall 10 · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PALMDESERT | CA |
| 2007-03-05 | 760-523 | 0–9 XXXall 10 · 7 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | VTVL ADLN | CA |
| 2006-12-14 | 760-205 | 0–9 XXXall 10 · 5 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | DESERT CTR | CA |
| 2003-03-28 | 760-969 | 0–9 XXXall 10 · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PALM SPG | CA |
| 2001-07-17 | 760-404 | 0–9 XXXall 10 · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PALMDESERT | CA |
| — | 760-274 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ENCINITAS | CA |
| — | 760-290 | 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SAN MARCOS | CA |
| — | 760-334 | 0–9 XXXall 10 · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ENCINITAS | CA |
| — | 760-405 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OCSD OCSD | CA |
| — | 760-407 | 2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | VISTA | CA |
| — | 760-410 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SAN MARCOS | CA |
| — | 760-422 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PALM SPG | CA |
| — | 760-423 | 2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PALMDESERT | CA |
| — | 760-424 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PALM SPG | CA |
| — | 760-448 | 0XXX5XXX6XXX7XXX · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OCSD CRLS | CA |
| — | 760-466 | 4XXX5XXX6XXX7XXX · 2 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ESCONDIDO | CA |
| — | 760-477 | 0XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | VISTA | CA |
| — | 760-516 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ENCINITAS | CA |
| — | 760-517 | 1XXX6XXX7XXX8XXX · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OCSD CRLS | CA |
| — | 760-547 | 1XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OCSD OCSD | CA |
| — | 760-575 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OCSD PDTN | CA |
| — | 760-607 | 0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OCSD CRLS | CA |
| — | 760-679 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | EL CENTRO | CA |
| — | 760-708 | 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ESCONDIDO | CA |
| — | 760-759 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SAN MARCOS | CA |
| — | 760-871 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ESCONDIDO | 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.