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 |
|---|---|---|---|---|---|---|
| 2023-06-26 | 830-389 | 0XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BARKSDALE | TX |
| 2023-03-10 | 830-470 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BOERNE | TX |
| 2023-02-16 | 830-516 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | EAGLE PASS | TX |
| 2022-11-07 | 830-453 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | DEL RIO | TX |
| 2022-11-07 | 830-475 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SEGUIN | TX |
| 2022-10-31 | 830-384 | 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HONDO | TX |
| 2016-09-09 | 830-360 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | NEWBRANFLS | TX |
| 2014-07-11 | 830-308 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | DEL RIO | TX |
| 2008-02-07 | 830-339 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | GONZALES | TX |
| 2006-08-25 | 830-637 | 0–9 XXXall 10 · 8 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | MARBLE FLS | TX |
| 2005-08-16 | 830-496 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | KERRVILLE | TX |
| 2003-12-30 | 830-388 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BOERNE | TX |
| 2003-12-30 | 830-399 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | PLEASANTON | TX |
| 2001-05-11 | 830-491 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SEGUIN | TX |
| 2001-05-01 | 830-613 | 1XXX2XXX3XXX4XXX6XXX7XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | MARBLE FLS | TX |
| — | 830-260 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | FRIOCANYON | TX |
| — | 830-285 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | KERRVILLE | TX |
| — | 830-330 | 3XXX4XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | JOHNSON CY | TX |
| — | 830-343 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | KERRVILLE | TX |
| — | 830-481 | 1XXX2XXX3XXX5XXX6XXX7XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | NEWBRANFLS | TX |
| — | 830-581 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LAVERNIA | TX |
| — | 830-832 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | NEWBRANFLS | TX |
| — | 830-867 | 0–9 XXXall 10 · 9 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BRACKETTVL | 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.