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 |
|---|---|---|---|---|---|---|
| 2001-02-12 | 254-433 | 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | EASTLAND | TX |
| 2001-02-12 | 254-479 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HILLSBORO | TX |
| 2001-02-08 | 254-216 | 2XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GATESVILLE | TX |
| — | 254-223 | 5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GATESVILLE | TX |
| — | 254-234 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BREMOND | TX |
| — | 254-289 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KILLEEN | TX |
| — | 254-291 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KILLEEN | TX |
| — | 254-352 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | STEPHENVL | TX |
| — | 254-368 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KILLEEN | TX |
| — | 254-396 | 7XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLEN ROSE | TX |
| — | 254-541 | 8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TEMPLE | TX |
| — | 254-625 | 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MEXIA | TX |
| — | 254-651 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WACO | TX |
| — | 254-681 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KILLEEN | TX |
| — | 254-702 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KILLEEN | TX |
| — | 254-715 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WACO | TX |
| — | 254-716 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WACO | TX |
| — | 254-717 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WACO | TX |
| — | 254-718 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TEMPLE | TX |
| — | 254-722 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WACO | TX |
| — | 254-723 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WACO | TX |
| — | 254-744 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WACO | TX |
| — | 254-760 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TEMPLE | TX |
| — | 254-855 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WACO | TX |
| — | 254-913 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TEMPLE | TX |
| — | 254-931 | 5XXX6XXX7XXX8XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TEMPLE | TX |
| — | 254-967 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | STEPHENVL | 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.