NumberResearchRecent prefix assignments
3 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 |
|---|---|---|---|---|---|---|
| — | 479-461 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FORT SMITH | AR |
| — | 479-462 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FORT SMITH | AR |
| — | 479-466 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| — | 479-530 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| — | 479-531 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| — | 479-597 | 1XXX2XXX3XXX4XXX5XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENWOOD | AR |
| — | 479-622 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DANVILLE | AR |
| — | 479-647 | 1XXX2XXX3XXX4XXX5XXX7XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLARKSVL | AR |
| — | 479-650 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FORT SMITH | AR |
| — | 479-692 | 0XXX1XXX3XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RUSSELLVL | AR |
| — | 479-719 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FORT SMITH | AR |
| — | 479-739 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FORT SMITH | AR |
| — | 479-790 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| — | 479-857 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RUSSELLVL | AR |
| — | 479-866 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BENTONVL | AR |
| — | 479-871 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FAYETTEVL | AR |
| — | 479-970 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RUSSELLVL | AR |
| — | 479-981 | 4XXX7XXX8XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | EUREKA SPG | AR |
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.