NumberResearchRecent prefix assignments
20 prefixes assigned in March 2026 · from the daily NANPA CO code file, 09/18/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, March 2026
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-03-27 | 346-923 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOUSTON | TX |
| 2026-03-24 | 810-403 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FLINT | MI |
| 2026-03-23 | 463-338 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENWOOD | IN |
| 2026-03-19 | 231-469 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MUSKEGON | MI |
| 2026-03-19 | 464-287 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 479-566 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
| 2026-03-09 | 730-295 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CARBONDALE | IL |
| 2026-03-09 | 906-342 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | IRON MT | MI |
| 2026-03-04 | 734-613 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WYANDOTTE | MI |
| 2026-03-03 | 224-682 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NORTHBROOK | IL |
| 2026-03-03 | 224-683 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NORTHBROOK | IL |
| 2026-03-03 | 224-684 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NORTHBROOK | IL |
| 2026-03-03 | 224-685 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLIGTNHTS | IL |
| 2026-03-03 | 534-250 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RHINELANDR | WI |
| 2026-03-03 | 534-251 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RHINELANDR | WI |
| 2026-03-03 | 681-599 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PRKRSBGZN1 | WV |
| 2026-03-03 | 681-601 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PRKRSBGZN1 | WV |
| 2026-03-02 | 464-286 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 682-487 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2026-03-02 | 817-324 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.