NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 563
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-09-24 | 563-837-7XXX | 7000–7999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | FREDECKSBG | IA |
| 2025-08-28 | 563-228-1XXX | 1000–1999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | BELLEVUE | IA |
| 2024-09-27 | 563-677-3XXX | 3000–3999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | CHARLOTTE | IA |
| 2023-11-27 | 563-550-1XXX | 1000–1999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | CALMAR | IA |
| 2021-08-03 | 563-363-8XXX | 8000–8999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | MANCHESTER | IA |
| 2019-12-18 | 563-281-1XXX | 1000–1999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | MUSCATINE | IA |
| 2017-11-16 | 563-519-5XXX | 5000–5999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | CLINTON | IA |
| 2017-10-12 | 563-425-9XXX | 9000–9999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | FAYETTE | IA |
| 2017-08-16 | 563-331-9XXX | 9000–9999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | TIPTON | IA |
| 2016-10-13 | 563-794-9XXX | 9000–9999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | WAUKON | IA |
| 2016-05-09 | 563-578-9XXX | 9000–9999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | SUMNER | IA |
| 2015-07-08 | 563-202-9XXX | 9000–9999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | DECORAH | IA |
| 2014-06-16 | 563-293-9XXX | 9000–9999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | DAVENPORT | IA |
| 2013-12-27 | 563-412-0XXX | 0000–0999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | WEST UNION | IA |
| 2013-12-12 | 563-231-8XXX | 8000–8999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | DUBUQUE | IA |
| 2013-10-08 | 563-776-0XXX | 0000–0999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | WAUCOMA | IA |
| 2013-09-19 | 563-748-8XXX | 8000–8999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | MAQUOKETA | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.