NumberResearchRecent thousands-block assignments
16 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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, last 30 days — NPA 563
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-11-13 | 563-657-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | WALCOTT | IA |
| 2013-11-08 | 563-726-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2013-11-08 | 563-726-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2013-11-08 | 563-748-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | MAQUOKETA | IA |
| 2013-11-08 | 563-748-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | MAQUOKETA | IA |
| 2013-10-11 | 563-203-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | CRESCO | IA |
| 2013-10-08 | 563-776-0XXX | 0000–0999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | WAUCOMA | IA |
| 2013-10-04 | 563-258-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DUBUQUE | IA |
| 2013-10-04 | 563-559-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | CLINTON | IA |
| 2013-09-19 | 563-748-8XXX | 8000–8999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | MAQUOKETA | IA |
| 2013-09-17 | 563-422-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | WEST UNION | IA |
| 2013-09-05 | 563-217-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | WAUKON | IA |
| 2013-08-21 | 563-949-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2013-08-16 | 563-231-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | DUBUQUE | IA |
| 2013-08-16 | 563-277-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | DECORAH | IA |
| 2013-08-16 | 563-316-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | MUSCATINE | IA |
| 2013-08-16 | 563-559-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | CLINTON | IA |
| 2013-07-10 | 563-362-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DAVENPORT | IA |
| 2013-06-21 | 563-742-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVENPORT | IA |
| 2013-05-16 | 563-362-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | DAVENPORT | IA |
| 2013-05-16 | 563-362-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | DAVENPORT | IA |
| 2013-04-12 | 563-316-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | MUSCATINE | IA |
| 2013-04-02 | 563-221-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2013-03-18 | 563-362-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2013-03-18 | 563-362-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2013-03-14 | 563-316-5XXX | 5000–5999 | Assigned | CS TECHNOLOGIES, INC. - IA | 204A | MUSCATINE | IA |
| 2013-03-05 | 563-412-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | WEST UNION | IA |
| 2013-03-05 | 563-538-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | LANSING | IA |
| 2013-03-05 | 563-559-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | CLINTON | IA |
| 2013-03-05 | 563-562-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | CALMAR | IA |
| 2013-03-05 | 563-794-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | WAUKON | IA |
| 2013-02-27 | 563-362-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | DAVENPORT | IA |
| 2013-02-15 | 563-277-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DECORAH | IA |
| 2013-01-24 | 563-554-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | MUSCATINE | IA |
| 2013-01-22 | 563-258-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DUBUQUE | IA |
| 2013-01-18 | 563-362-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2012-12-14 | 563-594-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DAVENPORT | IA |
| 2012-11-14 | 563-447-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | WALCOTT | IA |
| 2012-11-14 | 563-447-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | WALCOTT | IA |
| 2012-11-14 | 563-447-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | WALCOTT | IA |
| 2012-11-14 | 563-484-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2012-11-14 | 563-484-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2012-11-14 | 563-484-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2012-11-14 | 563-549-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2012-11-14 | 563-549-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2012-11-14 | 563-748-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | MAQUOKETA | IA |
| 2012-11-14 | 563-748-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | MAQUOKETA | IA |
| 2012-11-07 | 563-362-1XXX | 1000–1999 | Assigned | NUSO, LLC | 551G | DAVENPORT | IA |
| 2012-11-01 | 563-949-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2012-10-25 | 563-213-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DUBUQUE | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.