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 |
|---|---|---|---|---|---|---|---|
| 2008-08-05 | 563-562-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | CALMAR | IA |
| 2008-07-25 | 563-723-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2008-06-17 | 563-552-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DUBUQUE | IA |
| 2008-06-17 | 563-607-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MUSCATINE | IA |
| 2008-06-03 | 563-929-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | MANCHESTER | IA |
| 2008-05-29 | 563-484-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2008-05-05 | 563-449-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2008-05-05 | 563-449-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2008-05-05 | 563-506-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | MUSCATINE | IA |
| 2008-03-19 | 563-209-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVENPORT | IA |
| 2008-02-19 | 563-607-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MUSCATINE | IA |
| 2008-02-14 | 563-209-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVENPORT | IA |
| 2008-02-14 | 563-209-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVENPORT | IA |
| 2008-02-07 | 563-663-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DUBUQUE | IA |
| 2008-01-31 | 563-387-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | DECORAH | IA |
| 2008-01-31 | 563-794-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | WAUKON | IA |
| 2008-01-29 | 563-259-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | CLINTON | IA |
| 2008-01-29 | 563-552-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | DUBUQUE | IA |
| 2008-01-29 | 563-607-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | MUSCATINE | IA |
| 2008-01-29 | 563-748-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | MAQUOKETA | IA |
| 2007-12-18 | 563-726-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2007-12-05 | 563-468-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2007-12-05 | 563-468-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2007-09-28 | 563-499-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVENPORT | IA |
| 2007-09-21 | 563-794-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | WAUKON | IA |
| 2007-09-12 | 563-663-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DUBUQUE | IA |
| 2007-09-07 | 563-387-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DECORAH | IA |
| 2007-08-13 | 563-468-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2007-08-13 | 563-506-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | MUSCATINE | IA |
| 2007-07-12 | 563-221-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2007-07-10 | 563-209-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVENPORT | IA |
| 2007-07-10 | 563-209-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVENPORT | IA |
| 2007-06-26 | 563-449-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | DAVENPORT | IA |
| 2007-06-18 | 563-272-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | MUSCATINE | IA |
| 2007-06-18 | 563-272-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | MUSCATINE | IA |
| 2007-06-07 | 563-209-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVENPORT | IA |
| 2007-06-07 | 563-209-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVENPORT | IA |
| 2007-06-07 | 563-468-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2007-05-10 | 563-554-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MUSCATINE | IA |
| 2007-04-19 | 563-613-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LOW MOOR | IA |
| 2007-03-20 | 563-513-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DUBUQUE | IA |
| 2007-03-20 | 563-513-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DUBUQUE | IA |
| 2007-03-20 | 563-513-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DUBUQUE | IA |
| 2007-03-20 | 563-513-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DUBUQUE | IA |
| 2007-02-23 | 563-499-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVENPORT | IA |
| 2007-02-23 | 563-499-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVENPORT | IA |
| 2007-02-12 | 563-554-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | MUSCATINE | IA |
| 2007-02-08 | 563-564-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DUBUQUE | IA |
| 2007-01-16 | 563-564-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DUBUQUE | IA |
| 2007-01-09 | 563-886-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | TIPTON | 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.