NumberResearchRecent thousands-block assignments
16 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, 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 |
|---|---|---|---|---|---|---|---|
| 2023-05-24 | 563-205-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2023-05-08 | 563-522-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LOW MOOR | IA |
| 2023-04-26 | 563-351-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DURANT | IA |
| 2023-04-12 | 563-477-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | CLINTON | IA |
| 2023-04-06 | 563-341-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DUBUQUE | IA |
| 2023-04-03 | 563-294-5XXX | 5000–5999 | Assigned | AIRUS, INC - IA | 423H | WEST UNION | IA |
| 2023-03-07 | 563-205-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | DAVENPORT | IA |
| 2023-01-24 | 563-330-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | MONONA | IA |
| 2023-01-09 | 563-526-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2022-12-15 | 563-356-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | CHESTER | IA |
| 2022-12-15 | 563-605-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | POSTVILLE | IA |
| 2022-11-25 | 563-644-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DECORAH | IA |
| 2022-11-22 | 563-366-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | IA |
| 2022-11-22 | 563-366-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | IA |
| 2022-11-22 | 563-366-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | IA |
| 2022-11-15 | 563-666-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | WALCOTT | IA |
| 2022-11-15 | 563-844-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2022-11-15 | 563-844-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2022-11-15 | 563-844-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2022-11-15 | 563-844-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2022-11-09 | 563-425-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | FAYETTE | IA |
| 2022-11-03 | 563-298-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | GUTTENBERG | IA |
| 2022-11-03 | 563-329-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | MCGREGOR | IA |
| 2022-10-25 | 563-341-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DUBUQUE | IA |
| 2022-10-25 | 563-341-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DUBUQUE | IA |
| 2022-10-25 | 563-341-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DUBUQUE | IA |
| 2022-10-21 | 563-661-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | MAQUOKETA | IA |
| 2022-10-17 | 563-276-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | WAUKON | IA |
| 2022-10-10 | 563-550-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CALMAR | IA |
| 2022-10-05 | 563-900-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DAVENPORT | IA |
| 2022-09-28 | 563-283-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | MUSCATINE | IA |
| 2022-09-16 | 563-944-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | LOWDEN | IA |
| 2022-09-02 | 563-341-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DUBUQUE | IA |
| 2022-09-01 | 563-296-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2022-09-01 | 563-296-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2022-08-30 | 563-363-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | MANCHESTER | IA |
| 2022-08-25 | 563-318-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | TIPTON | IA |
| 2022-08-07 | 563-283-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | MUSCATINE | IA |
| 2022-08-07 | 563-307-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | DUBUQUE | IA |
| 2022-08-07 | 563-477-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CLINTON | IA |
| 2022-08-07 | 563-644-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | DECORAH | IA |
| 2022-07-19 | 563-306-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2022-07-19 | 563-306-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2022-07-19 | 563-306-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2022-07-19 | 563-306-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2022-07-19 | 563-306-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2022-05-17 | 563-875-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | DYERSVILLE | IA |
| 2022-05-04 | 563-307-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DUBUQUE | IA |
| 2022-05-04 | 563-307-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DUBUQUE | IA |
| 2022-04-28 | 563-366-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | 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.