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 |
|---|---|---|---|---|---|---|---|
| 2024-10-21 | 563-346-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-526-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-526-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-528-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-528-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-528-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-551-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-844-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-844-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-844-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-844-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-867-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-867-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-867-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-867-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-867-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-867-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-867-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-895-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-895-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-900-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-21 | 563-949-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DAVENPORT | IA |
| 2024-10-03 | 563-269-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2024-10-03 | 563-269-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2024-10-03 | 563-269-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2024-09-27 | 563-677-3XXX | 3000–3999 | Assigned | AUREON COMMUNICATIONS, LLC | 444G | CHARLOTTE | IA |
| 2024-09-25 | 563-205-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DAVENPORT | IA |
| 2024-09-09 | 563-644-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DECORAH | IA |
| 2024-09-06 | 563-278-4XXX | 4000–4999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | CLINTON | IA |
| 2024-08-08 | 563-551-8XXX | 8000–8999 | Assigned | NUSO, LLC | 732J | DAVENPORT | IA |
| 2024-08-01 | 563-929-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANCHESTER | IA |
| 2024-07-31 | 563-201-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DYERSVILLE | IA |
| 2024-07-17 | 563-221-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DE WITT | IA |
| 2024-07-17 | 563-228-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | BELLEVUE | IA |
| 2024-07-17 | 563-269-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2024-07-17 | 563-269-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2024-07-17 | 563-454-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | WYOMING | IA |
| 2024-07-17 | 563-465-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FARLEY | IA |
| 2024-07-17 | 563-521-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MAQUOKETA | IA |
| 2024-07-17 | 563-837-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FREDECKSBG | IA |
| 2024-06-26 | 563-222-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MUSCATINE | IA |
| 2024-06-21 | 563-216-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DUBUQUE | IA |
| 2024-06-12 | 563-661-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | MAQUOKETA | IA |
| 2024-05-17 | 563-346-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2024-04-16 | 563-216-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DUBUQUE | IA |
| 2024-03-27 | 563-554-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MUSCATINE | IA |
| 2024-03-15 | 563-900-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVENPORT | IA |
| 2024-03-05 | 563-218-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | WILTON | IA |
| 2024-02-09 | 563-215-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLINTON | IA |
| 2024-01-30 | 563-208-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | MUSCATINE | 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.