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 |
|---|---|---|---|---|---|---|---|
| 2026-09-17 | 563-517-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | DECORAH | IA |
| 2026-09-14 | 563-215-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | CLINTON | IA |
| 2026-09-14 | 563-215-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | CLINTON | IA |
| 2026-09-10 | 563-283-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | MUSCATINE | IA |
| 2026-09-10 | 563-283-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | MUSCATINE | IA |
| 2026-09-03 | 563-280-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2026-09-03 | 563-300-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2026-09-02 | 563-221-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DE WITT | IA |
| 2026-09-01 | 563-201-7XXX | 7000–7999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | DYERSVILLE | IA |
| 2026-09-01 | 563-465-6XXX | 6000–6999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | FARLEY | IA |
| 2026-09-01 | 563-624-3XXX | 3000–3999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | EPWORTH | IA |
| 2026-08-25 | 563-777-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | SABULA | IA |
| 2026-08-25 | 563-845-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | DUBUQUE | IA |
| 2026-08-24 | 563-216-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DUBUQUE | IA |
| 2026-08-24 | 563-216-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DUBUQUE | IA |
| 2026-08-24 | 563-516-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | ELKADER | IA |
| 2026-08-17 | 563-300-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2026-08-11 | 563-644-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DECORAH | IA |
| 2026-08-06 | 563-594-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2026-07-23 | 563-257-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2026-07-21 | 563-215-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | CLINTON | IA |
| 2026-07-21 | 563-215-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | CLINTON | IA |
| 2026-07-21 | 563-257-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2026-07-21 | 563-456-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DAVENPORT | IA |
| 2026-07-09 | 563-300-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | DAVENPORT | IA |
| 2026-07-01 | 563-238-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LAWLER | IA |
| 2026-06-16 | 563-453-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | ELKADER | IA |
| 2026-06-12 | 563-280-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2026-06-03 | 563-257-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVENPORT | IA |
| 2026-06-03 | 563-280-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVENPORT | IA |
| 2026-06-03 | 563-300-3XXX | 3000–3999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | DAVENPORT | IA |
| 2026-05-19 | 563-456-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | DAVENPORT | IA |
| 2026-05-19 | 563-456-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | DAVENPORT | IA |
| 2026-05-18 | 563-330-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | MONONA | IA |
| 2026-04-28 | 563-280-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | DAVENPORT | IA |
| 2026-04-28 | 563-280-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | DAVENPORT | IA |
| 2026-04-28 | 563-280-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | DAVENPORT | IA |
| 2026-04-28 | 563-280-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | DAVENPORT | IA |
| 2026-04-28 | 563-280-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | DAVENPORT | IA |
| 2026-04-06 | 563-257-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | DAVENPORT | IA |
| 2026-03-11 | 563-521-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | MAQUOKETA | IA |
| 2026-03-04 | 563-216-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DUBUQUE | IA |
| 2026-03-03 | 563-223-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | ELDRIDGE | IA |
| 2026-02-25 | 563-822-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANCHESTER | IA |
| 2026-02-20 | 563-594-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DAVENPORT | IA |
| 2026-02-11 | 563-444-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | ATALISSA | IA |
| 2026-01-27 | 563-208-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | MUSCATINE | IA |
| 2026-01-27 | 563-208-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | MUSCATINE | IA |
| 2026-01-27 | 563-208-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | MUSCATINE | IA |
| 2026-01-27 | 563-222-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | MUSCATINE | 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.