NumberResearchRecent thousands-block assignments
11 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 573
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 |
|---|---|---|---|---|---|---|---|
| 2026-04-29 | 573-601-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KENNETT | MO |
| 2026-04-29 | 573-835-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | NEWFLORNCE | MO |
| 2026-04-27 | 573-274-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | POTOSI | MO |
| 2026-04-21 | 573-935-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | DEXTER | MO |
| 2026-04-15 | 573-551-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KENNETT | MO |
| 2026-04-02 | 573-437-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | OWENSVILLE | MO |
| 2026-03-25 | 573-707-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | DONIPHAN | MO |
| 2026-03-24 | 573-241-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CUBA | MO |
| 2026-03-23 | 573-571-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2026-03-23 | 573-571-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2026-03-23 | 573-571-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2026-03-23 | 573-571-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2026-03-19 | 573-600-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | HANNIBAL | MO |
| 2026-03-11 | 573-274-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | POTOSI | MO |
| 2026-03-06 | 573-978-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CENTERTOWN | MO |
| 2026-03-03 | 573-660-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | DONIPHAN | MO |
| 2026-02-25 | 573-890-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | FULTON | MO |
| 2026-02-20 | 573-241-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CUBA | MO |
| 2026-02-20 | 573-251-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FREMONT | MO |
| 2026-02-20 | 573-551-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | KENNETT | MO |
| 2026-02-20 | 573-764-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GERALD | MO |
| 2026-02-20 | 573-983-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HUNNEWELL | MO |
| 2026-02-20 | 573-985-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEW LONDON | MO |
| 2026-02-18 | 573-846-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | PERRYVILLE | MO |
| 2026-02-03 | 573-370-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | GIDEON | MO |
| 2026-02-03 | 573-479-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | HAYTI | MO |
| 2026-02-03 | 573-788-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | OLDAPPLETN | MO |
| 2026-01-30 | 573-274-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | POTOSI | MO |
| 2026-01-30 | 573-850-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | POPLAR BLF | MO |
| 2026-01-13 | 573-451-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ST ROBERT | MO |
| 2026-01-13 | 573-679-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BOURBON | MO |
| 2026-01-13 | 573-689-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BUNKER | MO |
| 2026-01-13 | 573-697-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BELLEVIEW | MO |
| 2026-01-13 | 573-834-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BERGER | MO |
| 2026-01-12 | 573-414-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DEXTER | MO |
| 2026-01-12 | 573-543-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | ST MARYS | MO |
| 2025-12-31 | 573-573-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | EMINENCE | MO |
| 2025-12-31 | 573-573-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | EMINENCE | MO |
| 2025-12-31 | 573-573-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | EMINENCE | MO |
| 2025-12-30 | 573-798-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | MOREHOUSE | MO |
| 2025-12-19 | 573-444-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FREDERCKTN | MO |
| 2025-12-11 | 573-322-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ELLSINORE | MO |
| 2025-12-11 | 573-598-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ANNAPOLIS | MO |
| 2025-12-11 | 573-626-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BOSS | MO |
| 2025-12-11 | 573-655-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LA GRANGE | MO |
| 2025-12-11 | 573-767-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MONTICELLO | MO |
| 2025-12-11 | 573-858-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TIMBER | MO |
| 2025-12-03 | 573-940-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ASHLAND | MO |
| 2025-11-26 | 573-781-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | CLIMAX SPG | MO |
| 2025-11-25 | 573-523-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | PIEDMONT | MO |
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.