NumberResearchRecent thousands-block assignments
11 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 573
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-02-22 | 573-847-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PAYNESVL | MO |
| 2024-02-22 | 573-867-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ELSBERRY | MO |
| 2024-02-22 | 573-913-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BLOOMSDALE | MO |
| 2024-02-22 | 573-925-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CENTERVL | MO |
| 2024-02-22 | 573-926-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LOUISIANA | MO |
| 2024-02-22 | 573-955-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BISMARCK | MO |
| 2024-02-22 | 573-956-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MONTGORYCY | MO |
| 2024-02-22 | 573-966-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LEADWOOD | MO |
| 2024-02-14 | 573-968-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2024-02-08 | 573-968-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2024-02-07 | 573-285-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSBURG | MO |
| 2024-02-07 | 573-304-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CALIFORNIA | MO |
| 2024-02-07 | 573-395-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TAOS | MO |
| 2024-02-07 | 573-405-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VIENNA | MO |
| 2024-02-07 | 573-455-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WESTPHALIA | MO |
| 2024-02-07 | 573-493-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STELIZABTH | MO |
| 2024-02-07 | 573-520-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RUSSELLVL | MO |
| 2024-02-07 | 573-584-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CENTERTOWN | MO |
| 2024-02-07 | 573-595-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EUGENE | MO |
| 2024-02-07 | 573-728-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ARGYLE | MO |
| 2024-02-07 | 573-744-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FREEBURG | MO |
| 2024-02-07 | 573-763-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHAMOIS | MO |
| 2024-02-07 | 573-799-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LINN | MO |
| 2024-02-07 | 573-903-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BRAZITO | MO |
| 2024-02-07 | 573-907-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ST THOMAS | MO |
| 2024-02-07 | 573-909-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NEWBLOMFLD | MO |
| 2024-02-07 | 573-943-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MTSTERLING | MO |
| 2024-02-07 | 573-972-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | META | MO |
| 2024-02-07 | 573-992-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MORRISON | MO |
| 2024-01-29 | 573-905-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2024-01-29 | 573-905-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2024-01-29 | 573-905-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2024-01-24 | 573-504-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | PUXICO | MO |
| 2024-01-24 | 573-813-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | E PRAIRIE | MO |
| 2024-01-24 | 573-867-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | ELSBERRY | MO |
| 2024-01-22 | 573-428-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2024-01-22 | 573-428-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2024-01-22 | 573-428-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2024-01-22 | 573-428-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2024-01-22 | 573-428-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2024-01-22 | 573-428-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2024-01-17 | 573-375-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ELDON | MO |
| 2024-01-10 | 573-501-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HANNIBAL | MO |
| 2024-01-05 | 573-968-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2024-01-05 | 573-968-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2023-12-27 | 573-428-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-12-27 | 573-428-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-12-18 | 573-541-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | HANNIBAL | MO |
| 2023-12-15 | 573-583-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ORAN | MO |
| 2023-12-06 | 573-266-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | OAK RIDGE | MO |
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.