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 |
|---|---|---|---|---|---|---|---|
| 2023-07-13 | 573-354-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | OXLY | MO |
| 2023-07-13 | 573-845-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | ADVANCE | MO |
| 2023-07-13 | 573-850-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | POPLAR BLF | MO |
| 2023-07-11 | 573-462-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | JEFFERSNCY | MO |
| 2023-07-11 | 573-506-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | TEBBETTS | MO |
| 2023-07-11 | 573-799-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LINN | MO |
| 2023-07-11 | 573-970-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBIA | MO |
| 2023-07-10 | 573-333-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CARUTHRSVL | MO |
| 2023-07-06 | 573-257-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JEFFERSNCY | MO |
| 2023-07-05 | 573-257-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JEFFERSNCY | MO |
| 2023-07-05 | 573-257-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JEFFERSNCY | MO |
| 2023-07-05 | 573-553-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WESTPHALIA | MO |
| 2023-07-05 | 573-902-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | PERRYVILLE | MO |
| 2023-06-29 | 573-918-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-06-29 | 573-918-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-06-29 | 573-918-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-06-29 | 573-918-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-06-29 | 573-941-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | COLUMBIA | MO |
| 2023-06-28 | 573-940-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | ASHLAND | MO |
| 2023-06-27 | 573-493-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | STELIZABTH | MO |
| 2023-06-27 | 573-498-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | EUGENE | MO |
| 2023-06-27 | 573-520-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | RUSSELLVL | MO |
| 2023-06-27 | 573-536-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | TAOS | MO |
| 2023-06-27 | 573-584-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | CENTERTOWN | MO |
| 2023-06-27 | 573-861-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2023-06-27 | 573-970-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2023-06-27 | 573-970-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2023-06-06 | 573-902-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | PERRYVILLE | MO |
| 2023-06-02 | 573-902-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | PERRYVILLE | MO |
| 2023-06-02 | 573-902-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | PERRYVILLE | MO |
| 2023-06-02 | 573-902-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | PERRYVILLE | MO |
| 2023-06-02 | 573-902-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | PERRYVILLE | MO |
| 2023-05-24 | 573-914-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-24 | 573-914-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-24 | 573-914-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-23 | 573-906-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-23 | 573-906-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-23 | 573-906-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-23 | 573-906-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-23 | 573-906-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-23 | 573-906-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-23 | 573-906-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-05-17 | 573-351-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | DONIPHAN | MO |
| 2023-05-15 | 573-918-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-05-15 | 573-918-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-05-15 | 573-918-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-05-15 | 573-918-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-05-12 | 573-904-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-05-12 | 573-904-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-05-12 | 573-904-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | 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.