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 |
|---|---|---|---|---|---|---|---|
| 2023-02-27 | 573-650-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | POTOSI | MO |
| 2023-02-27 | 573-650-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | POTOSI | MO |
| 2023-02-17 | 573-577-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | HANNIBAL | MO |
| 2023-02-15 | 573-318-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CHAFFEE | MO |
| 2023-02-13 | 573-383-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CANTON | MO |
| 2023-02-13 | 573-515-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | SHELBINA | MO |
| 2023-02-10 | 573-861-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | JEFFERSNCY | MO |
| 2023-02-08 | 573-970-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2023-01-24 | 573-841-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-01-24 | 573-841-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-01-24 | 573-841-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-01-23 | 573-957-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-01-23 | 573-957-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-01-23 | 573-957-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-01-23 | 573-957-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-01-23 | 573-957-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2023-01-19 | 573-810-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBIA | MO |
| 2023-01-18 | 573-321-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ADVANCE | MO |
| 2023-01-18 | 573-370-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GIDEON | MO |
| 2023-01-17 | 573-709-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | CLARKSBURG | MO |
| 2023-01-11 | 573-952-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | FLAT RIVER | MO |
| 2023-01-09 | 573-305-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-01-09 | 573-807-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-01-09 | 573-807-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-01-09 | 573-807-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-01-09 | 573-807-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-01-09 | 573-807-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2023-01-09 | 573-807-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2022-12-27 | 573-731-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | MONROECITY | MO |
| 2022-12-22 | 573-372-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRAVOIS ML | MO |
| 2022-12-22 | 573-584-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CENTERTOWN | MO |
| 2022-12-15 | 573-898-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ELSBERRY | MO |
| 2022-12-15 | 573-902-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRYVILLE | MO |
| 2022-12-15 | 573-902-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PERRYVILLE | MO |
| 2022-12-09 | 573-383-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | CANTON | MO |
| 2022-12-05 | 573-658-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2022-12-05 | 573-658-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2022-12-01 | 573-616-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JEFFERSNCY | MO |
| 2022-11-29 | 573-850-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | POPLAR BLF | MO |
| 2022-11-22 | 573-354-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | OXLY | MO |
| 2022-11-18 | 573-707-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | DONIPHAN | MO |
| 2022-11-17 | 573-226-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | EMINENCE | MO |
| 2022-11-17 | 573-297-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | WAPPAPLLPK | MO |
| 2022-11-16 | 573-255-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | PONDER | MO |
| 2022-11-16 | 573-316-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | CARDWELL | MO |
| 2022-11-16 | 573-602-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | ELDON | MO |
| 2022-11-16 | 573-949-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | HALLSVILLE | MO |
| 2022-11-15 | 573-630-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | BONNETERRE | MO |
| 2022-11-15 | 573-903-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | BRAZITO | MO |
| 2022-11-15 | 573-903-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | BRAZITO | 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.