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 |
|---|---|---|---|---|---|---|---|
| 2024-09-12 | 573-235-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | CHARLESTON | MO |
| 2024-09-12 | 573-573-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | EMINENCE | MO |
| 2024-09-12 | 573-573-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | EMINENCE | MO |
| 2024-09-05 | 573-854-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | POTOSI | MO |
| 2024-08-23 | 573-937-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNESVL | MO |
| 2024-08-21 | 573-988-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2024-08-21 | 573-988-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2024-08-21 | 573-988-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2024-08-20 | 573-337-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST ROBERT | MO |
| 2024-08-15 | 573-484-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BEAUFORT | MO |
| 2024-08-15 | 573-512-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | FTLENARDWD | MO |
| 2024-08-15 | 573-873-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CAMDENTON | MO |
| 2024-08-14 | 573-258-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SIKESTON | MO |
| 2024-08-13 | 573-965-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | VERSAILLES | MO |
| 2024-08-05 | 573-997-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2024-07-24 | 573-902-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | PERRYVILLE | MO |
| 2024-07-19 | 573-720-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BLYTHEVL | MO |
| 2024-07-17 | 573-981-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAMDENTON | MO |
| 2024-07-12 | 573-988-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBIA | MO |
| 2024-07-05 | 573-601-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KENNETT | MO |
| 2024-07-03 | 573-440-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | FREDERCKTN | MO |
| 2024-07-03 | 573-505-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | GRAVOIS ML | MO |
| 2024-07-03 | 573-678-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | RICHWOODS | MO |
| 2024-07-03 | 573-952-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | FLAT RIVER | MO |
| 2024-07-03 | 573-988-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2024-07-03 | 573-988-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2024-06-24 | 573-415-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2024-06-24 | 573-415-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2024-06-24 | 573-415-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2024-06-17 | 573-641-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CLARK | MO |
| 2024-06-12 | 573-219-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | COLUMBIA | MO |
| 2024-06-12 | 573-687-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | STURGEON | MO |
| 2024-06-11 | 573-571-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | CAPEGIRARD | MO |
| 2024-06-07 | 573-617-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | SULLIVAN | MO |
| 2024-06-04 | 573-766-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BELGRADE | MO |
| 2024-05-21 | 573-941-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBIA | MO |
| 2024-05-14 | 573-638-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2024-05-02 | 573-981-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | CAMDENTON | MO |
| 2024-05-01 | 573-942-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SANTA FE | MO |
| 2024-04-16 | 573-540-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | COLUMBIA | MO |
| 2024-04-10 | 573-414-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DEXTER | MO |
| 2024-04-10 | 573-931-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SIKESTON | MO |
| 2024-03-29 | 573-980-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BONNETERRE | MO |
| 2024-03-29 | 573-981-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CAMDENTON | MO |
| 2024-03-29 | 573-991-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MEXICO | MO |
| 2024-03-27 | 573-395-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | TAOS | MO |
| 2024-03-27 | 573-520-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | RUSSELLVL | MO |
| 2024-03-27 | 573-903-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | BRAZITO | MO |
| 2024-03-27 | 573-905-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | JEFFERSNCY | MO |
| 2024-03-27 | 573-968-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBIA | 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.