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 |
|---|---|---|---|---|---|---|---|
| 2015-07-28 | 573-514-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | COLUMBIA | MO |
| 2015-07-28 | 573-600-0XXX | 0000–0999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | HANNIBAL | MO |
| 2015-07-28 | 573-644-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2015-07-22 | 573-542-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CHARLESTON | MO |
| 2015-07-22 | 573-832-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | VERSAILLES | MO |
| 2015-07-16 | 573-296-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HALLSVILLE | MO |
| 2015-07-14 | 573-818-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | COLUMBIA | MO |
| 2015-06-18 | 573-420-9XXX | 9000–9999 | Assigned | WINDSTREAM MISSOURI, INC. | 1885 | DIXON | MO |
| 2015-06-18 | 573-523-9XXX | 9000–9999 | Assigned | WINDSTREAM MISSOURI, INC. | 1885 | PIEDMONT | MO |
| 2015-06-18 | 573-566-9XXX | 9000–9999 | Assigned | WINDSTREAM MISSOURI, INC. | 1885 | STOVER | MO |
| 2015-06-18 | 573-702-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | BLOOMSDALE | MO |
| 2015-06-18 | 573-829-9XXX | 9000–9999 | Assigned | WINDSTREAM MISSOURI, INC. | 1885 | CROCKER | MO |
| 2015-06-18 | 573-868-9XXX | 9000–9999 | Assigned | WINDSTREAM MISSOURI, INC. | 1885 | GREENVILLE | MO |
| 2015-06-18 | 573-939-9XXX | 9000–9999 | Assigned | WINDSTREAM MISSOURI, INC. | 1885 | VANDALIA | MO |
| 2015-06-11 | 573-901-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | MALDEN | MO |
| 2015-06-10 | 573-896-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2015-06-09 | 573-544-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FULTON | MO |
| 2015-06-09 | 573-832-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | VERSAILLES | MO |
| 2015-06-09 | 573-832-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | VERSAILLES | MO |
| 2015-06-08 | 573-310-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FULTON | MO |
| 2015-05-15 | 573-554-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COLUMBIA | MO |
| 2015-05-11 | 573-933-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CENTRALIA | MO |
| 2015-05-11 | 573-933-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CENTRALIA | MO |
| 2015-05-08 | 573-260-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CLIMAX SPG | MO |
| 2015-05-08 | 573-738-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SENATH | MO |
| 2015-05-04 | 573-878-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | BEAUFORT | MO |
| 2015-04-24 | 573-649-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | E PRAIRIE | MO |
| 2015-04-24 | 573-649-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | E PRAIRIE | MO |
| 2015-04-24 | 573-838-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SIKESTON | MO |
| 2015-04-24 | 573-838-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SIKESTON | MO |
| 2015-04-23 | 573-340-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | WELLSVILLE | MO |
| 2015-04-23 | 573-684-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | WELLSVILLE | MO |
| 2015-04-15 | 573-577-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HANNIBAL | MO |
| 2015-04-14 | 573-987-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | JACKSON | MO |
| 2015-04-02 | 573-542-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHARLESTON | MO |
| 2015-03-31 | 573-746-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | LKOZKOSBCH | MO |
| 2015-03-24 | 573-607-6XXX | 6000–6999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9784 | COLUMBIA | MO |
| 2015-03-24 | 573-607-7XXX | 7000–7999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9784 | COLUMBIA | MO |
| 2015-03-24 | 573-607-8XXX | 8000–8999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9784 | COLUMBIA | MO |
| 2015-03-16 | 573-803-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CAPEGIRARD | MO |
| 2015-03-13 | 573-410-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | CAMDENTON | MO |
| 2015-02-27 | 573-987-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JACKSON | MO |
| 2015-02-27 | 573-987-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JACKSON | MO |
| 2015-02-19 | 573-413-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | POPLAR BLF | MO |
| 2015-02-09 | 573-238-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARBLEHILL | MO |
| 2015-02-09 | 573-519-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | CAPEGIRARD | MO |
| 2015-02-09 | 573-575-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | CARUTHRSVL | MO |
| 2015-02-05 | 573-500-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CAMPBELL | MO |
| 2015-02-02 | 573-262-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | ORAN | MO |
| 2015-02-02 | 573-283-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | ESSEX | 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.