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 |
|---|---|---|---|---|---|---|---|
| 2015-12-30 | 573-444-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | FREDERCKTN | MO |
| 2015-12-23 | 573-501-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | HANNIBAL | MO |
| 2015-12-22 | 573-282-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARBLEHILL | MO |
| 2015-12-17 | 573-604-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WINONA | MO |
| 2015-12-09 | 573-412-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PORTAGEVL | MO |
| 2015-12-01 | 573-410-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAMDENTON | MO |
| 2015-11-30 | 573-832-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | VERSAILLES | MO |
| 2015-11-20 | 573-413-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | POPLAR BLF | MO |
| 2015-11-20 | 573-612-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROLLA | MO |
| 2015-11-20 | 573-691-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JEFFERSNCY | MO |
| 2015-11-20 | 573-691-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JEFFERSNCY | MO |
| 2015-11-16 | 573-735-7XXX | 7000–7999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | MONROECITY | MO |
| 2015-11-06 | 573-476-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2015-10-21 | 573-310-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FULTON | MO |
| 2015-10-19 | 573-292-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BIRCH TREE | MO |
| 2015-10-09 | 573-588-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SHELBINA | MO |
| 2015-10-09 | 573-633-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SHELBYVL | MO |
| 2015-10-09 | 573-735-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MONROECITY | MO |
| 2015-10-08 | 573-362-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | FISK | MO |
| 2015-10-08 | 573-432-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | IRONTON | MO |
| 2015-10-08 | 573-773-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | PALMYRA | MO |
| 2015-10-06 | 573-316-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CARDWELL | MO |
| 2015-10-02 | 573-327-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FLAT RIVER | MO |
| 2015-10-02 | 573-518-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FLAT RIVER | MO |
| 2015-10-02 | 573-626-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF EAST MISSOURI, LLC | 1151 | BOSS | MO |
| 2015-10-02 | 573-702-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BLOOMSDALE | MO |
| 2015-09-28 | 573-854-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | POTOSI | MO |
| 2015-09-28 | 573-854-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | POTOSI | MO |
| 2015-09-28 | 573-944-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FREDERCKTN | MO |
| 2015-09-28 | 573-944-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FREDERCKTN | MO |
| 2015-09-23 | 573-832-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | VERSAILLES | MO |
| 2015-09-21 | 573-702-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BLOOMSDALE | MO |
| 2015-09-21 | 573-702-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BLOOMSDALE | MO |
| 2015-09-08 | 573-984-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | STEGNVIEVE | MO |
| 2015-09-02 | 573-226-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | EMINENCE | MO |
| 2015-09-02 | 573-251-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | FREMONT | MO |
| 2015-09-02 | 573-323-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | VAN BUREN | MO |
| 2015-09-02 | 573-325-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | WINONA | MO |
| 2015-09-02 | 573-648-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CENTERVL | MO |
| 2015-09-02 | 573-689-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | BUNKER | MO |
| 2015-09-01 | 573-930-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | HAYTI | MO |
| 2015-08-25 | 573-309-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | BELL CITY | MO |
| 2015-08-25 | 573-316-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CARDWELL | MO |
| 2015-08-25 | 573-319-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | MACKSCREEK | MO |
| 2015-08-25 | 573-414-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DEXTER | MO |
| 2015-08-25 | 573-545-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | BENTON | MO |
| 2015-08-25 | 573-621-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SIKESTON | MO |
| 2015-08-20 | 573-658-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | JEFFERSNCY | MO |
| 2015-08-19 | 573-487-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | LESTERVL | MO |
| 2015-08-13 | 573-444-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | FREDERCKTN | 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.