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 |
|---|---|---|---|---|---|---|---|
| 2016-03-15 | 573-315-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | FLAT RIVER | MO |
| 2016-03-15 | 573-574-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | MONTGORYCY | MO |
| 2016-03-15 | 573-574-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | MONTGORYCY | MO |
| 2016-03-15 | 573-742-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | BOWLNGGREN | MO |
| 2016-03-15 | 573-742-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | BOWLNGGREN | MO |
| 2016-03-11 | 573-279-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | WELLSVILLE | MO |
| 2016-03-11 | 573-279-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | WELLSVILLE | MO |
| 2016-03-11 | 573-605-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PERRYVILLE | MO |
| 2016-03-08 | 573-250-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | CLARKSVL | MO |
| 2016-03-08 | 573-250-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | CLARKSVL | MO |
| 2016-03-08 | 573-312-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | ELSBERRY | MO |
| 2016-03-08 | 573-312-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | ELSBERRY | MO |
| 2016-03-08 | 573-430-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FLAT RIVER | MO |
| 2016-03-08 | 573-430-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FLAT RIVER | MO |
| 2016-03-08 | 573-713-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | FARMINGTON | MO |
| 2016-03-08 | 573-713-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | FARMINGTON | MO |
| 2016-03-08 | 573-725-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | LOUISIANA | MO |
| 2016-03-08 | 573-725-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | LOUISIANA | MO |
| 2016-03-07 | 573-260-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | CLIMAX SPG | MO |
| 2016-03-07 | 573-260-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | CLIMAX SPG | MO |
| 2016-03-07 | 573-363-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | MACKSCREEK | MO |
| 2016-03-07 | 573-363-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | MACKSCREEK | MO |
| 2016-03-07 | 573-502-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | GRAVOIS ML | MO |
| 2016-03-07 | 573-502-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | GRAVOIS ML | MO |
| 2016-03-07 | 573-678-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | RICHWOODS | MO |
| 2016-03-07 | 573-678-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | RICHWOODS | MO |
| 2016-03-07 | 573-878-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | BEAUFORT | MO |
| 2016-03-07 | 573-878-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | BEAUFORT | MO |
| 2016-03-04 | 573-375-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | ELDON | MO |
| 2016-03-04 | 573-375-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | ELDON | MO |
| 2016-03-04 | 573-410-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | CAMDENTON | MO |
| 2016-03-04 | 573-410-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | CAMDENTON | MO |
| 2016-03-04 | 573-591-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | MEXICO | MO |
| 2016-03-04 | 573-591-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | MEXICO | MO |
| 2016-02-29 | 573-745-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | LKOZKOSBCH | MO |
| 2016-02-29 | 573-745-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | LKOZKOSBCH | MO |
| 2016-02-26 | 573-832-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | VERSAILLES | MO |
| 2016-02-26 | 573-832-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | VERSAILLES | MO |
| 2016-02-12 | 573-987-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JACKSON | MO |
| 2016-02-12 | 573-987-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JACKSON | MO |
| 2016-02-08 | 573-352-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | POCAHONTAS | MO |
| 2016-01-29 | 573-708-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAPEGIRARD | MO |
| 2016-01-15 | 573-284-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | VERSAILLES | MO |
| 2016-01-14 | 573-482-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FARMINGTON | MO |
| 2016-01-14 | 573-550-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FULTON | MO |
| 2016-01-12 | 573-677-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CUBA | MO |
| 2016-01-12 | 573-842-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNESVL | MO |
| 2016-01-08 | 573-310-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FULTON | MO |
| 2016-01-04 | 573-303-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | COLUMBIA | MO |
| 2016-01-04 | 573-476-9XXX | 9000–9999 | 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.