NumberResearchRecent thousands-block assignments
11 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 |
|---|---|---|---|---|---|---|---|
| 2019-01-03 | 573-836-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | CAMDENTON | MO |
| 2019-01-03 | 573-898-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | ELSBERRY | MO |
| 2019-01-03 | 573-898-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | ELSBERRY | MO |
| 2019-01-03 | 573-920-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | ELDON | MO |
| 2019-01-03 | 573-920-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | ELDON | MO |
| 2018-12-21 | 573-753-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | STEELVILLE | MO |
| 2018-12-21 | 573-849-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FARBER | MO |
| 2018-12-19 | 573-383-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CANTON | MO |
| 2018-12-19 | 573-400-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | WESTQUINCY | MO |
| 2018-12-19 | 573-726-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | BERNIE | MO |
| 2018-12-18 | 573-468-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SULLIVAN | MO |
| 2018-12-13 | 573-409-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | HERMANN | MO |
| 2018-12-12 | 573-516-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FLAT RIVER | MO |
| 2018-12-04 | 573-516-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | FLAT RIVER | MO |
| 2018-11-30 | 573-386-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | AUXVASSE | MO |
| 2018-11-30 | 573-835-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NEWFLORNCE | MO |
| 2018-11-29 | 573-284-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | VERSAILLES | MO |
| 2018-11-27 | 573-273-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | ADVANCE | MO |
| 2018-11-27 | 573-389-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | OAK RIDGE | MO |
| 2018-11-26 | 573-219-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2018-11-14 | 573-527-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | BIRCH TREE | MO |
| 2018-11-09 | 573-423-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | BELLEVIEW | MO |
| 2018-11-09 | 573-696-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HALLSVILLE | MO |
| 2018-11-09 | 573-766-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | BELGRADE | MO |
| 2018-11-09 | 573-994-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | ANNAPOLIS | MO |
| 2018-11-08 | 573-245-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | LEASBURG | MO |
| 2018-11-08 | 573-251-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | FREMONT | MO |
| 2018-11-08 | 573-299-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | VICHY | MO |
| 2018-11-08 | 573-306-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | EMINENCE | MO |
| 2018-11-08 | 573-307-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | WINONA | MO |
| 2018-11-08 | 573-320-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | VAN BUREN | MO |
| 2018-11-08 | 573-367-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | SAFE | MO |
| 2018-11-08 | 573-383-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | CANTON | MO |
| 2018-11-08 | 573-400-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | WESTQUINCY | MO |
| 2018-11-08 | 573-409-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | HERMANN | MO |
| 2018-11-08 | 573-425-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | HUNNEWELL | MO |
| 2018-11-08 | 573-432-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | IRONTON | MO |
| 2018-11-08 | 573-435-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | EDGAR SPG | MO |
| 2018-11-08 | 573-436-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | POTOSI | MO |
| 2018-11-08 | 573-463-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | BUNKER | MO |
| 2018-11-08 | 573-487-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | LESTERVL | MO |
| 2018-11-08 | 573-490-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | LEWISTOWN | MO |
| 2018-11-08 | 573-515-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | SHELBINA | MO |
| 2018-11-08 | 573-531-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | TIMBER | MO |
| 2018-11-08 | 573-538-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | BOSS | MO |
| 2018-11-08 | 573-548-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | MONTAUK | MO |
| 2018-11-08 | 573-570-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | PERRY | MO |
| 2018-11-08 | 573-623-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | OATES | MO |
| 2018-11-08 | 573-633-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | SHELBYVL | MO |
| 2018-11-08 | 573-652-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | LA GRANGE | MO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.