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
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Feb 2026
Jan 2026
Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-09-11 | 573-381-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CAPEGIRARD | MO |
| 2018-08-15 | 573-304-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CALIFORNIA | MO |
| 2018-08-15 | 573-494-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | EWING | MO |
| 2018-08-08 | 573-245-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | LEASBURG | MO |
| 2018-07-20 | 573-803-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CAPEGIRARD | MO |
| 2018-07-19 | 573-533-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CENTERTOWN | MO |
| 2018-07-19 | 573-584-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CENTERTOWN | MO |
| 2018-07-12 | 573-436-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 6123 | POTOSI | MO |
| 2018-07-11 | 573-203-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | SENATH | MO |
| 2018-07-11 | 573-206-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | BEAUFORT | MO |
| 2018-07-11 | 573-246-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | CAMPBELL | MO |
| 2018-07-11 | 573-279-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | WELLSVILLE | MO |
| 2018-07-11 | 573-326-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | MARSTON | MO |
| 2018-07-11 | 573-352-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | POCAHONTAS | MO |
| 2018-07-11 | 573-412-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | PORTAGEVL | MO |
| 2018-07-11 | 573-505-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | GRAVOIS ML | MO |
| 2018-07-11 | 573-524-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | MACKSCREEK | MO |
| 2018-07-11 | 573-557-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | ELDON | MO |
| 2018-07-11 | 573-725-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | LOUISIANA | MO |
| 2018-07-11 | 573-802-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | RICHWOODS | MO |
| 2018-07-11 | 573-963-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | NEW MADRID | MO |
| 2018-07-10 | 573-204-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | JACKSON | MO |
| 2018-07-10 | 573-273-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | ADVANCE | MO |
| 2018-07-10 | 573-419-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | CHAFFEE | MO |
| 2018-07-10 | 573-542-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | CHARLESTON | MO |
| 2018-07-10 | 573-691-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | JEFFERSNCY | MO |
| 2018-07-10 | 573-930-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | HAYTI | MO |
| 2018-06-28 | 573-285-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | CLARKSBURG | MO |
| 2018-06-28 | 573-294-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | MORRISON | MO |
| 2018-06-28 | 573-296-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | HALLSVILLE | MO |
| 2018-06-28 | 573-304-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | CALIFORNIA | MO |
| 2018-06-28 | 573-477-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | ST THOMAS | MO |
| 2018-06-28 | 573-488-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | ASHLAND | MO |
| 2018-06-28 | 573-491-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | NEWBLOMFLD | MO |
| 2018-06-28 | 573-496-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | BRAZITO | MO |
| 2018-06-28 | 573-520-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | RUSSELLVL | MO |
| 2018-06-28 | 573-533-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | CENTERTOWN | MO |
| 2018-06-28 | 573-595-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | EUGENE | MO |
| 2018-06-28 | 573-606-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | JEFFERSNCY | MO |
| 2018-06-28 | 573-658-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JEFFERSNCY | MO |
| 2018-06-28 | 573-687-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | STURGEON | MO |
| 2018-06-28 | 573-698-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | ROCHEPORT | MO |
| 2018-06-28 | 573-763-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | CHAMOIS | MO |
| 2018-06-28 | 573-933-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | CENTRALIA | MO |
| 2018-06-28 | 573-943-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | MTSTERLING | MO |
| 2018-06-20 | 573-799-0XXX | 0000–0999 | Assigned | VONAGE AMERICA LLC | 197D | LINN | MO |
| 2018-06-05 | 573-554-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | COLUMBIA | MO |
| 2018-06-01 | 573-668-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | BOURBON | MO |
| 2018-05-24 | 573-234-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | COLUMBIA | MO |
| 2018-05-10 | 573-505-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRAVOIS ML | 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.