NumberResearchRecent thousands-block assignments
11 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-06-20 | 573-699-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SAFE | MO |
| 2025-06-20 | 573-927-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | STANTON | MO |
| 2025-06-18 | 573-237-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEW HAVEN | MO |
| 2025-06-18 | 573-325-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WINONA | MO |
| 2025-06-18 | 573-377-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | STOVER | MO |
| 2025-06-18 | 573-824-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ALTEBGFRHN | MO |
| 2025-06-10 | 573-251-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FREMONT | MO |
| 2025-06-10 | 573-435-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EDGAR SPG | MO |
| 2025-06-10 | 573-459-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LYON | MO |
| 2025-06-10 | 573-546-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | IRONTON | MO |
| 2025-06-10 | 573-548-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MONTAUK | MO |
| 2025-06-10 | 573-627-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JAPAN | MO |
| 2025-06-10 | 573-648-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CENTERVL | MO |
| 2025-06-10 | 573-674-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LICKING | MO |
| 2025-06-10 | 573-697-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BELLEVIEW | MO |
| 2025-06-10 | 573-710-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MARTINSBG | MO |
| 2025-06-10 | 573-732-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BOURBON | MO |
| 2025-06-10 | 573-764-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GERALD | MO |
| 2025-06-10 | 573-844-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CROCKER | MO |
| 2025-06-10 | 573-885-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CUBA | MO |
| 2025-06-10 | 573-985-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEW LONDON | MO |
| 2025-05-07 | 573-232-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ST ROBERT | MO |
| 2025-05-07 | 573-486-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HERMANN | MO |
| 2025-05-07 | 573-494-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EWING | MO |
| 2025-05-07 | 573-565-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PERRY | MO |
| 2025-05-07 | 573-646-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BLAND | MO |
| 2025-05-07 | 573-655-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LA GRANGE | MO |
| 2025-05-07 | 573-715-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SALEM | MO |
| 2025-05-07 | 573-735-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MONROECITY | MO |
| 2025-05-07 | 573-758-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GRANDIN | MO |
| 2025-05-07 | 573-766-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BELGRADE | MO |
| 2025-05-07 | 573-973-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EOLIA | MO |
| 2025-05-07 | 573-977-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BIGSPRING | MO |
| 2025-05-07 | 573-994-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ANNAPOLIS | MO |
| 2025-05-05 | 573-235-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHARLESTON | MO |
| 2025-05-05 | 573-235-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CHARLESTON | MO |
| 2025-05-05 | 573-813-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | E PRAIRIE | MO |
| 2025-05-05 | 573-813-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | E PRAIRIE | MO |
| 2025-05-05 | 573-937-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNESVL | MO |
| 2025-05-02 | 573-223-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PIEDMONT | MO |
| 2025-05-02 | 573-633-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SHELBYVL | MO |
| 2025-05-02 | 573-769-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PALMYRA | MO |
| 2025-05-02 | 573-858-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TIMBER | MO |
| 2025-05-02 | 573-991-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MEXICO | MO |
| 2025-05-01 | 573-224-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GREENVILLE | MO |
| 2025-05-01 | 573-512-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FTLENARDWD | MO |
| 2025-05-01 | 573-626-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BOSS | MO |
| 2025-05-01 | 573-656-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | OLNEY | MO |
| 2025-05-01 | 573-662-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | IBERIA | MO |
| 2025-05-01 | 573-707-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DONIPHAN | MO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.