NumberResearchRecent thousands-block assignments
9 blocks assigned in January 2026 · 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, January 2026 — NPA 573
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-01-30 | 573-274-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | POTOSI | MO |
| 2026-01-30 | 573-850-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | POPLAR BLF | MO |
| 2026-01-13 | 573-451-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ST ROBERT | MO |
| 2026-01-13 | 573-679-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BOURBON | MO |
| 2026-01-13 | 573-689-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BUNKER | MO |
| 2026-01-13 | 573-697-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BELLEVIEW | MO |
| 2026-01-13 | 573-834-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BERGER | MO |
| 2026-01-12 | 573-414-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DEXTER | MO |
| 2026-01-12 | 573-543-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | ST MARYS | 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.