NumberResearchRecent thousands-block assignments
0 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, all time — NPA 227
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-11-06 | 227-229-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN4 | MD |
| 2024-11-06 | 227-249-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN4 | MD |
| 2024-11-06 | 227-255-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN5 | MD |
| 2024-11-06 | 227-255-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN5 | MD |
| 2024-11-06 | 227-255-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN5 | MD |
| 2024-11-06 | 227-727-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN6 | MD |
| 2024-11-06 | 227-727-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN6 | MD |
| 2024-11-06 | 227-727-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN6 | MD |
| 2024-11-06 | 227-727-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN6 | MD |
| 2024-11-06 | 227-727-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN6 | MD |
| 2024-11-06 | 227-770-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNGTNZN11 | MD |
| 2024-11-06 | 227-770-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNGTNZN11 | MD |
| 2024-11-06 | 227-770-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNGTNZN11 | MD |
| 2024-11-06 | 227-772-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN4 | MD |
| 2024-11-06 | 227-772-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN4 | MD |
| 2024-11-06 | 227-800-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FREDERICK | MD |
| 2024-11-06 | 227-800-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FREDERICK | MD |
| 2024-11-06 | 227-800-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FREDERICK | MD |
| 2024-11-06 | 227-800-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FREDERICK | MD |
| 2024-11-06 | 227-800-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FREDERICK | MD |
| 2024-11-06 | 227-998-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN2 | MD |
| 2024-11-06 | 227-998-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN2 | MD |
| 2024-11-06 | 227-998-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSHNGTNZN2 | MD |
| 2024-06-11 | 227-227-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GAITHERSBG | MD |
| 2024-06-11 | 227-227-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GAITHERSBG | MD |
| 2024-06-11 | 227-227-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GAITHERSBG | MD |
| 2024-04-23 | 227-722-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WALDORF | MD |
| 2024-04-23 | 227-722-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WALDORF | MD |
| 2023-12-18 | 227-222-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNGTNZN16 | MD |
| 2023-12-18 | 227-222-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNGTNZN16 | MD |
| 2023-12-18 | 227-999-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNGTNZN10 | MD |
| 2023-12-18 | 227-999-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNGTNZN10 | MD |
| 2023-12-15 | 227-213-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ASHTON236 | MD |
| 2023-12-15 | 227-219-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ASHTON236 | MD |
| 2023-12-15 | 227-777-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ASHTON238 | MD |
| 2023-12-15 | 227-777-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ASHTON238 | MD |
| 2023-12-15 | 227-888-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNG238Z15 | MD |
| 2023-12-15 | 227-888-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSNG238Z15 | MD |
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.