NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/23/2026
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 931
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 |
|---|---|---|---|---|---|---|---|
| 2025-04-22 | 931-440-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2025-04-22 | 931-440-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2025-04-22 | 931-440-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2025-01-28 | 931-440-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2025-01-28 | 931-440-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2025-01-28 | 931-614-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2024-11-15 | 931-253-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WAYNESBORO | TN |
| 2024-11-15 | 931-293-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CORNERSVL | TN |
| 2024-11-15 | 931-370-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NEWJHNSNVL | TN |
| 2024-11-15 | 931-391-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LINDEN | TN |
| 2024-11-15 | 931-593-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LOBELVILLE | TN |
| 2024-11-15 | 931-600-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | COLLINWOOD | TN |
| 2024-11-15 | 931-977-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLIFTON | TN |
| 2024-04-18 | 931-420-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MONTEREY | TN |
| 2024-04-18 | 931-428-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SPARTA | TN |
| 2024-02-19 | 931-344-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PLEASANTHL | TN |
| 2024-02-19 | 931-356-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MCMINNVL | TN |
| 2024-02-19 | 931-742-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TANSI | TN |
| 2024-02-19 | 931-921-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CROSSVILLE | TN |
| 2023-11-08 | 931-360-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2023-11-08 | 931-360-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2023-11-08 | 931-377-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2023-11-08 | 931-377-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2023-11-08 | 931-377-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2023-05-15 | 931-222-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TULLAHOMA | TN |
| 2023-05-15 | 931-225-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SHELBYVL | TN |
| 2023-05-15 | 931-227-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FAYETTEVL | TN |
| 2023-05-15 | 931-229-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LYNCHBURG | TN |
| 2023-05-15 | 931-326-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PALMYRA | TN |
| 2023-05-15 | 931-327-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WINCHESTER | TN |
| 2023-05-15 | 931-350-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | COLUMBIA | TN |
| 2023-05-15 | 931-355-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SOOAKGROVE | TN |
| 2023-05-15 | 931-358-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANGO | TN |
| 2023-05-15 | 931-360-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLARKSVL | TN |
| 2023-05-15 | 931-365-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HUNTLAND | TN |
| 2023-05-15 | 931-376-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BLANCHE | TN |
| 2023-05-15 | 931-382-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HAMPSHIRE | TN |
| 2023-05-15 | 931-390-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CUNNINGHAM | TN |
| 2023-05-15 | 931-399-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ELKTON | TN |
| 2023-05-15 | 931-412-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WAVERLY | TN |
| 2023-05-15 | 931-422-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LEWISBURG | TN |
| 2023-05-15 | 931-426-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DOVER | TN |
| 2023-05-15 | 931-442-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANTA FE | TN |
| 2023-05-15 | 931-447-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PULASKI | TN |
| 2023-05-15 | 931-451-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SPRINGHILL | TN |
| 2023-05-15 | 931-466-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MCEWEN | TN |
| 2023-05-15 | 931-500-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SUMMERTOWN | TN |
| 2023-05-15 | 931-567-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CULLEOKA | TN |
| 2023-05-15 | 931-630-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FREDONIA | TN |
| 2023-05-15 | 931-633-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LYLES | TN |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.