NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-07-16 | 931-345-6XXX | 6000–6999 | Assigned | FRACTEL, LLC | 965H | SPARTA | TN |
| 2020-07-16 | 931-465-8XXX | 8000–8999 | Assigned | FRACTEL, LLC | 965H | WINCHESTER | TN |
| 2020-07-16 | 931-500-0XXX | 0000–0999 | Assigned | FRACTEL, LLC | 965H | SUMMERTOWN | TN |
| 2020-07-16 | 931-500-5XXX | 5000–5999 | Assigned | FRACTEL, LLC | 965H | SUMMERTOWN | TN |
| 2020-07-16 | 931-977-7XXX | 7000–7999 | Assigned | FRACTEL, LLC | 965H | CLIFTON | TN |
| 2020-07-09 | 931-234-5XXX | 5000–5999 | Assigned | FRACTEL, LLC | 965H | OLD ZION | TN |
| 2020-07-09 | 931-348-6XXX | 6000–6999 | Assigned | FRACTEL, LLC | 965H | ERIN | TN |
| 2020-07-09 | 931-362-8XXX | 8000–8999 | Assigned | FRACTEL, LLC | 965H | FREDONIA | TN |
| 2020-07-09 | 931-600-0XXX | 0000–0999 | Assigned | FRACTEL, LLC | 965H | COLLINWOOD | TN |
| 2019-11-29 | 931-888-2XXX | 2000–2999 | Assigned | FRACTEL, LLC | 965H | WAVERLY | TN |
| 2019-11-29 | 931-888-4XXX | 4000–4999 | Assigned | FRACTEL, LLC | 965H | WAVERLY | TN |
| 2019-11-29 | 931-888-5XXX | 5000–5999 | Assigned | FRACTEL, LLC | 965H | WAVERLY | TN |
| 2019-11-29 | 931-888-7XXX | 7000–7999 | Assigned | FRACTEL, LLC | 965H | WAVERLY | TN |
| 2019-04-09 | 931-333-3XXX | 3000–3999 | Assigned | FRACTEL, LLC | 965H | TRACY CITY | TN |
| 2019-01-23 | 931-777-7XXX | 7000–7999 | Assigned | FRACTEL, LLC | 965H | COLUMBIA | TN |
| 2019-01-21 | 931-999-9XXX | 9000–9999 | Assigned | FRACTEL, LLC | 965H | CLARKSVL | TN |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.