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 317
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-02-17 | 317-436-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FISHERS | IN |
| 2026-02-17 | 317-763-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WESTFIELD | IN |
| 2025-12-16 | 317-483-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MOORESVL | IN |
| 2025-10-31 | 317-723-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | OAKLANDON | IN |
| 2025-09-11 | 317-245-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ACTON | IN |
| 2025-09-11 | 317-456-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BROWNSBURG | IN |
| 2025-08-05 | 317-754-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PLAINFIELD | IN |
| 2025-08-05 | 317-942-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ZIONSVILLE | IN |
| 2025-07-03 | 317-530-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WHITELAND | IN |
| 2025-03-10 | 317-623-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEWPALSTIN | IN |
| 2025-03-10 | 317-836-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SHERIDAN | IN |
| 2025-01-14 | 317-245-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ACTON | IN |
| 2024-12-03 | 317-288-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FISHERS | IN |
| 2024-07-16 | 317-386-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DANVILLE | IN |
| 2024-07-10 | 317-645-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NOBLESVL | IN |
| 2023-10-17 | 317-598-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FISHERS | IN |
| 2022-11-16 | 317-604-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SHELBYVL | IN |
| 2021-06-18 | 317-707-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PLAINFIELD | IN |
| 2021-03-31 | 317-448-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GREENFIELD | IN |
| 2020-12-21 | 317-534-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GREENWOOD | IN |
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.