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 475
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-03-05 | 475-353-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FAIRFIELD | CT |
| 2026-02-19 | 475-399-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | STAMFORD | CT |
| 2026-01-13 | 475-410-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WOODBURY | CT |
| 2026-01-13 | 475-476-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BRIDGEPORT | CT |
| 2026-01-12 | 475-447-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BYRAM | CT |
| 2026-01-12 | 475-489-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NORWALK | CT |
| 2025-09-17 | 475-369-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HUNTINGTON | CT |
| 2025-08-06 | 475-317-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEW HAVEN | CT |
| 2025-01-15 | 475-747-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NORWALK | CT |
| 2024-12-03 | 475-314-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HUNTINGTON | CT |
| 2024-07-16 | 475-350-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | STAMFORD | CT |
| 2024-03-25 | 475-463-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SEYMOUR | CT |
| 2022-09-06 | 475-277-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WILTON | CT |
| 2022-09-06 | 475-323-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEWTOWN | CT |
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.