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 563
New assignments by month
Sep 2026
Aug 2026
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Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-02-20 | 563-594-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DAVENPORT | IA |
| 2025-09-22 | 563-444-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ATALISSA | IA |
| 2025-06-10 | 563-233-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SUMNER | IA |
| 2025-05-07 | 563-877-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EARLVILLE | IA |
| 2025-05-05 | 563-516-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ELKADER | IA |
| 2025-05-05 | 563-605-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | POSTVILLE | IA |
| 2025-05-05 | 563-927-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MANCHESTER | IA |
| 2025-05-02 | 563-220-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SABULA | IA |
| 2025-05-02 | 563-289-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LE CLAIRE | IA |
| 2025-05-02 | 563-446-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DELHI | IA |
| 2025-04-29 | 563-223-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ELDRIDGE | IA |
| 2025-04-29 | 563-466-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | VOLGA | IA |
| 2025-04-29 | 563-772-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CASCADE | IA |
| 2025-04-28 | 563-266-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BERNARD | IA |
| 2025-04-28 | 563-303-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FAYETTE | IA |
| 2025-04-28 | 563-330-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MONONA | IA |
| 2025-04-28 | 563-338-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HOPKINTON | IA |
| 2025-04-28 | 563-626-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HARPESFRRY | IA |
| 2025-04-10 | 563-514-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DAVENPORT | IA |
| 2025-03-18 | 563-284-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WALCOTT | IA |
| 2025-03-18 | 563-518-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WEST UNION | IA |
| 2025-01-15 | 563-277-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DECORAH | IA |
| 2024-03-27 | 563-554-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MUSCATINE | IA |
| 2021-04-30 | 563-844-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DAVENPORT | IA |
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.