NumberResearchRecent thousands-block assignments
16 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, last 30 days — NPA 563
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 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 |
| 2025-04-21 | 563-895-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVENPORT | IA |
| 2025-04-21 | 563-895-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAVENPORT | IA |
| 2025-04-16 | 563-346-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2025-04-16 | 563-526-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2025-04-16 | 563-900-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2025-04-11 | 563-895-7XXX | 7000–7999 | Assigned | AIRUS, INC - IA | 423H | DAVENPORT | IA |
| 2025-04-10 | 563-514-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DAVENPORT | IA |
| 2025-04-04 | 563-223-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ELDRIDGE | IA |
| 2025-03-31 | 563-269-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2025-03-31 | 563-772-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2025-03-31 | 563-772-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CASCADE | IA |
| 2025-03-28 | 563-517-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | DECORAH | IA |
| 2025-03-28 | 563-518-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | WEST UNION | IA |
| 2025-03-25 | 563-201-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | DYERSVILLE | IA |
| 2025-03-24 | 563-329-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | MCGREGOR | IA |
| 2025-03-24 | 563-540-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | WAUKON | IA |
| 2025-03-21 | 563-226-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-226-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-226-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-226-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-226-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-226-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-226-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-226-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-226-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-226-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-229-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-234-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-234-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-234-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-234-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-234-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | IA |
| 2025-03-21 | 563-234-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | DE WITT | 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.