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 |
|---|---|---|---|---|---|---|---|
| 2022-04-25 | 563-203-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | IA |
| 2022-04-25 | 563-400-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | IA |
| 2022-04-25 | 563-400-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | IA |
| 2022-03-23 | 563-477-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CLINTON | IA |
| 2022-03-23 | 563-842-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HOLY CROSS | IA |
| 2022-03-14 | 563-266-5XXX | 5000–5999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BERNARD | IA |
| 2022-03-14 | 563-346-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DAVENPORT | IA |
| 2022-03-14 | 563-465-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | FARLEY | IA |
| 2022-02-21 | 563-478-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NEW VIENNA | IA |
| 2022-02-21 | 563-624-5XXX | 5000–5999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | EPWORTH | IA |
| 2022-02-18 | 563-286-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2022-02-18 | 563-286-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2022-02-18 | 563-286-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | DAVENPORT | IA |
| 2022-02-18 | 563-837-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | FREDECKSBG | IA |
| 2022-02-15 | 563-764-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | OSSIAN | IA |
| 2022-02-14 | 563-400-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | IA |
| 2022-02-14 | 563-400-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | IA |
| 2022-02-14 | 563-400-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CRESCO | IA |
| 2022-02-14 | 563-837-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | FREDECKSBG | IA |
| 2022-02-14 | 563-972-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WADENA | IA |
| 2022-02-11 | 563-342-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | RYAN | IA |
| 2022-02-11 | 563-466-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | VOLGA | IA |
| 2022-02-11 | 563-637-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MAYNARD | IA |
| 2022-02-10 | 563-446-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DELHI | IA |
| 2022-02-10 | 563-746-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GREELEY | IA |
| 2022-02-09 | 563-683-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NEW ALBIN | IA |
| 2022-02-09 | 563-822-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MANCHESTER | IA |
| 2022-02-08 | 563-454-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WYOMING | IA |
| 2022-02-07 | 563-273-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ONSLOW | IA |
| 2022-02-07 | 563-337-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | FAYETTE | IA |
| 2022-02-07 | 563-725-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ELGIN | IA |
| 2022-02-02 | 563-477-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | CLINTON | IA |
| 2022-02-02 | 563-477-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | CLINTON | IA |
| 2022-02-01 | 563-778-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ST LUCAS | IA |
| 2022-01-26 | 563-351-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | DURANT | IA |
| 2022-01-25 | 563-313-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | CRESCO | IA |
| 2022-01-13 | 563-453-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ELKADER | IA |
| 2022-01-13 | 563-832-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GARNAVILLO | IA |
| 2022-01-04 | 563-307-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DUBUQUE | IA |
| 2022-01-04 | 563-307-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DUBUQUE | IA |
| 2022-01-04 | 563-307-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DUBUQUE | IA |
| 2022-01-04 | 563-307-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DUBUQUE | IA |
| 2022-01-04 | 563-307-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DUBUQUE | IA |
| 2021-12-29 | 563-346-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DAVENPORT | IA |
| 2021-12-29 | 563-482-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | LAWLER | IA |
| 2021-12-22 | 563-348-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DUBUQUE | IA |
| 2021-12-22 | 563-348-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DUBUQUE | IA |
| 2021-12-09 | 563-253-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | TIPTON | IA |
| 2021-12-09 | 563-331-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | TIPTON | IA |
| 2021-12-09 | 563-331-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | TIPTON | 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.