NumberResearchRecent thousands-block assignments
22 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 224
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-09-03 | 224-615-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-08-29 | 224-613-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALGONQUIN | IL |
| 2024-08-29 | 224-613-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALGONQUIN | IL |
| 2024-08-29 | 224-613-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALGONQUIN | IL |
| 2024-08-29 | 224-617-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALGONQUIN | IL |
| 2024-08-28 | 224-933-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | ROUND LAKE | IL |
| 2024-08-22 | 224-451-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BARRINGTON | IL |
| 2024-08-22 | 224-502-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ROUND LAKE | IL |
| 2024-08-22 | 224-615-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLIGTNHTS | IL |
| 2024-08-21 | 224-614-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-08-21 | 224-614-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-08-21 | 224-614-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-08-21 | 224-614-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-08-14 | 224-584-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | WHEELING | IL |
| 2024-08-14 | 224-584-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | WHEELING | IL |
| 2024-08-14 | 224-593-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GLENVIEW | IL |
| 2024-08-14 | 224-603-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ANTIOCH | IL |
| 2024-08-14 | 224-616-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | GLENVIEW | IL |
| 2024-08-14 | 224-764-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-08-14 | 224-764-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-08-09 | 224-927-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NORTHBROOK | IL |
| 2024-08-09 | 224-977-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NORTHBROOK | IL |
| 2024-07-31 | 224-224-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DESPLAINES | IL |
| 2024-07-31 | 224-224-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DESPLAINES | IL |
| 2024-07-31 | 224-224-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DESPLAINES | IL |
| 2024-07-31 | 224-549-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DUNDEE | IL |
| 2024-07-31 | 224-604-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | ELGIN | IL |
| 2024-07-23 | 224-248-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-07-23 | 224-349-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-07-23 | 224-562-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-07-23 | 224-562-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-07-23 | 224-855-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-07-23 | 224-855-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-07-23 | 224-855-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-07-23 | 224-855-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2024-07-18 | 224-576-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | WAUKEGAN | IL |
| 2024-07-16 | 224-340-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DESPLAINES | IL |
| 2024-07-16 | 224-519-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DESPLAINES | IL |
| 2024-07-16 | 224-519-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DESPLAINES | IL |
| 2024-07-16 | 224-519-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DESPLAINES | IL |
| 2024-07-16 | 224-598-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DESPLAINES | IL |
| 2024-07-16 | 224-598-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DESPLAINES | IL |
| 2024-07-16 | 224-927-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NORTHBROOK | IL |
| 2024-07-05 | 224-344-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | WILMETTE | IL |
| 2024-07-05 | 224-371-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | GRAYSLAKE | IL |
| 2024-07-05 | 224-379-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | PARK RIDGE | IL |
| 2024-07-05 | 224-557-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | PALATINE | IL |
| 2024-07-05 | 224-557-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | PALATINE | IL |
| 2024-07-05 | 224-604-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | ELGIN | IL |
| 2024-07-05 | 224-608-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NORTHBROOK | IL |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.