NumberResearchRecent thousands-block assignments
9 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 872
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 |
|---|---|---|---|---|---|---|---|
| 2024-12-19 | 872-379-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-12-19 | 872-379-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-12-19 | 872-379-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-12-19 | 872-379-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-12-12 | 872-224-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN06 | IL |
| 2024-12-12 | 872-224-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN06 | IL |
| 2024-12-12 | 872-350-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN06 | IL |
| 2024-12-02 | 872-838-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-12-02 | 872-838-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-12-02 | 872-838-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-12-02 | 872-838-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-11-19 | 872-375-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | CHICGOZN04 | IL |
| 2024-11-19 | 872-376-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2024-11-19 | 872-376-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2024-11-19 | 872-376-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2024-11-08 | 872-375-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN04 | IL |
| 2024-11-08 | 872-588-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN04 | IL |
| 2024-11-07 | 872-349-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN07 | IL |
| 2024-11-07 | 872-375-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN04 | IL |
| 2024-11-07 | 872-376-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2024-10-30 | 872-378-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-10-30 | 872-378-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-10-30 | 872-378-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-10-30 | 872-378-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-10-22 | 872-377-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-10-22 | 872-377-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-10-22 | 872-377-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-10-21 | 872-838-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-10-21 | 872-838-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-10-15 | 872-376-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | CHICGOZN02 | IL |
| 2024-10-14 | 872-340-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN04 | IL |
| 2024-09-18 | 872-262-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-09-18 | 872-371-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-09-18 | 872-371-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-09-17 | 872-872-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-17 | 872-872-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-17 | 872-872-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-17 | 872-872-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-17 | 872-872-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-17 | 872-872-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-17 | 872-872-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-17 | 872-872-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-17 | 872-872-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-17 | 872-872-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-09-11 | 872-363-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-09-11 | 872-363-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-09-10 | 872-377-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-09-10 | 872-377-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-09-10 | 872-377-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-09-10 | 872-377-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
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.