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 |
|---|---|---|---|---|---|---|---|
| 2024-06-05 | 872-361-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-06-05 | 872-371-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-06-05 | 872-371-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-06-04 | 872-368-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-06-04 | 872-368-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-06-04 | 872-368-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-06-04 | 872-368-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-05-29 | 872-312-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2024-05-29 | 872-312-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2024-05-29 | 872-364-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | CHICGOZN01 | IL |
| 2024-05-29 | 872-369-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN04 | IL |
| 2024-05-29 | 872-369-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN04 | IL |
| 2024-05-29 | 872-370-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2024-05-29 | 872-370-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2024-05-23 | 872-366-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-05-23 | 872-366-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-05-23 | 872-366-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-05-23 | 872-366-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-05-21 | 872-359-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN10 | IL |
| 2024-05-21 | 872-359-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN10 | IL |
| 2024-05-21 | 872-359-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN10 | IL |
| 2024-05-21 | 872-359-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN10 | IL |
| 2024-05-21 | 872-359-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN10 | IL |
| 2024-05-21 | 872-364-2XXX | 2000–2999 | Assigned | NUSO, LLC | 478J | CHICGOZN01 | IL |
| 2024-05-14 | 872-369-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN04 | IL |
| 2024-05-10 | 872-361-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-05-10 | 872-361-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-05-10 | 872-361-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-05-08 | 872-369-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN04 | IL |
| 2024-05-08 | 872-369-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN04 | IL |
| 2024-05-08 | 872-369-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN04 | IL |
| 2024-05-08 | 872-369-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN04 | IL |
| 2024-05-07 | 872-366-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN03 | IL |
| 2024-05-03 | 872-842-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN11 | IL |
| 2024-05-02 | 872-354-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN08 | IL |
| 2024-05-02 | 872-354-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN08 | IL |
| 2024-04-18 | 872-366-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-04-18 | 872-366-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN03 | IL |
| 2024-04-17 | 872-350-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-04-17 | 872-350-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-04-17 | 872-354-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2024-04-11 | 872-369-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN04 | IL |
| 2024-04-11 | 872-369-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN04 | IL |
| 2024-04-10 | 872-360-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-04-10 | 872-360-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-04-10 | 872-360-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-04-10 | 872-368-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-04-10 | 872-368-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-04-10 | 872-368-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-04-10 | 872-368-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 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.