NumberResearchRecent thousands-block assignments
9 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 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 |
|---|---|---|---|---|---|---|---|
| 2024-04-10 | 872-368-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-04-09 | 872-312-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2024-04-09 | 872-312-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2024-04-09 | 872-312-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | CHICGOZN02 | IL |
| 2024-04-03 | 872-360-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-04-03 | 872-360-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-04-01 | 872-360-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN09 | IL |
| 2024-03-27 | 872-217-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2024-03-27 | 872-313-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | CHICGOZN08 | IL |
| 2024-03-27 | 872-364-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | CHICGOZN01 | IL |
| 2024-03-27 | 872-364-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | CHICGOZN01 | IL |
| 2024-03-27 | 872-366-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN03 | IL |
| 2024-03-20 | 872-350-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CHICGOZN06 | IL |
| 2024-03-20 | 872-350-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | CHICGOZN06 | IL |
| 2024-03-20 | 872-360-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN09 | IL |
| 2024-03-20 | 872-829-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN04 | IL |
| 2024-03-18 | 872-829-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | CHICGOZN04 | IL |
| 2024-03-18 | 872-829-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | CHICGOZN04 | IL |
| 2024-03-15 | 872-359-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN10 | IL |
| 2024-03-15 | 872-359-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN10 | IL |
| 2024-03-15 | 872-361-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-03-15 | 872-361-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN05 | IL |
| 2024-03-15 | 872-363-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN05 | IL |
| 2024-03-15 | 872-363-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICGOZN05 | IL |
| 2024-03-15 | 872-363-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | CHICGOZN05 | IL |
| 2024-03-15 | 872-363-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | CHICGOZN05 | IL |
| 2024-03-15 | 872-364-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICGOZN01 | IL |
| 2024-03-12 | 872-312-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHICGOZN02 | IL |
| 2024-03-12 | 872-312-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHICGOZN02 | IL |
| 2024-03-12 | 872-312-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHICGOZN02 | IL |
| 2024-03-12 | 872-312-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHICGOZN02 | IL |
| 2024-03-12 | 872-360-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CHICGOZN09 | IL |
| 2024-03-05 | 872-360-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | CHICGOZN09 | IL |
| 2024-03-01 | 872-360-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-02-29 | 872-306-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICGOZN09 | IL |
| 2024-02-27 | 872-351-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | CHICGOZN01 | IL |
| 2024-02-27 | 872-351-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | CHICGOZN01 | IL |
| 2024-02-20 | 872-374-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-20 | 872-374-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-20 | 872-374-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-20 | 872-374-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-20 | 872-374-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-20 | 872-374-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-20 | 872-374-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-20 | 872-374-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-20 | 872-374-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-20 | 872-374-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | CHICGOZN02 | IL |
| 2024-02-16 | 872-359-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN10 | IL |
| 2024-02-16 | 872-359-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN10 | IL |
| 2024-02-16 | 872-359-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICGOZN10 | 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.