NumberResearchRecent thousands-block assignments
49 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 464
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-11-07 | 464-250-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | BLUEISLAND | IL |
| 2024-10-22 | 464-221-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BERWYN | IL |
| 2024-10-22 | 464-221-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BERWYN | IL |
| 2024-10-22 | 464-221-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BERWYN | IL |
| 2024-10-14 | 464-252-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | LA GRANGE | IL |
| 2024-10-14 | 464-252-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | LA GRANGE | IL |
| 2024-10-01 | 464-999-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | THORNTON | IL |
| 2024-09-24 | 464-247-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LA GRANGE | IL |
| 2024-09-24 | 464-247-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LA GRANGE | IL |
| 2024-09-24 | 464-247-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LA GRANGE | IL |
| 2024-09-24 | 464-248-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2024-09-24 | 464-248-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2024-09-24 | 464-248-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2024-09-24 | 464-252-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LA GRANGE | IL |
| 2024-09-19 | 464-251-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICAGOHTS | IL |
| 2024-09-11 | 464-266-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | CICERO | IL |
| 2024-08-29 | 464-250-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BLUEISLAND | IL |
| 2024-08-29 | 464-250-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BLUEISLAND | IL |
| 2024-08-29 | 464-250-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BLUEISLAND | IL |
| 2024-08-14 | 464-249-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2024-08-09 | 464-248-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2024-08-09 | 464-248-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2024-08-09 | 464-248-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2024-08-07 | 464-247-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LA GRANGE | IL |
| 2024-07-30 | 464-249-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICAGOHTS | IL |
| 2024-07-30 | 464-249-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICAGOHTS | IL |
| 2024-07-19 | 464-249-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICAGOHTS | IL |
| 2024-07-19 | 464-249-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CHICAGOHTS | IL |
| 2024-07-18 | 464-250-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BLUEISLAND | IL |
| 2024-07-05 | 464-220-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | CRETE | IL |
| 2024-07-05 | 464-237-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | HARVEY | IL |
| 2024-07-05 | 464-245-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | CICERO | IL |
| 2024-07-05 | 464-247-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | LA GRANGE | IL |
| 2024-07-05 | 464-250-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | BLUEISLAND | IL |
| 2024-07-05 | 464-250-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | BLUEISLAND | IL |
| 2024-07-05 | 464-250-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | BLUEISLAND | IL |
| 2024-07-05 | 464-250-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | BLUEISLAND | IL |
| 2024-06-11 | 464-249-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | CHICAGOHTS | IL |
| 2024-06-07 | 464-240-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BELLWOOD | IL |
| 2024-06-07 | 464-240-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BELLWOOD | IL |
| 2024-06-06 | 464-243-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | ORLAND | IL |
| 2024-06-06 | 464-245-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | CICERO | IL |
| 2024-06-06 | 464-245-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | CICERO | IL |
| 2024-06-05 | 464-227-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | OAK LAWN | IL |
| 2024-06-05 | 464-227-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | OAK LAWN | IL |
| 2024-06-05 | 464-227-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | OAK LAWN | IL |
| 2024-06-05 | 464-227-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | OAK LAWN | IL |
| 2024-06-04 | 464-245-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CICERO | IL |
| 2024-06-04 | 464-245-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CICERO | IL |
| 2024-06-04 | 464-245-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CICERO | 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.