NumberResearchRecent thousands-block assignments
3,617 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 10/17/2026
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
New assignments by month
Oct 2026
Sep 2026
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Apr 2026
Mar 2026
Feb 2026
Jan 2026
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Nov 2025
Quick find in this area code:
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-02-16 | 501-531-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | HOTSPRINGS | AR |
| 2024-02-16 | 501-532-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | JESSIEVL | AR |
| 2024-02-16 | 501-536-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CONWAY | AR |
| 2024-02-16 | 501-549-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PALARM | AR |
| 2024-02-16 | 501-564-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SYVNHLSHWD | AR |
| 2024-02-16 | 501-566-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | JONESMILLS | AR |
| 2024-02-16 | 501-770-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WRIGHTSVL | AR |
| 2024-02-16 | 501-790-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | PARON | AR |
| 2024-02-16 | 501-832-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GREERSFRRY | AR |
| 2024-02-16 | 501-942-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SCOTT | AR |
| 2024-02-16 | 502-900-0XXX | 0000–0999 | Assigned | POWERTEL KENTUCKY LICENSES, INC. | 365C | FRANKFORT | KY |
| 2024-02-16 | 517-314-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | JACKSON | MI |
| 2024-02-16 | 517-344-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | JACKSON | MI |
| 2024-02-16 | 518-680-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | GLENSFALLS | NY |
| 2024-02-16 | 520-598-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2024-02-16 | 520-701-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2024-02-16 | 520-701-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2024-02-16 | 520-701-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2024-02-16 | 531-261-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WEEPINGWTR | NE |
| 2024-02-16 | 531-302-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TECUMSEH | NE |
| 2024-02-16 | 531-312-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TAMORA | NE |
| 2024-02-16 | 531-318-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WILBER | NE |
| 2024-02-16 | 531-327-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WESTERN | NE |
| 2024-02-16 | 531-353-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WAHOO | NE |
| 2024-02-16 | 531-455-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TALMAGE | NE |
| 2024-02-16 | 531-459-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | UTICA | NE |
| 2024-02-16 | 551-390-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NJ | 637C | PARK RIDGE | NJ |
| 2024-02-16 | 562-721-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2024-02-16 | 562-721-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2024-02-16 | 562-721-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2024-02-16 | 562-721-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2024-02-16 | 562-721-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2024-02-16 | 562-721-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2024-02-16 | 562-727-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2024-02-16 | 562-727-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2024-02-16 | 562-727-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2024-02-16 | 564-237-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | VANCOUVER | WA |
| 2024-02-16 | 564-258-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VANCOUVER | WA |
| 2024-02-16 | 571-381-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 571-381-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 571-381-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 571-381-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 571-381-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 571-381-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 571-381-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 571-381-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 571-381-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 571-381-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WSNGTNZN08 | VA |
| 2024-02-16 | 574-397-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SOUTH BEND | IN |
| 2024-02-16 | 586-926-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | WASHINGTON | MI |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 10/17/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.