NumberResearchRecent thousands-block assignments
16 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 385
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 |
|---|---|---|---|---|---|---|---|
| 2024-06-14 | 385-262-0XXX | 0000–0999 | Assigned | ONVOY, LLC - UT | 871E | KAYSVILLE | UT |
| 2024-06-14 | 385-412-2XXX | 2000–2999 | Assigned | ONVOY, LLC - UT | 871E | PROVO | UT |
| 2024-06-14 | 385-527-6XXX | 6000–6999 | Assigned | ONVOY, LLC - UT | 871E | PAYSON | UT |
| 2024-06-14 | 385-527-7XXX | 7000–7999 | Assigned | ONVOY, LLC - UT | 871E | PAYSON | UT |
| 2024-06-14 | 385-581-0XXX | 0000–0999 | Assigned | NUSO, LLC | 732J | SALT LAKE | UT |
| 2024-06-14 | 385-581-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | SALT LAKE | UT |
| 2024-06-12 | 385-581-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SALT LAKE | UT |
| 2024-06-11 | 385-361-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MIDVALE | UT |
| 2024-06-11 | 385-570-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MIDVALE | UT |
| 2024-06-11 | 385-570-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MIDVALE | UT |
| 2024-06-11 | 385-570-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MIDVALE | UT |
| 2024-06-11 | 385-580-1XXX | 1000–1999 | Assigned | ONVOY, LLC - UT | 871E | MURRAY | UT |
| 2024-06-05 | 385-550-8XXX | 8000–8999 | Assigned | ONVOY, LLC - UT | 871E | BOUNTIFUL | UT |
| 2024-05-30 | 385-550-0XXX | 0000–0999 | Assigned | ONVOY, LLC - UT | 871E | BOUNTIFUL | UT |
| 2024-05-29 | 385-867-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SALT LAKE | UT |
| 2024-05-20 | 385-550-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | BOUNTIFUL | UT |
| 2024-05-20 | 385-550-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | BOUNTIFUL | UT |
| 2024-05-15 | 385-574-0XXX | 0000–0999 | Assigned | ONVOY, LLC - UT | 871E | LEHI | UT |
| 2024-05-15 | 385-580-0XXX | 0000–0999 | Assigned | ONVOY, LLC - UT | 871E | MURRAY | UT |
| 2024-05-15 | 385-866-6XXX | 6000–6999 | Assigned | ONVOY, LLC - UT | 871E | PROVO | UT |
| 2024-05-14 | 385-874-5XXX | 5000–5999 | Assigned | ONVOY, LLC - UT | 871E | FARMINGTON | UT |
| 2024-05-13 | 385-561-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OGDEN | UT |
| 2024-05-13 | 385-570-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MIDVALE | UT |
| 2024-05-13 | 385-578-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2024-05-13 | 385-578-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2024-05-13 | 385-578-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2024-05-13 | 385-578-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2024-05-13 | 385-578-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2024-05-13 | 385-578-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2024-05-13 | 385-578-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2024-05-01 | 385-576-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-05-01 | 385-576-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-05-01 | 385-576-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-05-01 | 385-576-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-05-01 | 385-576-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-05-01 | 385-576-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-05-01 | 385-576-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-05-01 | 385-576-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-05-01 | 385-576-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-05-01 | 385-580-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2024-04-26 | 385-579-0XXX | 0000–0999 | Assigned | ONVOY, LLC - UT | 871E | AMERCNFORK | UT |
| 2024-04-23 | 385-579-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AMERCNFORK | UT |
| 2024-04-23 | 385-579-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AMERCNFORK | UT |
| 2024-04-22 | 385-565-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AMERCNFORK | UT |
| 2024-04-22 | 385-565-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AMERCNFORK | UT |
| 2024-04-22 | 385-565-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AMERCNFORK | UT |
| 2024-04-19 | 385-578-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | SALT LAKE | UT |
| 2024-04-19 | 385-578-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | SALT LAKE | UT |
| 2024-04-11 | 385-543-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SPRINGVL | UT |
| 2024-04-11 | 385-576-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MURRAY | UT |
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.