NumberResearchRecent thousands-block assignments
15 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 279
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 |
|---|---|---|---|---|---|---|---|
| 2024-06-12 | 279-966-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LINCOLN | CA |
| 2024-06-11 | 279-259-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | RSVL MAIN | CA |
| 2024-06-11 | 279-259-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | RSVL MAIN | CA |
| 2024-06-05 | 279-258-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | FOLSOM | CA |
| 2024-06-05 | 279-258-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | FOLSOM | CA |
| 2024-06-03 | 279-263-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | RSVL CTHT | CA |
| 2024-05-29 | 279-260-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2024-05-22 | 279-259-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | RSVL MAIN | CA |
| 2024-05-22 | 279-259-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | RSVL MAIN | CA |
| 2024-05-22 | 279-259-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | RSVL MAIN | CA |
| 2024-05-14 | 279-246-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | RIO LINDA | CA |
| 2024-05-14 | 279-262-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SO PLACER | CA |
| 2024-05-13 | 279-261-1XXX | 1000–1999 | Assigned | ASTOUND BROADBAND, LLC - CA | 485E | SCRM NORTH | CA |
| 2024-05-09 | 279-258-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FOLSOM | CA |
| 2024-05-09 | 279-258-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FOLSOM | CA |
| 2024-05-09 | 279-258-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FOLSOM | CA |
| 2024-05-09 | 279-258-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FOLSOM | CA |
| 2024-05-08 | 279-244-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SO PLACER | CA |
| 2024-04-17 | 279-966-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LINCOLN | CA |
| 2024-04-12 | 279-260-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | SCRM MAIN | CA |
| 2024-04-12 | 279-260-8XXX | 8000–8999 | Assigned | NUSO, LLC | 732J | SCRM MAIN | CA |
| 2024-04-09 | 279-260-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SCRM MAIN | CA |
| 2024-04-09 | 279-280-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SCRM NORTH | CA |
| 2024-04-04 | 279-587-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | PLEASATGRV | CA |
| 2024-03-26 | 279-258-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FOLSOM | CA |
| 2024-03-26 | 279-259-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | RSVL MAIN | CA |
| 2024-03-25 | 279-252-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | FAIR OAKS | CA |
| 2024-03-25 | 279-252-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | FAIR OAKS | CA |
| 2024-03-25 | 279-256-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | FOLSOM | CA |
| 2024-03-25 | 279-280-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2024-03-25 | 279-280-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2024-03-25 | 279-280-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2024-03-25 | 279-280-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2024-03-25 | 279-280-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2024-03-19 | 279-280-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SCRM NORTH | CA |
| 2024-03-14 | 279-252-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FAIR OAKS | CA |
| 2024-03-14 | 279-252-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FAIR OAKS | CA |
| 2024-03-14 | 279-256-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | FOLSOM | CA |
| 2024-03-12 | 279-250-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SCRM NORTH | CA |
| 2024-03-06 | 279-253-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RSVL MAIN | CA |
| 2024-03-06 | 279-253-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RSVL MAIN | CA |
| 2024-02-29 | 279-257-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2024-02-29 | 279-257-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2024-02-29 | 279-257-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2024-02-29 | 279-257-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2024-02-29 | 279-257-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2024-02-29 | 279-257-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2024-02-29 | 279-257-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2024-02-29 | 279-257-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2024-02-29 | 279-257-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
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.