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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-01-11 | 279-250-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM NORTH | CA |
| 2024-01-10 | 279-230-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | RSVL MAIN | CA |
| 2024-01-10 | 279-243-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | RSVL MAIN | CA |
| 2024-01-10 | 279-245-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | FOLSOM | CA |
| 2024-01-10 | 279-245-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FOLSOM | CA |
| 2024-01-10 | 279-252-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FAIR OAKS | CA |
| 2024-01-10 | 279-252-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FAIR OAKS | CA |
| 2024-01-10 | 279-253-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | RSVL MAIN | CA |
| 2024-01-08 | 279-244-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SO PLACER | CA |
| 2024-01-05 | 279-249-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | ELK GROVE | CA |
| 2024-01-05 | 279-249-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | ELK GROVE | CA |
| 2024-01-05 | 279-249-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | ELK GROVE | CA |
| 2024-01-04 | 279-245-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | FOLSOM | CA |
| 2023-12-29 | 279-232-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | MICHIGNBAR | CA |
| 2023-12-29 | 279-245-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | FOLSOM | CA |
| 2023-12-29 | 279-245-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | FOLSOM | CA |
| 2023-12-29 | 279-249-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | ELK GROVE | CA |
| 2023-12-29 | 279-249-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | ELK GROVE | CA |
| 2023-12-29 | 279-249-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | ELK GROVE | CA |
| 2023-12-29 | 279-250-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | SCRM NORTH | CA |
| 2023-12-29 | 279-250-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | SCRM NORTH | CA |
| 2023-12-29 | 279-250-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | SCRM NORTH | CA |
| 2023-12-29 | 279-250-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | SCRM NORTH | CA |
| 2023-12-29 | 279-251-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | SCRM MAIN | CA |
| 2023-12-29 | 279-251-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | SCRM MAIN | CA |
| 2023-12-29 | 279-251-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | SCRM MAIN | CA |
| 2023-12-29 | 279-251-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | SCRM MAIN | CA |
| 2023-12-29 | 279-251-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | SCRM MAIN | CA |
| 2023-12-27 | 279-245-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FOLSOM | CA |
| 2023-12-27 | 279-248-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SCRM MAIN | CA |
| 2023-12-27 | 279-248-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SCRM MAIN | CA |
| 2023-12-27 | 279-248-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SCRM MAIN | CA |
| 2023-12-12 | 279-249-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | ELK GROVE | CA |
| 2023-12-11 | 279-218-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SCRM NORTH | CA |
| 2023-12-11 | 279-245-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FOLSOM | CA |
| 2023-12-05 | 279-240-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2023-12-05 | 279-240-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2023-12-05 | 279-240-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2023-12-05 | 279-240-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2023-12-05 | 279-240-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2023-12-05 | 279-249-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ELK GROVE | CA |
| 2023-12-04 | 279-248-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2023-12-04 | 279-248-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2023-12-04 | 279-248-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2023-12-04 | 279-248-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2023-12-01 | 279-229-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2023-12-01 | 279-229-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2023-12-01 | 279-229-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2023-12-01 | 279-229-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2023-12-01 | 279-229-9XXX | 9000–9999 | 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.