NumberResearchRecent thousands-block assignments
13 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 840
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 |
|---|---|---|---|---|---|---|---|
| 2024-08-01 | 840-260-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-08-01 | 840-260-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-08-01 | 840-260-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-08-01 | 840-261-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2024-08-01 | 840-261-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2024-08-01 | 840-261-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2024-07-30 | 840-262-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-30 | 840-262-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-07-22 | 840-261-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | FONTANA | CA |
| 2024-06-21 | 840-284-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2024-06-12 | 840-257-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | COLTON | CA |
| 2024-06-11 | 840-237-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | ONTARIO | CA |
| 2024-06-11 | 840-260-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | POMONA | CA |
| 2024-05-29 | 840-261-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FONTANA | CA |
| 2024-05-23 | 840-249-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MARSHALL | CA |
| 2024-05-22 | 840-260-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2024-05-22 | 840-260-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2024-05-22 | 840-260-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2024-05-22 | 840-260-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | POMONA | CA |
| 2024-05-21 | 840-259-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | POMONA | CA |
| 2024-05-21 | 840-259-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | POMONA | CA |
| 2024-05-14 | 840-253-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CALIMESA | CA |
| 2024-05-10 | 840-250-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-05-10 | 840-250-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-05-10 | 840-250-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-05-10 | 840-250-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-05-09 | 840-259-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-05-09 | 840-259-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-05-09 | 840-259-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-05-09 | 840-259-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-05-09 | 840-259-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-05-09 | 840-259-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-05-09 | 840-259-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-05-09 | 840-259-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-04-29 | 840-256-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | UPLAND | CA |
| 2024-04-29 | 840-256-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | UPLAND | CA |
| 2024-04-23 | 840-256-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UPLAND | CA |
| 2024-04-23 | 840-256-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UPLAND | CA |
| 2024-04-23 | 840-256-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UPLAND | CA |
| 2024-04-15 | 840-258-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HIGHLAND | CA |
| 2024-04-15 | 840-258-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HIGHLAND | CA |
| 2024-04-09 | 840-255-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2024-04-09 | 840-255-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2024-04-09 | 840-255-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2024-04-09 | 840-255-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | 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.