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 |
|---|---|---|---|---|---|---|---|
| 2024-04-09 | 840-255-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | S BERNDINO | CA |
| 2024-04-09 | 840-257-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | COLTON | CA |
| 2024-04-09 | 840-257-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | COLTON | CA |
| 2024-04-09 | 840-257-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | COLTON | CA |
| 2024-04-09 | 840-257-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | COLTON | CA |
| 2024-04-08 | 840-237-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | ONTARIO | CA |
| 2024-04-02 | 840-251-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | REDLANDS | CA |
| 2024-04-02 | 840-255-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | S BERNDINO | CA |
| 2024-03-28 | 840-256-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | UPLAND | CA |
| 2024-03-28 | 840-256-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | UPLAND | CA |
| 2024-03-28 | 840-257-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | COLTON | CA |
| 2024-03-25 | 840-284-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2024-03-25 | 840-284-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHINO | CA |
| 2024-03-18 | 840-249-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARSHALL | CA |
| 2024-03-18 | 840-254-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | RIALTO | CA |
| 2024-03-18 | 840-254-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | RIALTO | CA |
| 2024-03-18 | 840-254-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | RIALTO | CA |
| 2024-03-18 | 840-255-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | S BERNDINO | CA |
| 2024-03-18 | 840-255-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | S BERNDINO | CA |
| 2024-03-18 | 840-255-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | S BERNDINO | CA |
| 2024-03-18 | 840-255-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | S BERNDINO | CA |
| 2024-03-06 | 840-223-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CALIMESA | CA |
| 2024-03-06 | 840-250-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-03-06 | 840-250-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-03-06 | 840-250-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROWHEAD | CA |
| 2024-03-06 | 840-253-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CALIMESA | CA |
| 2024-03-05 | 840-500-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | BIGBEAR CY | CA |
| 2024-02-29 | 840-246-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ETIWANDA | CA |
| 2024-02-29 | 840-246-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ETIWANDA | CA |
| 2024-02-16 | 840-243-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-02-16 | 840-243-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-02-16 | 840-243-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-02-16 | 840-243-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | POMONA | CA |
| 2024-02-14 | 840-244-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DIAMONDBAR | CA |
| 2024-02-14 | 840-244-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DIAMONDBAR | CA |
| 2024-02-14 | 840-244-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DIAMONDBAR | CA |
| 2024-02-13 | 840-251-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2024-02-13 | 840-251-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2024-02-13 | 840-251-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2024-02-13 | 840-251-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2024-02-13 | 840-251-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDLANDS | CA |
| 2024-02-09 | 840-251-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | REDLANDS | CA |
| 2024-02-09 | 840-252-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | MENTONE | CA |
| 2024-01-30 | 840-246-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | ETIWANDA | CA |
| 2024-01-30 | 840-246-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | ETIWANDA | CA |
| 2024-01-30 | 840-246-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | ETIWANDA | CA |
| 2024-01-29 | 840-243-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | POMONA | CA |
| 2024-01-29 | 840-243-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | POMONA | CA |
| 2024-01-25 | 840-236-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | CLAREMONT | CA |
| 2024-01-25 | 840-236-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | CLAREMONT | 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.