NumberResearchRecent thousands-block assignments
34 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 442
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 |
|---|---|---|---|---|---|---|---|
| 2023-06-15 | 442-405-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL ADLN | CA |
| 2023-06-15 | 442-406-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-15 | 442-406-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-15 | 442-406-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-15 | 442-406-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-15 | 442-407-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-06-15 | 442-407-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-06-15 | 442-407-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-06-15 | 442-407-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-06-15 | 442-407-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-06-15 | 442-433-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2023-06-15 | 442-451-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | YUCCA VLY | CA |
| 2023-06-15 | 442-646-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2023-06-15 | 442-646-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2023-06-15 | 442-646-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2023-06-15 | 442-646-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2023-06-15 | 442-646-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2023-06-15 | 442-855-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-15 | 442-855-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-15 | 442-855-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-15 | 442-855-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-15 | 442-855-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-15 | 442-855-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VTVL APVY | CA |
| 2023-06-14 | 442-313-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HAVASULAKE | CA |
| 2023-06-14 | 442-542-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | NEEDLES | CA |
| 2023-06-01 | 442-358-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | RAMONA | CA |
| 2023-06-01 | 442-367-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CALEXICO | CA |
| 2023-06-01 | 442-426-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | WRIGHTWOOD | CA |
| 2023-06-01 | 442-646-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BRAWLEY | CA |
| 2023-06-01 | 442-677-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PALMDESERT | CA |
| 2023-05-31 | 442-403-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | DSERTHTSPG | CA |
| 2023-05-31 | 442-404-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | VISTA | CA |
| 2023-05-30 | 442-401-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | VICTORVL | CA |
| 2023-05-24 | 442-375-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | OCSD OCSD | CA |
| 2023-05-24 | 442-944-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA |
| 2023-05-19 | 442-944-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | VISTA | CA |
| 2023-05-03 | 442-396-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-396-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-396-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-396-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-396-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-402-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-402-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-402-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-402-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-402-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-402-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-420-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-420-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
| 2023-05-03 | 442-420-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALM SPG | CA |
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.