NumberResearchRecent thousands-block assignments
7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 350
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 |
|---|---|---|---|---|---|---|---|
| 2024-11-08 | 350-221-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2024-11-07 | 350-750-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SNRA MAIN | CA |
| 2024-11-01 | 350-225-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOS BANOS | CA |
| 2024-11-01 | 350-225-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOS BANOS | CA |
| 2024-10-23 | 350-225-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOS BANOS | CA |
| 2024-10-22 | 350-234-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | CA |
| 2024-10-21 | 350-233-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-10-21 | 350-233-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-10-18 | 350-228-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-10-18 | 350-228-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-10-18 | 350-231-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-10-17 | 350-224-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-10-14 | 350-530-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ESCALON | CA |
| 2024-10-10 | 350-203-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | DOS PALOS | CA |
| 2024-10-08 | 350-232-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PINECREST | CA |
| 2024-10-07 | 350-208-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | KNIGHTFRRY | CA |
| 2024-10-03 | 350-227-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TRACY | CA |
| 2024-09-23 | 350-231-0XXX | 0000–0999 | Assigned | LEAP TELECOM, LLC | 616J | STOCKTON | CA |
| 2024-09-19 | 350-227-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TRACY | CA |
| 2024-09-18 | 350-225-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LOS BANOS | CA |
| 2024-09-16 | 350-229-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MANTECA | CA |
| 2024-09-16 | 350-229-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MANTECA | CA |
| 2024-09-05 | 350-230-0XXX | 0000–0999 | Assigned | NUSO, LLC | 732J | MODESTO | CA |
| 2024-09-05 | 350-230-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | MODESTO | CA |
| 2024-09-05 | 350-230-8XXX | 8000–8999 | Assigned | NUSO, LLC | 732J | MODESTO | CA |
| 2024-08-30 | 350-230-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2024-08-29 | 350-205-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLANADA | CA |
| 2024-08-29 | 350-221-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LODI | CA |
| 2024-08-29 | 350-226-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2024-08-29 | 350-630-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RIVERBANK | CA |
| 2024-08-28 | 350-750-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNRA MAIN | CA |
| 2024-08-19 | 350-224-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-08-19 | 350-224-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-08-19 | 350-224-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-08-16 | 350-229-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MANTECA | CA |
| 2024-08-16 | 350-229-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MANTECA | CA |
| 2024-08-16 | 350-229-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MANTECA | CA |
| 2024-08-15 | 350-205-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLANADA | CA |
| 2024-08-15 | 350-221-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LODI | CA |
| 2024-08-15 | 350-221-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LODI | CA |
| 2024-08-12 | 350-960-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WTFR MAIN | CA |
| 2024-08-06 | 350-228-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-08-06 | 350-228-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-08-06 | 350-228-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-08-01 | 350-226-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2024-08-01 | 350-226-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2024-07-30 | 350-225-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOS BANOS | CA |
| 2024-07-29 | 350-224-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ATWATER | CA |
| 2024-07-29 | 350-225-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LOS BANOS | CA |
| 2024-07-29 | 350-225-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LOS BANOS | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.