NumberResearchRecent thousands-block assignments
0 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, all time — NPA 408
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-10-13 | 408-746-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SUNNYVALE | CA |
| 2023-10-12 | 408-415-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MORGANHILL | CA |
| 2023-10-10 | 408-303-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-10-10 | 408-303-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-10-10 | 408-303-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-10-10 | 408-303-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-10-03 | 408-302-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-10-03 | 408-302-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-10-03 | 408-302-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-10-03 | 408-302-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-10-03 | 408-302-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-09-19 | 408-302-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2023-09-19 | 408-302-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2023-09-19 | 408-302-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2023-09-19 | 408-302-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2023-09-19 | 408-403-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SNJS SOUTH | CA |
| 2023-09-19 | 408-403-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNJS SOUTH | CA |
| 2023-09-19 | 408-403-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SNJS SOUTH | CA |
| 2023-09-19 | 408-403-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNJS SOUTH | CA |
| 2023-09-19 | 408-443-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | GILROY | CA |
| 2023-09-19 | 408-443-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | GILROY | CA |
| 2023-09-18 | 408-541-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SUNNYVALE | CA |
| 2023-09-18 | 408-831-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2023-09-18 | 408-877-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SARATOGA | CA |
| 2023-09-18 | 408-965-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SNJS NORTH | CA |
| 2023-09-11 | 408-750-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS NORTH | CA |
| 2023-08-24 | 408-415-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MORGANHILL | CA |
| 2023-08-24 | 408-415-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MORGANHILL | CA |
| 2023-08-17 | 408-501-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-08-17 | 408-557-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-08-17 | 408-764-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-08-17 | 408-931-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-08-17 | 408-969-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS WEST | CA |
| 2023-07-13 | 408-303-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-07-13 | 408-303-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-07-13 | 408-303-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-07-13 | 408-303-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2023-05-23 | 408-518-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SNJS NORTH | CA |
| 2023-05-09 | 408-312-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | SAN MARTIN | CA |
| 2022-11-21 | 408-583-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CAMPBELL | CA |
| 2022-10-19 | 408-582-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2022-10-19 | 408-582-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2022-09-20 | 408-581-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2022-09-01 | 408-581-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-09-01 | 408-581-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-09-01 | 408-581-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-09-01 | 408-581-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-09-01 | 408-581-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS WEST | CA |
| 2022-08-22 | 408-581-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS WEST | CA |
| 2022-08-22 | 408-581-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS WEST | 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.