NumberResearchRecent thousands-block assignments
22 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 559
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 |
|---|---|---|---|---|---|---|---|
| 2022-02-21 | 559-669-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2022-02-18 | 559-929-9XXX | 9000–9999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HANFORD | CA |
| 2022-02-18 | 559-996-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CORCORAN | CA |
| 2022-02-15 | 559-867-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | RIVERDALE | CA |
| 2022-02-14 | 559-552-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2022-02-14 | 559-581-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2022-02-14 | 559-680-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2022-02-14 | 559-680-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2022-02-14 | 559-680-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2022-02-08 | 559-680-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FRESNO | CA |
| 2022-02-04 | 559-716-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MADERA | CA |
| 2022-02-04 | 559-716-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MADERA | CA |
| 2022-02-04 | 559-716-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MADERA | CA |
| 2022-01-14 | 559-773-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | LEMOORE | CA |
| 2022-01-14 | 559-773-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LEMOORE | CA |
| 2022-01-14 | 559-773-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | LEMOORE | CA |
| 2022-01-13 | 559-565-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SEQUOIA | CA |
| 2022-01-13 | 559-752-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TIPTON | CA |
| 2022-01-13 | 559-966-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SPRINGVL | CA |
| 2022-01-09 | 559-616-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TULARE | CA |
| 2022-01-09 | 559-809-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | VISALIA | CA |
| 2022-01-09 | 559-809-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | VISALIA | CA |
| 2022-01-09 | 559-809-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | VISALIA | CA |
| 2021-12-30 | 559-809-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | VISALIA | CA |
| 2021-12-21 | 559-774-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | FRESNO | CA |
| 2021-12-14 | 559-768-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | REEDLEY | CA |
| 2021-12-13 | 559-649-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2021-12-01 | 559-567-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KERMAN | CA |
| 2021-11-22 | 559-564-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAKE | CA |
| 2021-11-17 | 559-902-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANGER | CA |
| 2021-11-15 | 559-421-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2021-11-15 | 559-617-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | KINGSBURG | CA |
| 2021-11-15 | 559-629-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2021-11-15 | 559-680-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2021-11-15 | 559-680-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2021-11-15 | 559-680-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2021-11-15 | 559-680-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2021-11-15 | 559-680-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2021-11-15 | 559-680-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2021-11-15 | 559-714-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ORANGECOVE | CA |
| 2021-11-12 | 559-234-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CARUTHERS | CA |
| 2021-11-10 | 559-552-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2021-11-10 | 559-552-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2021-11-02 | 559-829-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANJOAQUIN | CA |
| 2021-11-01 | 559-345-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LEMOORE | CA |
| 2021-11-01 | 559-345-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LEMOORE | CA |
| 2021-11-01 | 559-589-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HANFORD | CA |
| 2021-11-01 | 559-607-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DINUBA | CA |
| 2021-11-01 | 559-607-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DINUBA | CA |
| 2021-11-01 | 559-772-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HANFORD | 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.