NumberResearchRecent thousands-block assignments
22 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 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 |
|---|---|---|---|---|---|---|---|
| 2026-04-06 | 559-991-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TULARE | CA |
| 2026-04-02 | 559-986-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2026-04-02 | 559-986-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2026-04-02 | 559-986-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2026-03-30 | 559-559-1XXX | 1000–1999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | CHOWCHILLA | CA |
| 2026-03-26 | 559-596-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DINUBA | CA |
| 2026-02-19 | 559-989-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISALIA | CA |
| 2026-02-04 | 559-968-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2026-02-04 | 559-968-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2026-01-30 | 559-928-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-951-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-969-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-987-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-987-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-987-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-987-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-30 | 559-987-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2026-01-23 | 559-368-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | CA |
| 2026-01-23 | 559-670-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HANFORD | CA |
| 2026-01-13 | 559-987-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2026-01-13 | 559-987-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2026-01-13 | 559-987-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2026-01-13 | 559-987-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2026-01-13 | 559-987-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2026-01-05 | 559-529-8XXX | 8000–8999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | TIPTON | CA |
| 2025-12-31 | 559-883-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2025-12-22 | 559-559-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CHOWCHILLA | CA |
| 2025-12-22 | 559-559-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | CHOWCHILLA | CA |
| 2025-12-22 | 559-559-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | CHOWCHILLA | CA |
| 2025-12-22 | 559-559-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | CHOWCHILLA | CA |
| 2025-12-18 | 559-879-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2025-12-18 | 559-913-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2025-12-18 | 559-913-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2025-12-18 | 559-913-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2025-12-18 | 559-952-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PARLIER | CA |
| 2025-12-18 | 559-989-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2025-12-18 | 559-989-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2025-12-18 | 559-989-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2025-12-18 | 559-989-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2025-12-18 | 559-989-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2025-12-18 | 559-989-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | 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.