NumberResearchRecent thousands-block assignments
21 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 |
|---|---|---|---|---|---|---|---|
| 2015-04-07 | 559-598-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MADERA | CA |
| 2015-04-07 | 559-634-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | KINGSBURG | CA |
| 2015-04-07 | 559-682-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CARUTHERS | CA |
| 2015-04-07 | 559-715-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CHOWCHILLA | CA |
| 2015-04-07 | 559-856-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SELMA | CA |
| 2015-04-07 | 559-856-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SELMA | CA |
| 2015-04-07 | 559-921-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LATON | CA |
| 2015-03-27 | 559-368-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | CA |
| 2015-03-26 | 559-721-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FRESNO | CA |
| 2015-03-24 | 559-825-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-24 | 559-825-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-24 | 559-825-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-24 | 559-825-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-24 | 559-825-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-24 | 559-825-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-24 | 559-825-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-24 | 559-825-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-24 | 559-825-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-24 | 559-825-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRESNO | CA |
| 2015-03-17 | 559-899-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2015-03-17 | 559-899-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2015-03-17 | 559-899-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2015-03-16 | 559-368-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | CA |
| 2015-03-16 | 559-794-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HANFORD | CA |
| 2015-03-16 | 559-794-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HANFORD | CA |
| 2015-03-13 | 559-563-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2015-03-13 | 559-563-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2015-03-13 | 559-563-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2015-03-13 | 559-563-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2015-03-13 | 559-690-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISALIA | CA |
| 2015-03-13 | 559-690-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISALIA | CA |
| 2015-03-12 | 559-722-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-12 | 559-722-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-12 | 559-722-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-12 | 559-722-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-12 | 559-722-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-12 | 559-722-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-12 | 559-722-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-12 | 559-722-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-12 | 559-722-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-12 | 559-722-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2015-03-11 | 559-545-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CLOVIS | CA |
| 2015-03-10 | 559-796-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2015-03-10 | 559-796-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2015-03-09 | 559-563-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VISALIA | CA |
| 2015-03-06 | 559-350-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | PORTERVL | CA |
| 2015-03-06 | 559-350-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PORTERVL | CA |
| 2015-03-05 | 559-350-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2015-03-05 | 559-350-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2015-03-05 | 559-586-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LINDSAY | 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.