NumberResearchRecent thousands-block assignments
31 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 530
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 |
|---|---|---|---|---|---|---|---|
| 2026-01-21 | 530-955-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEVADACITY | CA |
| 2026-01-07 | 530-775-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | YREKA | CA |
| 2026-01-07 | 530-997-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | CA |
| 2026-01-06 | 530-998-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2026-01-06 | 530-998-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2026-01-06 | 530-998-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-12-26 | 530-267-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHICO | CA |
| 2025-12-26 | 530-267-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHICO | CA |
| 2025-12-26 | 530-530-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | ROBBINS | CA |
| 2025-12-26 | 530-530-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | ROBBINS | CA |
| 2025-12-26 | 530-530-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | ROBBINS | CA |
| 2025-12-26 | 530-530-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | ROBBINS | CA |
| 2025-12-26 | 530-530-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | ROBBINS | CA |
| 2025-12-18 | 530-483-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WHEATLAND | CA |
| 2025-12-17 | 530-653-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN NORTH | CA |
| 2025-12-11 | 530-260-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SUSANVILLE | CA |
| 2025-12-11 | 530-299-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ADIN | CA |
| 2025-12-11 | 530-495-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | COLEVILLE | CA |
| 2025-12-11 | 530-502-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PRINCETON | CA |
| 2025-12-11 | 530-640-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ALTURAS | CA |
| 2025-12-11 | 530-761-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | DAVIS | CA |
| 2025-12-11 | 530-779-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MILLVILLE | CA |
| 2025-12-09 | 530-998-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | AUBN MAIN | CA |
| 2025-12-05 | 530-920-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | GRVY MAIN | CA |
| 2025-12-04 | 530-327-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PARADISE | CA |
| 2025-11-25 | 530-827-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HERLONG | CA |
| 2025-11-04 | 530-759-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | DAVIS | CA |
| 2025-10-30 | 530-202-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-10-30 | 530-998-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-10-30 | 530-998-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-10-30 | 530-998-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-10-17 | 530-931-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SUSANVILLE | CA |
| 2025-10-03 | 530-983-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | REDDING | CA |
| 2025-09-26 | 530-702-7XXX | 7000–7999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | WOODLAND | CA |
| 2025-09-24 | 530-690-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RED BLUFF | CA |
| 2025-09-24 | 530-997-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | CA |
| 2025-09-24 | 530-997-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | CA |
| 2025-09-18 | 530-746-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | DAVIS | CA |
| 2025-09-18 | 530-996-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-09-18 | 530-996-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-09-18 | 530-996-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-09-12 | 530-986-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2025-09-10 | 530-456-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GRIDLEY | CA |
| 2025-09-10 | 530-471-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WEED | CA |
| 2025-09-10 | 530-655-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NICOLAUS | CA |
| 2025-09-10 | 530-705-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CHALLENGE | CA |
| 2025-09-10 | 530-922-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | OROVILLE | CA |
| 2025-09-10 | 530-935-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GEORGETOWN | CA |
| 2025-09-10 | 530-992-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WEAVERVL | CA |
| 2025-09-03 | 530-986-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | REDDING | 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.