NumberResearchRecent thousands-block assignments
9 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 928
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 |
|---|---|---|---|---|---|---|---|
| 2024-12-09 | 928-509-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ |
| 2024-12-09 | 928-509-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ |
| 2024-12-06 | 928-500-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | AGUILA | AZ |
| 2024-12-06 | 928-500-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | AGUILA | AZ |
| 2024-12-06 | 928-500-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | AGUILA | AZ |
| 2024-12-06 | 928-512-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
| 2024-12-06 | 928-512-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
| 2024-11-27 | 928-509-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ |
| 2024-11-27 | 928-671-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WICKENBURG | AZ |
| 2024-11-22 | 928-506-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PIMA | AZ |
| 2024-11-15 | 928-324-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAFFORD | AZ |
| 2024-11-15 | 928-508-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | YUMA | AZ |
| 2024-11-15 | 928-513-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | CLIFTON | AZ |
| 2024-11-15 | 928-531-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PRESCOTT | AZ |
| 2024-11-15 | 928-531-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PRESCOTT | AZ |
| 2024-11-15 | 928-933-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PINETOP | AZ |
| 2024-11-12 | 928-510-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
| 2024-11-12 | 928-655-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
| 2024-11-12 | 928-933-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PINETOP | AZ |
| 2024-10-23 | 928-531-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PRESCOTT | AZ |
| 2024-10-23 | 928-836-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | HEBER | AZ |
| 2024-10-17 | 928-239-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SEDONA | AZ |
| 2024-10-17 | 928-487-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GLOBE | AZ |
| 2024-10-17 | 928-852-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SEDONA | AZ |
| 2024-10-17 | 928-946-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SAFFORD | AZ |
| 2024-10-16 | 928-387-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SAFFORD | AZ |
| 2024-09-19 | 928-531-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PRESCOTT | AZ |
| 2024-09-13 | 928-397-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | CASTLEROCK | AZ |
| 2024-09-13 | 928-397-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | CASTLEROCK | AZ |
| 2024-09-13 | 928-516-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | MOHAVE VLY | AZ |
| 2024-09-13 | 928-970-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PAYSON | AZ |
| 2024-09-12 | 928-892-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SHOW LOW | AZ |
| 2024-08-29 | 928-241-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | HOLBROOK | AZ |
| 2024-08-23 | 928-489-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KAYENTA | AZ |
| 2024-07-17 | 928-410-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GANADO | AZ |
| 2024-07-17 | 928-842-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PARKER | AZ |
| 2024-07-12 | 928-386-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WINSLOW | AZ |
| 2024-07-11 | 928-506-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PIMA | AZ |
| 2024-07-11 | 928-506-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PIMA | AZ |
| 2024-07-01 | 928-419-4XXX | 4000–4999 | Assigned | CSC WIRELESS, LLC | 425J | FLAGSTAFF | AZ |
| 2024-07-01 | 928-547-8XXX | 8000–8999 | Assigned | CSC WIRELESS, LLC | 425J | FLAGSTAFF | AZ |
| 2024-06-25 | 928-518-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SEDONA | AZ |
| 2024-06-05 | 928-500-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | AGUILA | AZ |
| 2024-06-05 | 928-500-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | AGUILA | AZ |
| 2024-06-05 | 928-547-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ |
| 2024-06-05 | 928-547-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ |
| 2024-06-05 | 928-547-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ |
| 2024-05-10 | 928-513-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | CLIFTON | AZ |
| 2024-05-09 | 928-397-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | CASTLEROCK | AZ |
| 2024-05-08 | 928-510-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
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.