NumberResearchRecent thousands-block assignments
9 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 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 |
|---|---|---|---|---|---|---|---|
| 2022-06-29 | 928-725-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | PINONCTNWD | AZ |
| 2022-06-29 | 928-730-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | FTDEFIANCE | AZ |
| 2022-06-29 | 928-787-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | LUKACHUKAI | AZ |
| 2022-06-29 | 928-886-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | ST JOHNS | AZ |
| 2022-06-28 | 928-320-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | PIMA | AZ |
| 2022-06-28 | 928-464-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | WICKENBURG | AZ |
| 2022-06-28 | 928-701-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | GLOBE | AZ |
| 2022-06-28 | 928-732-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | LKHAVASUCY | AZ |
| 2022-06-27 | 928-439-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | DUNCAN | AZ |
| 2022-06-13 | 928-968-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | PRESCOTT | AZ |
| 2022-06-06 | 928-258-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | AGUILA | AZ |
| 2022-06-01 | 928-320-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PIMA | AZ |
| 2022-05-18 | 928-483-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ |
| 2022-05-18 | 928-652-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WIDE RUINS | AZ |
| 2022-05-16 | 928-867-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | KINGMAN | AZ |
| 2022-05-13 | 928-519-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MOHAVE VLY | AZ |
| 2022-05-12 | 928-732-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | LKHAVASUCY | AZ |
| 2022-05-10 | 928-375-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALOME | AZ |
| 2022-04-29 | 928-356-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PRESCOTT | AZ |
| 2022-04-20 | 928-292-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | CLIFTON | AZ |
| 2022-04-19 | 928-382-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | SALOME | AZ |
| 2022-04-18 | 928-390-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | SOMERTON | AZ |
| 2022-04-18 | 928-686-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LEUPP | AZ |
| 2022-04-18 | 928-878-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | GILA BEND | AZ |
| 2022-04-18 | 928-889-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | LKHAVASUCY | AZ |
| 2022-04-14 | 928-221-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ |
| 2022-04-14 | 928-546-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | BULLHEADCY | AZ |
| 2022-04-13 | 928-408-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ |
| 2022-04-07 | 928-393-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | PIMA | AZ |
| 2022-03-30 | 928-461-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TUBA CITY | AZ |
| 2022-03-30 | 928-461-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TUBA CITY | AZ |
| 2022-03-29 | 928-631-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | MORMONLAKE | AZ |
| 2022-03-29 | 928-631-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | MORMONLAKE | AZ |
| 2022-03-21 | 928-385-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-03-21 | 928-385-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-03-17 | 928-408-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | YUMA | AZ |
| 2022-03-17 | 928-408-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | YUMA | AZ |
| 2022-03-17 | 928-843-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SOMERTON | AZ |
| 2022-03-17 | 928-843-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SOMERTON | AZ |
| 2022-03-17 | 928-968-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PRESCOTT | AZ |
| 2022-03-14 | 928-595-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PAYSON | AZ |
| 2022-03-09 | 928-390-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
| 2022-03-09 | 928-390-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
| 2022-03-09 | 928-390-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
| 2022-02-25 | 928-546-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
| 2022-02-25 | 928-546-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
| 2022-02-25 | 928-546-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
| 2022-02-25 | 928-546-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
| 2022-02-25 | 928-546-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
| 2022-02-25 | 928-546-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
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.