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 |
|---|---|---|---|---|---|---|---|
| 2022-09-01 | 928-451-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SEDONA | AZ |
| 2022-09-01 | 928-867-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-09-01 | 928-867-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-09-01 | 928-867-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | KINGMAN | AZ |
| 2022-08-30 | 928-320-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | PIMA | AZ |
| 2022-08-30 | 928-320-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | PIMA | AZ |
| 2022-08-24 | 928-384-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | SUPAI | AZ |
| 2022-08-23 | 928-438-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | FLAGSTAFF | AZ |
| 2022-08-18 | 928-270-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SPRINGERVL | AZ |
| 2022-08-18 | 928-558-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GREER | AZ |
| 2022-08-17 | 928-281-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | SELIGMAN | AZ |
| 2022-08-15 | 928-370-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | MARBLECNYN | AZ |
| 2022-08-12 | 928-435-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
| 2022-08-12 | 928-435-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
| 2022-08-10 | 928-258-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | AGUILA | AZ |
| 2022-08-10 | 928-390-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | SOMERTON | AZ |
| 2022-08-10 | 928-406-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | WINSLOW | AZ |
| 2022-08-10 | 928-534-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | SAFFORD | AZ |
| 2022-08-10 | 928-596-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PAYSON | AZ |
| 2022-08-04 | 928-438-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FLAGSTAFF | AZ |
| 2022-07-28 | 928-534-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SAFFORD | AZ |
| 2022-07-27 | 928-365-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | GREENEHVN | AZ |
| 2022-07-27 | 928-517-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | PAYSON | AZ |
| 2022-07-19 | 928-320-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | PIMA | AZ |
| 2022-07-18 | 928-389-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | EHRENBERG | AZ |
| 2022-07-18 | 928-534-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | SAFFORD | AZ |
| 2022-07-18 | 928-534-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | SAFFORD | AZ |
| 2022-07-18 | 928-534-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | SAFFORD | AZ |
| 2022-07-12 | 928-270-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | SPRINGERVL | AZ |
| 2022-07-05 | 928-461-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | TUBA CITY | AZ |
| 2022-07-05 | 928-652-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | WIDE RUINS | AZ |
| 2022-07-05 | 928-659-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | ROCK POINT | AZ |
| 2022-07-05 | 928-672-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | SHONTO | AZ |
| 2022-07-05 | 928-724-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | TSAILE | AZ |
| 2022-07-05 | 928-728-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | ROUGH ROCK | AZ |
| 2022-07-05 | 928-736-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | TOYEI | AZ |
| 2022-06-30 | 928-426-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PRESCOTT | AZ |
| 2022-06-29 | 928-251-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | SHOW LOW | AZ |
| 2022-06-29 | 928-281-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | SELIGMAN | AZ |
| 2022-06-29 | 928-290-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | BAGDAD | AZ |
| 2022-06-29 | 928-312-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | INCRPTCNYN | AZ |
| 2022-06-29 | 928-360-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | CHINLE | AZ |
| 2022-06-29 | 928-410-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | GANADO | AZ |
| 2022-06-29 | 928-489-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | KAYENTA | AZ |
| 2022-06-29 | 928-653-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | RED VALLEY | AZ |
| 2022-06-29 | 928-654-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | GREASEWOOD | AZ |
| 2022-06-29 | 928-658-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | DENNEHOTSO | AZ |
| 2022-06-29 | 928-673-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | KAIBITO | AZ |
| 2022-06-29 | 928-686-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | LEUPP | AZ |
| 2022-06-29 | 928-698-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | LE CHEE | 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.