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 |
|---|---|---|---|---|---|---|---|
| 2017-06-12 | 928-882-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | WINSLOW | AZ |
| 2017-06-06 | 928-230-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | LKHAVASUCY | AZ |
| 2017-06-01 | 928-256-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | YUMA | AZ |
| 2017-06-01 | 928-326-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2017-05-31 | 928-258-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | AGUILA | AZ |
| 2017-05-30 | 928-543-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | WICKENBURG | AZ |
| 2017-05-30 | 928-882-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | WINSLOW | AZ |
| 2017-05-23 | 928-250-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AZ | 630E | SAFFORD | AZ |
| 2017-05-22 | 928-236-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | SOMERTON | AZ |
| 2017-05-22 | 928-255-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | FLAGSTAFF | AZ |
| 2017-05-22 | 928-256-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | YUMA | AZ |
| 2017-05-22 | 928-267-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AZ | 630E | PAYSON | AZ |
| 2017-05-22 | 928-316-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | PIMA | AZ |
| 2017-05-22 | 928-331-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | GILA BEND | AZ |
| 2017-05-22 | 928-543-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AZ | 630E | WICKENBURG | AZ |
| 2017-05-22 | 928-582-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | PRESCOTT | AZ |
| 2017-05-22 | 928-612-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AZ | 630E | PAGE | AZ |
| 2017-05-22 | 928-813-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | GLOBE | AZ |
| 2017-05-22 | 928-888-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AZ | 630E | GRANDCNYON | AZ |
| 2017-05-17 | 928-882-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | WINSLOW | AZ |
| 2017-04-27 | 928-800-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AZ | 630E | PRESCOTT | AZ |
| 2017-04-27 | 928-800-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | PRESCOTT | AZ |
| 2017-04-10 | 928-577-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MOHAVE VLY | AZ |
| 2017-03-29 | 928-291-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | YUMA | AZ |
| 2017-03-29 | 928-326-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | FLAGSTAFF | AZ |
| 2017-03-29 | 928-582-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | PRESCOTT | AZ |
| 2017-03-29 | 928-852-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | SEDONA | AZ |
| 2017-03-27 | 928-326-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ |
| 2017-03-20 | 928-296-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | BULLHEADCY | AZ |
| 2017-03-13 | 928-250-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | SAFFORD | AZ |
| 2017-03-13 | 928-892-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | SHOW LOW | AZ |
| 2017-03-13 | 928-961-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | GLOBE | AZ |
| 2017-03-07 | 928-285-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SOMERTON | AZ |
| 2017-03-07 | 928-929-1XXX | 1000–1999 | Assigned | WIDE VOICE, LLC - AZ | 410H | GILA BEND | AZ |
| 2017-03-01 | 928-888-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | GRANDCNYON | AZ |
| 2017-02-13 | 928-399-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | SEDONA | AZ |
| 2017-02-13 | 928-399-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | SEDONA | AZ |
| 2017-01-18 | 928-471-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | PAYSON | AZ |
| 2017-01-18 | 928-471-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | PAYSON | AZ |
| 2017-01-18 | 928-471-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | PAYSON | AZ |
| 2017-01-13 | 928-596-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | PAYSON | AZ |
| 2017-01-12 | 928-582-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | PRESCOTT | AZ |
| 2017-01-10 | 928-256-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | YUMA | AZ |
| 2017-01-06 | 928-295-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SEDONA | AZ |
| 2017-01-06 | 928-577-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | MOHAVE VLY | AZ |
| 2016-12-20 | 928-593-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | SEDONA | AZ |
| 2016-11-28 | 928-256-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | YUMA | AZ |
| 2016-11-22 | 928-256-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | YUMA | AZ |
| 2016-11-18 | 928-239-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | SEDONA | AZ |
| 2016-11-18 | 928-582-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | PRESCOTT | 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.