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 |
|---|---|---|---|---|---|---|---|
| 2012-05-02 | 928-228-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | PIMA | AZ |
| 2012-05-02 | 928-235-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | SAFFORD | AZ |
| 2012-05-02 | 928-248-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | YUMA | AZ |
| 2012-05-02 | 928-272-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | GRANDCNYON | AZ |
| 2012-05-02 | 928-288-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | WINSLOW | AZ |
| 2012-05-02 | 928-325-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | SEDONA | AZ |
| 2012-05-02 | 928-363-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | PAYSON | AZ |
| 2012-05-02 | 928-379-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | PRESCOTT | AZ |
| 2012-05-02 | 928-415-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | WICKENBURG | AZ |
| 2012-05-02 | 928-433-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | FLAGSTAFF | AZ |
| 2012-05-02 | 928-482-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | GILA BEND | AZ |
| 2012-05-02 | 928-487-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | GLOBE | AZ |
| 2012-05-02 | 928-550-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | SOMERTON | AZ |
| 2012-05-02 | 928-612-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | PAGE | AZ |
| 2012-04-30 | 928-248-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | YUMA | AZ |
| 2012-04-24 | 928-851-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | BOUSE | AZ |
| 2012-04-23 | 928-216-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | PARKER | AZ |
| 2012-04-06 | 928-217-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | YUMA | AZ |
| 2012-04-06 | 928-217-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | YUMA | AZ |
| 2012-04-06 | 928-217-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | YUMA | AZ |
| 2012-04-06 | 928-817-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | YUMA | AZ |
| 2012-04-06 | 928-817-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | YUMA | AZ |
| 2012-04-06 | 928-817-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | YUMA | AZ |
| 2012-04-06 | 928-856-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-06 | 928-856-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-06 | 928-856-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-06 | 928-856-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-06 | 928-890-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-06 | 928-890-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-06 | 928-890-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-06 | 928-890-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-06 | 928-890-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-06 | 928-890-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2012-04-03 | 928-662-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | PARKER DAM | AZ |
| 2012-03-21 | 928-366-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | YUMA | AZ |
| 2012-03-19 | 928-892-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SHOW LOW | AZ |
| 2012-03-16 | 928-683-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | GILA BEND | AZ |
| 2012-03-12 | 928-235-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SAFFORD | AZ |
| 2012-03-08 | 928-923-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | EHRENBERG | AZ |
| 2012-03-06 | 928-251-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SHOW LOW | AZ |
| 2012-03-02 | 928-439-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | DUNCAN | AZ |
| 2012-02-29 | 928-275-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | GLOBE | AZ |
| 2012-02-23 | 928-332-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | WHITERIVER | AZ |
| 2012-02-23 | 928-337-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | ST JOHNS | AZ |
| 2012-02-23 | 928-339-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | ALPINE | AZ |
| 2012-02-23 | 928-735-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | GREER | AZ |
| 2012-02-22 | 928-216-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | PARKER | AZ |
| 2012-02-15 | 928-235-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | SAFFORD | AZ |
| 2012-02-08 | 928-515-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | PRESCOTT | AZ |
| 2012-02-08 | 928-551-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SPRINGERVL | 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.