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 |
|---|---|---|---|---|---|---|---|
| 2013-04-02 | 928-466-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | CASTLEROCK | AZ |
| 2013-03-28 | 928-212-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | PAGE | AZ |
| 2013-03-28 | 928-212-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | PAGE | AZ |
| 2013-03-28 | 928-233-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2013-03-28 | 928-233-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | FLAGSTAFF | AZ |
| 2013-03-28 | 928-272-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | GRANDCNYON | AZ |
| 2013-03-28 | 928-272-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | GRANDCNYON | AZ |
| 2013-03-28 | 928-323-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | SOMERTON | AZ |
| 2013-03-28 | 928-323-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | SOMERTON | AZ |
| 2013-03-28 | 928-325-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | SEDONA | AZ |
| 2013-03-28 | 928-325-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | SEDONA | AZ |
| 2013-03-28 | 928-363-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | PAYSON | AZ |
| 2013-03-28 | 928-363-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | PAYSON | AZ |
| 2013-03-28 | 928-415-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | WICKENBURG | AZ |
| 2013-03-28 | 928-415-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | WICKENBURG | AZ |
| 2013-03-28 | 928-482-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | GILA BEND | AZ |
| 2013-03-28 | 928-482-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | GILA BEND | AZ |
| 2013-03-28 | 928-515-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | PRESCOTT | AZ |
| 2013-03-28 | 928-515-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | PRESCOTT | AZ |
| 2013-03-28 | 928-723-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | YUMA | AZ |
| 2013-03-28 | 928-723-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | YUMA | AZ |
| 2013-03-15 | 928-298-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PIMA | AZ |
| 2013-03-15 | 928-298-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PIMA | AZ |
| 2013-03-12 | 928-275-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | GLOBE | AZ |
| 2013-03-12 | 928-362-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | SAFFORD | AZ |
| 2013-03-12 | 928-362-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | SAFFORD | AZ |
| 2013-03-08 | 928-589-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WINSLOW | AZ |
| 2013-02-25 | 928-723-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AZ | 630E | YUMA | AZ |
| 2013-02-19 | 928-285-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SOMERTON | AZ |
| 2013-02-14 | 928-362-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | SAFFORD | AZ |
| 2013-02-14 | 928-589-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AZ | 630E | WINSLOW | AZ |
| 2013-02-14 | 928-723-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | YUMA | AZ |
| 2013-02-13 | 928-272-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | GRANDCNYON | AZ |
| 2013-02-11 | 928-238-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | PAYSON | AZ |
| 2013-02-11 | 928-451-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | SEDONA | AZ |
| 2013-01-16 | 928-363-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | PAYSON | AZ |
| 2013-01-04 | 928-415-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | WICKENBURG | AZ |
| 2012-12-26 | 928-232-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | WICKENBURG | AZ |
| 2012-12-26 | 928-232-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | WICKENBURG | AZ |
| 2012-12-26 | 928-238-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AZ | 630E | PAYSON | AZ |
| 2012-12-26 | 928-238-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | PAYSON | AZ |
| 2012-12-26 | 928-239-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AZ | 630E | SEDONA | AZ |
| 2012-12-26 | 928-239-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AZ | 630E | SEDONA | AZ |
| 2012-12-26 | 928-285-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | SOMERTON | AZ |
| 2012-12-26 | 928-285-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | SOMERTON | AZ |
| 2012-12-26 | 928-589-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | WINSLOW | AZ |
| 2012-12-26 | 928-589-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | WINSLOW | AZ |
| 2012-12-26 | 928-660-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | PAGE | AZ |
| 2012-12-26 | 928-660-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AZ | 630E | PAGE | AZ |
| 2012-12-26 | 928-683-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AZ | 630E | GILA BEND | 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.