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 |
|---|---|---|---|---|---|---|---|
| 2013-10-11 | 928-458-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PRESCOTT | AZ |
| 2013-09-25 | 928-298-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | PIMA | AZ |
| 2013-09-25 | 928-362-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | SAFFORD | AZ |
| 2013-09-25 | 928-362-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | SAFFORD | AZ |
| 2013-09-25 | 928-613-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF ARIZONA, LLC - AZ | 579F | WINSLOW | AZ |
| 2013-09-20 | 928-285-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
| 2013-09-20 | 928-457-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SNOWFLAKE | AZ |
| 2013-09-17 | 928-566-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LKHAVASUCY | AZ |
| 2013-09-05 | 928-288-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | WINSLOW | AZ |
| 2013-08-30 | 928-216-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PARKER | AZ |
| 2013-08-30 | 928-278-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
| 2013-08-27 | 928-693-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PAGE | AZ |
| 2013-08-20 | 928-614-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PAGE | AZ |
| 2013-08-20 | 928-892-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SHOW LOW | AZ |
| 2013-08-15 | 928-215-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | CLIFTON | AZ |
| 2013-08-15 | 928-275-9XXX | 9000–9999 | Assigned | ONVOY, LLC - AZ | 630E | GLOBE | AZ |
| 2013-08-15 | 928-298-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | PIMA | AZ |
| 2013-08-15 | 928-362-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | SAFFORD | AZ |
| 2013-07-26 | 928-589-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | WINSLOW | AZ |
| 2013-07-25 | 928-478-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | PAYSON | AZ |
| 2013-07-19 | 928-251-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SHOW LOW | AZ |
| 2013-07-11 | 928-457-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SNOWFLAKE | AZ |
| 2013-06-27 | 928-218-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | MEADVIEW | AZ |
| 2013-06-27 | 928-249-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | LKMHVRNCHS | AZ |
| 2013-06-27 | 928-404-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | BULLHDCYN | AZ |
| 2013-06-27 | 928-466-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | CASTLEROCK | AZ |
| 2013-06-27 | 928-577-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | MOHAVE VLY | AZ |
| 2013-06-27 | 928-765-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WIKIEUP | AZ |
| 2013-06-27 | 928-766-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUCCA | AZ |
| 2013-06-27 | 928-769-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PEACH SPG | AZ |
| 2013-06-25 | 928-278-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | BULLHEADCY | AZ |
| 2013-06-25 | 928-278-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | BULLHEADCY | AZ |
| 2013-06-25 | 928-302-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | LKHAVASUCY | AZ |
| 2013-06-25 | 928-302-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | LKHAVASUCY | AZ |
| 2013-06-25 | 928-302-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | LKHAVASUCY | AZ |
| 2013-06-20 | 928-293-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | KINGMAN | AZ |
| 2013-06-20 | 928-293-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | KINGMAN | AZ |
| 2013-06-20 | 928-293-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | KINGMAN | AZ |
| 2013-06-17 | 928-487-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | GLOBE | AZ |
| 2013-06-10 | 928-285-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SOMERTON | AZ |
| 2013-05-31 | 928-215-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | CLIFTON | AZ |
| 2013-05-23 | 928-679-6XXX | 6000–6999 | Assigned | LEVEL 3 TELECOM OF ARIZONA, LLC - AZ | 7552 | FLAGSTAFF | AZ |
| 2013-05-15 | 928-216-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | PARKER | AZ |
| 2013-05-15 | 928-599-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AZ | 630E | GRANDCNYON | AZ |
| 2013-05-07 | 928-851-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - AZ | 587F | BOUSE | AZ |
| 2013-05-02 | 928-415-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | WICKENBURG | AZ |
| 2013-04-29 | 928-554-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | SEDONA | AZ |
| 2013-04-29 | 928-846-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | LKHAVASUCY | AZ |
| 2013-04-18 | 928-278-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BULLHEADCY | AZ |
| 2013-04-04 | 928-302-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | LKHAVASUCY | 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.