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 |
|---|---|---|---|---|---|---|---|
| 2008-04-28 | 928-637-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | FLAGSTAFF | AZ |
| 2008-04-28 | 928-714-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | FLAGSTAFF | AZ |
| 2008-04-21 | 928-247-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ |
| 2008-04-21 | 928-304-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ |
| 2008-04-21 | 928-304-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ |
| 2008-04-21 | 928-812-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | GLOBE | AZ |
| 2008-03-28 | 928-239-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AZ | 630E | SEDONA | AZ |
| 2008-03-18 | 928-274-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SEDONA | AZ |
| 2008-03-14 | 928-575-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PARKER | AZ |
| 2008-03-03 | 928-679-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | FLAGSTAFF | AZ |
| 2008-02-21 | 928-247-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | YUMA | AZ |
| 2008-02-21 | 928-247-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | YUMA | AZ |
| 2008-02-19 | 928-473-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | GLOBE | AZ |
| 2008-02-01 | 928-432-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SAFFORD | AZ |
| 2008-02-01 | 928-432-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SAFFORD | AZ |
| 2008-01-31 | 928-892-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SHOW LOW | AZ |
| 2008-01-30 | 928-219-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | BULLHEADCY | AZ |
| 2008-01-30 | 928-315-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SOMERTON | AZ |
| 2008-01-29 | 928-583-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | PRESCOTT | AZ |
| 2008-01-29 | 928-812-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | GLOBE | AZ |
| 2008-01-29 | 928-864-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ |
| 2008-01-22 | 928-432-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SAFFORD | AZ |
| 2008-01-17 | 928-458-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | PRESCOTT | AZ |
| 2008-01-17 | 928-458-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | PRESCOTT | AZ |
| 2008-01-15 | 928-251-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SHOW LOW | AZ |
| 2008-01-07 | 928-848-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PRESCOTT | AZ |
| 2007-12-26 | 928-287-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | YUMA | AZ |
| 2007-12-21 | 928-302-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | LKHAVASUCY | AZ |
| 2007-12-12 | 928-276-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | YUMA | AZ |
| 2007-12-03 | 928-251-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | SHOW LOW | AZ |
| 2007-11-28 | 928-219-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | BULLHEADCY | AZ |
| 2007-11-15 | 928-358-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PINETOP | AZ |
| 2007-11-15 | 928-864-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ |
| 2007-11-15 | 928-961-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | GLOBE | AZ |
| 2007-11-14 | 928-848-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PRESCOTT | AZ |
| 2007-11-14 | 928-848-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PRESCOTT | AZ |
| 2007-11-08 | 928-252-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | LKPLEASANT | AZ |
| 2007-11-05 | 928-988-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | YUMA | AZ |
| 2007-11-05 | 928-988-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | YUMA | AZ |
| 2007-11-05 | 928-988-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | YUMA | AZ |
| 2007-10-31 | 928-225-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | FLAGSTAFF | AZ |
| 2007-10-31 | 928-266-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | FLAGSTAFF | AZ |
| 2007-10-25 | 928-286-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FLAGSTAFF | AZ |
| 2007-10-17 | 928-263-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | KINGMAN | AZ |
| 2007-10-15 | 928-442-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PRESCOTT | AZ |
| 2007-09-21 | 928-302-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LKHAVASUCY | AZ |
| 2007-09-21 | 928-304-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ |
| 2007-09-21 | 928-377-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KINGMAN | AZ |
| 2007-09-21 | 928-451-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SEDONA | AZ |
| 2007-09-21 | 928-864-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | 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.