NumberResearchRecent thousands-block assignments
1 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 480
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 |
|---|---|---|---|---|---|---|---|
| 2006-07-20 | 480-278-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-07-20 | 480-278-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-07-20 | 480-278-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-07-19 | 480-543-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| 2006-07-19 | 480-543-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| 2006-07-19 | 480-543-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| 2006-07-19 | 480-543-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| 2006-07-19 | 480-543-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| 2006-06-29 | 480-298-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-06-29 | 480-298-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-06-29 | 480-298-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-06-28 | 480-751-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-06-22 | 480-285-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-06-22 | 480-285-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-06-22 | 480-285-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-06-14 | 480-751-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | PHOENIX | AZ |
| 2006-06-14 | 480-751-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | PHOENIX | AZ |
| 2006-06-14 | 480-751-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7175 | PHOENIX | AZ |
| 2006-06-14 | 480-751-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7175 | PHOENIX | AZ |
| 2006-06-02 | 480-278-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-06-02 | 480-278-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-06-02 | 480-278-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-06-02 | 480-278-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-05-30 | 480-276-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-05-30 | 480-276-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-05-30 | 480-276-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-05-30 | 480-751-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-05-30 | 480-751-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-05-30 | 480-751-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2006-05-18 | 480-302-6XXX | 6000–6999 | Assigned | SADDLEBACK COMMUNICATIONS COMPANY - AZ | 7991 | PHOENIX | AZ |
| 2006-05-17 | 480-274-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-05-17 | 480-274-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-05-17 | 480-274-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-05-17 | 480-274-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-05-17 | 480-274-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-05-17 | 480-274-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2006-05-16 | 480-286-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-286-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-286-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-286-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-286-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-286-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-381-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-381-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-381-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-381-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-381-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-381-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-381-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2006-05-16 | 480-381-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | 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.